Timing Chain Tensioner Noise

If you do need to take the tensioner off for any reason, set the timing to TDC, and zip tie the chain to the pulleys before you remove it. He points out that in an MG the timing chain is short and fairly tight, and in his words, 'The tensioner just stops the chain flapping about a bit'. insignia timing chain, saab 93 2. The timing chain tensioner keeps your timing chain tight, so that your vehicle's engine will run smoothly and correctly. No rattles or tapping at start up now. Another common timing chain noise on the engines are due to tensioners failing. 2 Ecotec Timing belt replacement Toyota Camry 2000 2. The problem: A rattling noise may be heard coming from the engine upon cold startup. So like i said replace the chain, the guides, the tensioner and also you might want to check your water pump. Any input on whether total - Answered by a verified Nissan Mechanic. Alba Racing XP Manual Cam Chain Tensioner. Your stock tensioner is hydraulic and is prone to failure. This is a common issue with the S62 engines and the main two culprits are worn timing chain guides and timing chain tensioner. But the later user, trakker, described having the same sound and fixing it with a timing chain tensioner replacement. Find our best fitting timing chain tensioners for your vehicle and enjoy free next day delivery or same day pickup at a store near you!. If the noise went away after a couple seconds, that's an indication that it was the bled-down tensioner -- a couple seconds corresponds to the time required for oil to flow back into the tensioner plunger and build up sufficient pressure to force the tensioner rail against the chain. I slowly loosen the 12mm jam nut ( this spins the bolt with it) a half turn or until the noise goes away. 0 Timing Chain Problem? I just bought a 2004 xlt level 2 5 speed and just noticed a quiet rattle coming from the shifter/trans area at low rpms. The dealer gives him a 1400 dollar estimate to replace the timing chain tensioner saying that there is a bulle. Replaced timing chain, gears, guided,tensioner etc. TENSIONER, CAM CHAIN bearing and if so what kind of noise were you hearing that would point out a problem like that? that it sounds like a timing chain or a. Timing chain tensioners are simple but important. The condition may also result in the camshaft turning in a non-uniform fashion, which could lead to the failure of the vacuum pump drive, and a reduction in braking assistance. So like i said replace the chain, the guides, the tensioner and also you might want to check your water pump. In saying this we have also serviced these vehicles with well over 100,000km with out any signs of timing chain issues. Lock timing chain tensioner in. As the engine rotates clockwise, the crankshaft keeps the intake side of the chain tight simply because of the. Also, the timing tensioners themselves could fail! Early symptoms of timing chain wear include front end noise not associated with VANOS, or slapping noises coming from the timing cover. no ticks or noises at all-than at around 140 degress the motor will make a very small knocking sound in the bottom end. It's now back apart and I can see the new tensioner isn't holding pressure so I tried some other tensioners and they do the same thing. the only way to get at the selonoid is to remove the timing chain cover which entails removing the oil pan. The redesigned Ford primary timing chain service kit includes an improved chain tensioner and chain guide, chain, jackshaft and sprockets. HI 318ti, Thanks again for your help, and those useful links. Find Expert Advice on About. You probably should read this opening section of the Ford TSB for the tensioners, this describes the method and correct symptoms to determine and zero in on tensioners: TSB 02-7-6 4. *Update 5/1/19* - The VW timing chain settlement was approved by a judge last December. 8 suffers with the chain tensioner problem like some tsi vrs's have,if in doubt id get it checked by a garage. Cam chain tensioner is on the opposite side of the engine as the timing belt (ie: driver's side on transverse engines). Automatic cam chain tensioner for Polaris RZR 570 900 and 1000. Cam chain tensioner failure is a concern for sure but considering the number of early Harleys still running the OEM tensioners with no issues as compared to those that have had issues; the percentage of failures is very small. Both vehicles with a timing belt or a chain have a tensioning system to keep it snug and centered. (ie vary the rpm when cold) The stock oil filter helps about %50 of the noise. Towed to Audi dealership where they diagnosed a timing chain tensioner problem like many others, but even though mine is the same issue, it is not part of the current settlement class. There is a technical service bulletin out on these from Hyundai. i double checked to see if during installation i may have broken one, but there are both intact. I have no idea if the noise comes from the top or bottom chains. Pulled it all apart, dropped oil pan and slid cover out from under head, didn't want to remove head. You probably should read this opening section of the Ford TSB for the tensioners, this describes the method and correct symptoms to determine and zero in on tensioners: TSB 02-7-6 4. Would the water pump or viscous fan be making this rattly noise?. Edit: As for the noise maybe a tensioner. Hi i have a 2011 Elantra with a timing chain tensioner problems ,when i start the car there is a rattle for one second and the car runs grate ,i replace the tensioner and i still have the same problem ,it look like the tensioner is not keeping the chain thigh is there a TSB for this problem ,what can i do to get this fix. 0 V6 TDI timing chain broken - repair or sell car as is? Timing chain tensioners are known to fail prematurely on these letting the chain jump teeth, early ones are worse, They used better. I'm a mechanic because a badass miracle worker is not an official job title. I initially though that the problem was a minor irritation, but after reading some post from the group I'm starting to wonder if it is more serious. Well, I changed the timing chain tensioner and all abnormal noises are gone. The Top 5 Symptoms. Well, thanks to this web site, I just replaced the timing gears and chain and installed the TSB timing chain tensioner kit. This faulty piece from Honda also makes it impossible to run high lift cam shafts or run forced induction without experiencing TCT failure. RememberHigh RPM running is hard on the valve train including the cam chain. Does anyone have some experience with this problem? Is my assumption correct that I need to replace the chain tensioners? Pelican techs recommended replacing the timing set, gears, guides, chain and tensioners. Learn about this problem, why it occurs, and how to fix it. 3: Sticky main timing chain tensioner I've done a lot of searching on the forums about timing chain problems on VQ35DE. Also the tensioner will never move back in, only moves out to tighten, unless broken but that would cause a whole lot of noise and possible chain jump timing. Bapmic 11317510801 Timing Chain Tensioner for Mini Cooper R50 R53 02-08. I have to believe the Sea Foam also did the same on the hydraulic tensioner on the front timing chain as well. Bob walks us through a Harley cam chain tensioner inspection, and teaches you how to prevent a Harley cam chain tensioner failure on a Twin Cam 88 Engine. A worn timing chain will often rattle as it slaps the timing cover, and a broken rocker arm will sound like a big piece of metal is rattling around inside the top of your engine. The manufacture has come out with updated parts to correct the problem. He took it to the dealer after checking all the fluids. 2 FSI Upper Timing Chain Tensioner Replacement 15. The valves also can potentially cross over and clash if the cam timing is off, as well as hitting a piston. Tie the timing chain to ensure it stays properly aligned with the exhaust and crankshaft timing gear pulleys. Anytime you hear a rattle it means something is loose and needs to be fixed before it breaks. I took off belt, and squeal is still there. (ie vary the rpm when cold) The stock oil filter helps about %50 of the noise. Ford Explorer Worn Timing Chain Cassettes May Cause Rattling Noise From Engine - 306 reports. First thing I would do is use a "real" oil pressure gauge, and see what the oil pressure is doing cold & hot. During a cold start, the hydraulic chain tensioner does not apply as much tension as when the car engine is running. Mark the cam chain at the punch marks on the exhaust camshaft sprocket and the VTC actuator. , is the North American leader and global designer, developer, manufacturer, and distributor of timing drive systems and components for original equipment manufacturers and the automotive aftermarket. 2009 Audi A4 was recalled for oil consumption issues. 5L is stuffed inside your F150. my comment with the chain was all about the p0016 code. Read on to see if you are covered. The shop claims that the timing chain did have slack in it and that a tensioner had failed. And they would indeed last as long or longer than the rest of the engine. DOWNLOADABLE PDF. RememberHigh RPM running is hard on the valve train including the cam chain. it may cause a vibration inside the motor and will be indicated by a rattling noise as the engine idles. This includes both CCTA, CBFA, CAEB and CPMA engines from 2008-2015. Often referred to as the 'Achilles Heel' of the Twin Cam engine are the spring loaded cam chain tensioners on pre-2007 models. i have a 2003 ford explorer 4. Every car design however always has a flaw here or there. Of course don't run it too long without, the oil and water pumps will not turn. 61Nm with tool extension or 85Nm without; Remove the timing chain tensioner tool and insert the real oil. The dealer says it's the Timing Chain Tensioner Adjusters. The first step is to drink a PBRto make a small tool of course. A timing chain tensioner from a mid 90's Dakota V6 is a direct bolt in improvement for the 318/360 engine. Now you can drive it for another 90,000+ miles and not have to worry about any of the major items. As the belt/chain stretches through normal operation, it would get loose and fall off or jump. The timing chain tensioners had to be replace at less than 160,000 kms and after all the other little things that I had to do to it I pedalled it off to some other poor buggar, I ended up buying an older GMC that had 245,000 kms and I have had it for over 5 years now and it has a LS 5. 2 Nissan Start Up Rattle KA24E Timing Chain Noise Fix 1989 to 1997 - Duration: 27:22. What is the correct porcedure for making the chain tensioner work correctly?. I feel sorry for you Taurus SHO guys. The timing chain tensioner shouldn't need changing unless it's leaking. It also has the 3. The dealer will replace this part for free. As the noise seemed to be coming from the front of the engine a quick search on the web produced a report that said the timing chain tensioners were probably to blame. Some make more tapping/ticking noises than others - much of that noise is valvetrain / timing chain related. 5L is stuffed inside your F150. Assuming that the noise you are hearing is in fact the timing chain, then the tensioner has probably reached its limit. If you are starting to get chain noises from the engine, especially on cold start ups you should inspect or replace the tensioner right away. Benefits of Timing Chain Replacement. hi guys, sorry form my english but I write from Italy, I have a ktm 350 exc-f my 2014, I bought it use and I use it for 5 hours, Im seeing strange noises and i think the responsable is the timing chain tensioner that not work well, i think the problem is the pressure oil that it isnt stable becus. The Top 5 Symptoms. At a minimum, the oil seal can be damaged. A broken engine timing chain will result in severe engine damage. CAUTION: Do not rotate the crankshaft or camshafts while the timing chain is removed. Clacking in the valves area, especially when the bike is hot. I decided to go ahead and dig into the timing chain noise a little more. Stretched Timing Chains. 98102106XX. When the chain is worn out a lot of riders elect to go with the manual ones as they feel the tensioner is an issue when in fact the chain is the issue. Engine ran with no noise first few days. A worn timing chain, chain guides, and one or both timing sprockets, will also cause double images and similar results. With me acting as the gopher we took this engine apart. My knowledge about engines is non-existent but my good friend Andy knows a lot about them. In the DOHC Jaguar engine, the chain is much longer and the tensioner more vital. 2001 had weak guide design. Defect: The timing chain tensioner may become defective, which can result in the timing chain jamming. TSI Chain Tensioner Summary. Engine at TDC on No. 2) Your chain is stretched and you need a new one. I've been told that it is the timing chain's causing this, The bike has 54'000 km's on it and it's always on the highway's, Is this expected mileage to be doing timing chains? Could the timing tensioners be causing this ? are the timing tensioners prone to fail on these bikes ? being operated by oil pressure do they give much trouble ?. hear noise caused by a loose or worn timing chain before it. Step 7: Remove the timing belt tensioner. While VN800's have similar tensioners, for whatever reason, they fail far less frequently than the 1500's. Replace Timing Chain and Tensioner for 22R Toyota Hilux 2. The cost stated includes the cost of buying a 27mm socket, since you probably do not have one. So my question is, should I go ahead and replace the timing chain and tensioners while I have the engine out of the vehicle? And while I'm at it, what else should be replaced?. Put it all back together. Timing Chain Tensioner GTi MK6. The noise is most noticeable at idle and seriously sounds like something that’s rattling, but not a “loose” rattle…if that even makes sense. These tensioners are very reliable and durable and normally last the life of the engine. Once the warmer weather came so did the alledged lifter noise. The belt may not make much noise, but the idler and tensioner can. In order to fix the problem, Suzuki recommends replacement of the number 1 tensioner only. Seriously awful. The wear in each one of the chain links adds up over time. Choose how many gift cards you would like below. The first step in replacing the timing chain tensioner is to disconnect the battery. There is a likely hood that the root cause of the noise is the contact between the idler arm/s and the chain housing/s. This engine does not have an air pump. At one time, Harley had used gear driven cams, but to cut down on noise, reverted to a silent timing chain setup as used in many car engines. I originally thought it was t. • If the noise does not increase with engine speed, the timing chain system may not be the cause. ) make contact with the moving cam chain, back the tensioner bolt out 1/4 turn and tighten the jam nut. Later in the day engine startup is quiet. Install the new tensioner the same way the old one came out. the noise seems to be coming from the front of engine. I finally got around to disassembling the engine, and confirmed that the timing chain had elongated, had excessively worn the timing chain guides. How many have heard of using a timing chain tensioner on a 318-360? A buddy of mine turned me on to this trick. TIMING GEAR OR CHAIN AND SPROCKET NOISE Engines designed with timing gears, or those equipped with a timing chain and sprockets, can produce different noise. Removal/installation of timing chain requires: Sump removal. The problem is this is a major repair to remove and replace the tensioners for the timing chains. Timing chain, tensioner. While you’re there, you can do the alternator, water pump and all the belts and hoses. Buy Melling BT403 Stock Replacement Timing Chain Tensioner: Chains - Amazon. It works […]. - There is a very distinctive chain slap noise if the tensioner is bad or the chain is stretched/worn excessively. There is a thread or two on here and elsewhere about that. One of the more common symptoms of a worn timing chain is noise, especially on startup. $840 for parts, $1,300 for labor. Where the chain has started rattling, one fix has been to remove and re-prime the chain's hydraulic tensioner. Noise disappears when engine runs without the belt. All guides were still intact, but very worn at 196k. We did an Internet search and learned that pre-2009 5. I started hearing a very slight chain-like noise when revving the engine to roughly 1500-2000rpm. The computer keeps track of how much the chain stretches over time. Replacing the upper timing chain tensioner is not a task for the complete novice. It was hard as plastic and not sealing anything causing it to rattle upon warm startup. The motor started making noise a week or so ago. The car is a 92 CV with 190k so I am sure I can find many things that could be replaced I just want to find out if this what the noise is and how much time do I have. The timing belt tensioner is part of the internal combustion engine of a vehicle, and it is responsible for keeping the timing belt moving at a consistent pace. 2 FSI Upper Timing Chain Tensioner Replacement 15. Repairing the catastrophic engine. ECCPP Timing Chain Kit Timing Chain Parts Reliable, Durable and Low Failure Rate Timing Chain Guide Rails Set 6PCS for BMW E38 1996-2001,E39 1998. Trying to find a Timing Chain Kit with the updated/revised chain rails for my rig. Replied by wysetech on topic 3. You have to remove the retaining clip then use the tool to retract the tensioner and then remove it from the cam plate. Cures the “death rattle” at startup and prevents failure of the timing chain tensioner shoe, which can be a major engine rebuild if it fails. Also the tensioner will never move back in, only moves out to tighten, unless broken but that would cause a whole lot of noise and possible chain jump timing. Could someone look and hear this video of my 3. 99 Crown Automotive Passenger Side Secondary Timing Chain Tensioner for 99-09 Jeep Grand Cherokee WJ & WK & 06-09 Commander XK with 4. It there's lots of it then it might not be worth replacing the chain. As the title says, I own a 2014 VW Jetta SE 1. Using the tools listed above, the new chain can be linked to the old, passed round the sprockets and then joined. DOWNLOADABLE PDF. My knowledge about engines is non-existent but my good friend Andy knows a lot about them. Nissan Timing Chain Problems. Engine at TDC on No. Rotate the crankshaft counterclockwise to compress the auto tensioner, then align the hole in the lock and auto tensioner, and insert a 1. Timing chain tensioners are simple but important. It is a tight space to work in but if you feel comfortable it is possible to replace without removing a lot of other parts. BA XR8 - The startup noise is starting to sound more grindy and annoying. A new tensioner should be supplied in the fully compressed non-active state. If you hear an abnormal noise from the timing chain, then this indicates that the tensioner has failed. A quick search on the interwebs, including YouTube made it seem like the slack guide had broken and the primary timing chain tensioner wasn't able to keep appropriate tension on the chain, thus was allowing the chain to slap around. once again thanks for the great write up. Symptoms of a worn timing chain. And I want to upgrade the oil pump also to the recommended high pressure pump. Like I posted before I have the timing chain tensioner problem also and i'm still waiting on a fix from Ford. When we bought our 2003 E39 M5 on our birthday at the end of July this year it had ~80k miles on it. • If the noise does not increase with engine speed, the timing chain system may not be the cause. This is a common issue with the S62 engines and the main two culprits are worn timing chain guides and timing chain tensioner. 0s have experienced. 1 Chain vibration damper. Could this be the timing chain tensioner, or maybe the VTC actuator?. 1 day ago · If the chain tensioner is based on oil pressure, and if the tensioner mechanism has internal wear that “leaks down” the oil pressure it had built up, then I’m assuming anytime the oil warms up enough to be thinner and less viscous, then given a chance to drain out of the tensioner you’ll hear the timing chain slap the cover a couple of. 0T FSI engine. This noise may be caused by the secondary timing chain tensioners. Next time I take off my timing cover I'm going to grind down the little arm on the tensioner. I picked up a '97 Dakota in Feb. You might also hear a metallic slapping noise. Design defect is being reported by more and more owners of vehicles with ecoboost engines released between 2012-2014. Thus you cannot just retract the tensioner. How to Replace timing chain on BMW 320i E90 2005-Valve timing procedures. Install the new tensioner the same way the old one came out. Later in the day engine startup is quiet. Step 7: Remove the timing belt tensioner. Assuming that the noise you are hearing is in fact the timing chain, then the tensioner has probably reached its limit. Needed new chain and tensioners. (2) Install the timing chain on the exhaust CVVT sprocket with no slack while turning the CVVT assembly clockwise. Slide the new gasket under the tensioner and seat it on the dowel pins. When replacing a timing chain tensioner, replace the whole timing chain set, which includes all of the chains, the gear set, the tensioner(s), and the guides; An engine may have multiple timing chains; replacing all of the chains and their related components is recommend if one chain requires. Timing Belt Ticking Noise? I am sure it is a timing belt, not a chain. Re: Ford F-150 3V 5. Recently noticed some noise coming from the timing chain cover area of the engine that wasnt there before. The chain tensioner provides chain tension until the chain wears or stretches beyond the tensioners outer limit at which point the timing chain would need replacement. The Audi and VW 2. It would rattle everytime I start the engine after it was sitting for about 1 hour or so. a friend and i are going to attempt to replace the tensioner. So thankfully the timing chain seems fine; bought a tensioner wheel I probably didn't need but a new one won't hurt. It's always a good idea to really listen to your engine every now and then, so you know what the signs of a timing chain getting ready to jump are. If you listen closely with the hood up, what you may be hearing is the timing chain rattling because it's not receiving enough pressure from the tensioner. Don’t Overlook the Tensioner. Webster Book LLP has filed lawsuits seeking compensation for consumers whose vehicles contain these defective timing chain tensioners. Get the job done with the right part, at the right price. This includes both CCTA, CBFA, CAEB and CPMA engines from 2008-2015. Just found this thread after it was discovered I had an oil leak and then the tensioner bolt was found loose. How To Prep A Used 350 Engine 101 For Swap PT2 Intake Gasket, Water Pump - Duration: 6:13. The vehicle has 58000 miles and I contacted my local audi dealer and they said yes it has the extended warranty but they cant just replace parts. Honda timing chain adjustment on ct70 - ko 1971 how do I do it? If you remove this "other oil drain plug", the timing tensioner spring will fall out. This creates a dangerous situati. The timing chain can still make noise and there won't be a power loss unless the timing chain were to jump a tooth. Yes, when we did the cam chain tensioner videos we show the measurement and why many will not be able to go to S&S gear drive. that leaves the selonoid and accuator at the end of the top gear on the timing chain or stretched timing chain. It also has the 3. 98102106XX. My engine is making a ticking noise, and its not the valves because it's too inconsistent and it sounds like the cam chain (a friend of mine had the same thing so I know what it sounds like, but that was on a 250, and it was actually broken). It is low oil pressure caused by the car sitting for an extended period ( 8 hours or so). May 17, 2018 — A VW timing chain class-action lawsuit may be nearing the end as the automaker has. The early revisions were failure prone, and when failing the would allow the timing chain to loosen. The last two days I've noticed a loud rattle/grinding noise when I start the engine for the first time. The sound goes away above idle. com FREE DELIVERY possible on eligible purchases. At 300K the chain is likely stretched (there is no way to tighten it, other than the tensioner). tensioner has serious flaws which can leave the. Kit number 2U3Z-6D256-AA is for balance shaft engines in 1999 to 2001 4×4 Explorer/Mountaineer, 2001 to 2002 4×4 Sport/Sport Trac and all 2002 Explorer/Mountaineer (except engine codes 2G-960-AA and 2G-964. There are three possible reasons why your timing chain is making the rattling noise. You probably should read this opening section of the Ford TSB for the tensioners, this describes the method and correct symptoms to determine and zero in on tensioners: TSB 02-7-6 4. It would rattle everytime I start the engine after it was sitting for about 1 hour or so. At one time, Harley had used gear driven cams, but to cut down on noise, reverted to a silent timing chain setup as used in many car engines. It makes a loud ticking noise. From this point the engine's timing may become erratic and cause cam and crank sensor fault codes; if the vehicle continues to be driven, the chain can snap causing similar damage to that of a snapped timing belt. 7L engine Disconnect and remove camshaft position sensor (4) from left cylinder head. No rattles or tapping at start up now. What I am having a hard time with is figuring out if the cam chain. tensioner has serious flaws which can leave the. This would be the same with the cam phasers. NOTE: Refer to Autodata Technical Data for tightening torques. Anonymous. I had a failed CCT on my VFR and you REALLY know when the cam chain is loose. Tensioner lolled and operated like new just the o ring failed. RememberHigh RPM running is hard on the valve train including the cam chain. In some cases the secondary timing chain tensioners are not fully released during installation. At 80,000 it started to just have a slight ticking noise, audible at idle. 2) Your chain is stretched and you need a new one. Any input on whether total - Answered by a verified Nissan Mechanic. 0 Comments. Sometimes it would rattle sometimes not. 5's and the 06-07 hemi timing chain guides. Timing Belt Whining After Replacement, Need Your Opinions I recently had my timing belt replaced on my ALH TDI by a very well known shop on this forum which works on a lot of TDIs. A Jaguar Land Rover timing chain lawsuit alleges multiple models have timing chain systems that cause failures of the engines. Replace both secondary timing chains and both secondary timing chain tensioner. Here is a step-by-step DIY, and Ive uploaded several pics that hopefully will help others with the same tasks. I've been told that it is the timing chain's causing this, The bike has 54'000 km's on it and it's always on the highway's, Is this expected mileage to be doing timing chains? Could the timing tensioners be causing this ? are the timing tensioners prone to fail on these bikes ? being operated by oil pressure do they give much trouble ?. Any input on whether total - Answered by a verified Nissan Mechanic. Timing components behind cover. But the later user, trakker, described having the same sound and fixing it with a timing chain tensioner replacement. Timing chain noise. We offer a full selection of genuine Honda CR-V Timing Chain Tensioners, engineered specifically to restore factory performance. and Canadian laws and regulations related to motor vehicle emissions. after that use a flathead screwdriver and try to pry the tensioner out. Just like with the rear drive chain and sprockets, the Cam Chain sprockets should be replaced too. tensioner has serious flaws which can leave the. It has a timing chain that turns the cams. Another reason why chain-driven water pumps fail is a worn or defective tensioner and guides. Can this problem actually cause the timing chain to fail and if it does will this cause. The timing chain on your vehicle is the connection between the crankshaft and camshaft. 0l sohc and just replaced heads and timing chain and guides. 7L engines had some problems with timing chain failures that were a direct result of the timing chain tensioner failing. A badly worn timing chain may make a rattling noise as it slaps the timing cover. I have looked at parts drawings and It was the chain tensioners that I was keen to inspect as I could relate the noise to a chain scraping over a hard surface like a damper or a tensioner. M104 noise from front top of engine - timing chain/tensioner? All aux stuff like alternator, AC compressor, belt tensioner etc. The 2008 and newer 4-stroke KTMs (and some earlier SX models) use a timing chain tensioner intended to develop its force using the engine oil pressure. This is the IMS chain tensioner. normally these chains last a very long time 130000ks is just over 80k miles and that engine prolly needs a vcg now but the chain should last more than twice that long. Check out free battery charging and engine diagnostic testing while you are in store. I replaced that tensioner, but again within 100 miles the rattle. This morning the same noise is back until the oil pressure comes up. It can cause damage to the valves and pistons. If the timing belt or chain tensioner loses its strength, the belt/chain has more movement than it should have. I slowly loosen the 12mm jam nut ( this spins the bolt with it) a half turn or until the noise goes away. The timing chain tensioner applies pre-tension to the chain guide rail mechanism. Tensioner, do you mean the timing chain tensioner, or the belt tensioner? Be sure to check the latter as well as the idler pulley; they are unrelated to the timing chain. Finally changed out the Gates belt and the noise went away and has not been heard since. From this point the engine's timing may become erratic and cause cam and crank sensor fault codes; if the vehicle continues to be driven, the chain can snap causing similar damage to that of a snapped timing belt. The last visit involved a complete replacement of the timing chain and tensioner (again), and the service rep blabbered on about a balance shaft but the tech notes aren't clear what exactly went on. Install the new tensioner the same way the old one came out. The chain tensioner (2) attempts to take up the excess slack in the timing chain. A couple of mechanics told me that I need to have my timing chain replaced. Yeah the timing chain noise is generally the upper tensioner and the two guides at the top. The vehicle has 58000 miles and I contacted my local audi dealer and they said yes it has the extended warranty but they cant just replace parts. I picked up a '97 Dakota in Feb. , but beware , if the camshaft gets to. NOTICE The VVT gear bolts may interfere with the housing during removal. Noise started on its own. Replaced timing chain, gears, guided,tensioner etc. Sure enough, the timing chains, tensioners, blade, guide, several seals and gaskets were replaced. I took my truck to the dealer and they found out that it is not an exhaust problem; it is the Timing Chain tensioner. The email address has changed, but some pages have the old address and I cannot edit them. A few days later I received a little package from the United Kingdom with a brand new original chain and auto tensioner in it. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under  Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. 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It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: