How To Check For Jumped Timing Chain

Timing Mark. The worst thing my mechanic said he can imagine that my timing chain was loose, and the sharp noise I heard was when the timing chain jumped a teeth so the timing is incorrect, this is why it is rough. Tighten the timing chain upper guide bolts to 89 in. Ive never in my life seen a chain jump this must of been installed incorrectly by somebody All cars that have chain timing belts have covers or additional pieces of hardware to prevent chain from jumping. 6 Test all other cylinders, each at TDC, and compare the leakage figures to determine which cylinders are faulty. Prices will vary from state to state and from car to car, but they should give you a rough idea of what you can expect to pay. 5 to 2008 or 2009 depending on the model. Just like with the rear drive chain and sprockets, the Cam Chain sprockets should be replaced too. Even though the timing chain itself will probably outlast the rest of your truck, the guides and tensioners are less reliable. I'm about ready to install a new chain & guides, maybe piston & rings as I have a Big Red to ride now. Both cams must have the V8 mark at 12 0'clock. Now since I'm not going to mess with the exhaust valves/cam, I took a zip tie and tied the chain to the sprocket so the chain wouldn't jump off, which will help when putting everything back together -- keeps it in time. Or there may have been some material that could have got trapped in the mesh causing the chain to jump. a good way to check slack is to put a socket on the crank bolt pull the dist cap off and turn the engine back and forth. Check your shop manual. 4 Liter 4 cyl brand new. (Local car guy that solved EVERY automotive ailment with a new timing chain!) Timing chains do not affect cranking speed, so check your battery, starter, relay, connections, and other basics before going on to the next step. com : Car complaints, car problems and defect. Also check for vacuum leaks or cracks in the air induction system. So I shut it off and didn't do too much with it until last month I took off the cover to replace the timing chain and gears and confirmed that it had jumped a tooth and that the cause of this was when it was rebuilt they forgot to put the oil slinger in. Timing Mark. Two key ways, four teeth. I believe this problem is only on 2007 and newer XL7's. Bring the line on the damper to TDC on the timing tab. were driving to work in my trk which is a 97 chev with the 5. The timing chain guides do just that, guide the timing chain so there is little to no slack in the chain. There are several timing marks for your balance shaft that we recommend you line up to TDC before removing your balance shaft belts. Here are the top five things you should be checking to resolve a timing chain problem before it breaks. 0 Timing Chain Jump How likely is it for a timing chain to jump a tooth in a stock 5. 2 days ago she went in the shop to have her timing chain replaced as well as 8 valves that it destroyed in cylinders 1 & 2 as the service adviser stated @ just 22,000 miles. That's significant. 0T BELT DRIVEN Timing Chain Tensioner Failure (B**) The early version of the 2. Was that the total cost? It sounds like it is, just doesn't seem right for it. Timing chains typically last longer than timing belts and are preferred by some automakers for their durability. Timing Chain Jumped a Tooth. While its off, check the keyway on the crank nose. we watch to see how far the ecu adjust the timing retard and advance. You should post in the 2nd generation forum to get their feedback on timing chains. Retimed engine replaced hydraulic tensioner and all is fine. I have a 2004 6i, auto trans, 68k miles. And when that happens, it's over for good. To determine many images inside Toyota Corolla 2004 Timing Belt or Chain graphics gallery please follow this particular website link. I know bikes are way different just wondering if anybody has had a chain fail. I'm talking about the timing chain. In the picture, it shows that the cam is advanced 4 degrees. 6 litre cars. The problem is that seldom will you from the drivers seat be able to audibly depict the increase in engine noise as one of the Timing belt idler bearings starts to make more noise just prior to seizing, or hear the occasional timing “belt slap” as the tensioner can now longer keep the timing belt tight under heavy acceleration just prior to the belt jumping a few teeth. A broken timing belt can cause catastrophic engine damage, therefore it is vital to keep the timing belt in good operating condition. If you have not adjusted the distributor, the the pointer will be off some what from where #1 plug wire attaches when the engine has been rotated to TDC on the balancer. IF A CAR JUMPED TIMING CHAIN. Possibly air jet or air jet passage. 8L 30 valve models. At that point the chain will stretch and eventually skip teeth. A timing chain runs inside the engine, as it needs to be lubricated by the engine oil. Adjust the gear timing by sliding the idler rail side of the room to the proper position (Measure to ensure the same distance from the frame as the drive rail side). First and foremost, thank you for taking the time to view my post. Here is the run down of the common fault with the Audi and VW 1. LH Bank Timing Marks (a) Remove the cylinder head cover (See page EM-25(For 2WD), EM-46(For 4WD)). The sounds heard from the front of the engine are caused by the timing chain beginning to wear and becoming more stretched around the camshaft gears. Failure of the chain leads to engine running and drivability problems, and can result in severe internal engine damage. Also with the valve cover removed and a spark plug removed you might want to test that the timing is correct. The early revisions were failure prone, and when failing the would allow the timing chain to loosen. On almost all Ford vehicles until very recently if a vehicle had a chain it was an interference engine and if an engine had a belt it was a non-interference engine. 7 motor IP: Logged Message: It's complicated but, there's 4 sprockets, 3 chains, 4 timing marks and 9 plated chain links that need to be positioned. It is original from 1972. A timing chain runs inside the engine, as it needs to be lubricated by the engine oil. but i'm having a hard time finding a mechanic thats honest. , should be replaced. The most recently reported issues are listed below. 6 bar (cyl 2) after 3 minutes of cranking. Correlation DTCs are usually caused by jumped timing (timing belts usually) or stretching timing belts or chains. The reason I ask is because of all of the pre-2011 timing chain problems on the N47 engine. You can either rotate your alternator pulley or crank pulley directly. January 14, 2014. I have the engine apart am about to pop off the timing cover to replace the tensioner, but do not know where the timing marks are to locate TDC. My car jumped timing the other day because I have thesee same symtoms like loss of power and stuff after last week when I was doing something in the engine bay and accidentally left a screwdriver near the cam gear and I guess it was a little in it but I went to start the car to test and it got jammed but I immediatley shut the car off. Feed the tool down through the camshaft drive chain to rest on the timing chain. A recall notice to check the timing chain is an admission by GM that there is a problem, and that they have a way of knowing what vehicles are affected. Timing Chain Jumped a Tooth. Which means there is no space for chain to lift up enough to jump a tooth. Do this to both sides. My mom's Cobalt started having the notorious ticking around 100k. Then he asked me if i had removed my distriboter, i said no and so he said my timing was off. If you have a distributor, remove the distributor cap and have a helper crank the engine. Magnets on the flywheel control the timing. E37499 in the instructions. I like to have your insights on this issue. It does knock a little (fuel/ignition)when you put your foot down hard. 7 vortec the timing gun wont work on my truck So i was told by a auto shop that my timing was off 19 %. This is about a $500 job and needs to be taken seriously. Timing chain failures tend to include the timing chain guide rails or the timing chain tensioner, but the timing chain requires replacement only when broken or stretch too far to maintain proper camshaft timing. Gasoline engine. This is where the bottom end of the rear-side timing chain slider mounts, and is designed to hold the chain onto the correct tooth on the crank gear so you don’t risk skipping a tooth as you adjust the valve clearances. The mechanic said he had never seen so much sludge in an engine, and that it could not have possibly built up over the year we had it. If the cams don't move, this indicates that the timing chain has broken or has slipped its gears. how to check for a bad timing chain in 5 minutes the distributor starts to move is how much play is in your timing chain. Or there may have been some material that could have got trapped in the mesh causing the chain to jump. After years of timing belts, Audi and VW switched back to chains on some of their cars in 2005. Years 2000 to 2008. For years, they had the timing belt turning one cam and a chain with a variable valve timing tensioner running the other cam. If you pass your timing point, turn the crank pulley counterclockwise about 30 degrees and then turn it back clockwise to your set point. Symptoms of a broken timing chain guide can range from a rattle noise on startup (not always) to rough idle to a check engine light. Generally, timing chains. 0L Chain Drive - Cam/Crank correlation check - - - - - > Updated December 2018 - New Photos! Here is a quick tip for checking the Audi/Volkswagen 2. : Fixing your car doesn't have to be expensive. This specific graphic (How to Check for A Jumped Timing Chain or Belt Of toyota Corolla 2004 Timing Belt or Chain) preceding can be labelled with: , posted simply by masfebriyan on 2017-06-27 14:00:28. Your problem could be carb also. If the engine is cranking really fast and does not sound like there is compression, it is probable that this chain/chains have jumped &/or broken. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your sit. just to replace the timing chain. step by step audi timing chain tensioner replacement I will start out by stating that you DO NOT HAVE TO REMOVE THE TIMING BELT TO REPLACE THE TIMING CHAIN TENSIONER. Maintenance of an out-of-balance garage door, will keep it trouble-free for years This Home Depot guide explains how to adjust out-of-balance garage doors. Usually a quite noisy timing chest area is an indication. Now check to see where the timing mark on the crank pulley lines up. They'll stretch and retard the timing a little, and maybe throw a code, and if the sprockets get to bad it might jump a tooth. You will also need a top dead centre gauge. First, the engine must be at TDC on the timing mark. Ifind it hard to beleive that eh mechanic when it had a #4 misfire didn't check the compression on that cylinder right away. Yes, this is pretty rare stuff to be wrong, but it does happen. Once you pull out the Tensioner, pull of the old washer that might be stuch to the engine. Learn how to do it yourself and save a lot of money in the process. Page 1 of 2 1 2 Next > Mar 27, 2016 #1. VW Passat timing belt installation guide for 2. Other notes: With the valve cover off and spark plugs out, There was very little air coming out of the plug hole. "Play" accumulates, the belt is not sufficiently tight, and it jumps one or more. This only works if the timing is currently correct. Timing Belt vs. not sure what you are looking at but the 2010/2011 owners manual states under normal maintenance to replace the timing belt on the 2. The timing chain is a crucial piece of equipment that, when working properly, causes the valves to open and close at very. Tighten the timing chain tensioner to 55 ft. Even on old school, non-computer controlled systems. The sounds heard from the front of the engine are caused by the timing chain beginning to wear and becoming more stretched around the camshaft gears. LH Bank Timing Marks (a) Remove the cylinder head cover (See page EM-25(For 2WD), EM-46(For 4WD)). Because you already have the timing tools use the tensioner looking tool in the tensioner hole in the side of the head to place tension on the jackshaft to camshaft chains. My 99 cavalier had 164,000 miles on it. With the mount removed, the engine must be supported by a jackstand placed under the oil pan. You can either rotate your alternator pulley or crank pulley directly. A098172E05 (a) Remove the cylinder head cover. If the timing marks do not come close to alignment or you do not see any alignment at all, it means the chain has jumped position. The good news is that the factory is fixing it under recall. Page 1 of 5 - Timing chain jumped? - posted in Diesel Engines (Mondeo Mk3): Has anyone had this same problem?? Been informed by garage that this has happened and until they strip the head they won't know the damage also fuel pump gone which is coded to the car ??. replaced the chain and gears, realigned the timing marks and haven't been able to test it. 2010 Green Rincon, 25 inch Big Horns,ss108 wheels,Heated,hand grips and thumb,Reverse Override,ap skid plate guru front and rear bumpers warn 2500 whinch wes rear. 3L owners experience. 3800 gm use labscope to check if timing chain has jumped was created by craig. Hey all, kinda rookie question but how do I check the timing on my 73 302? If it is off how do I ajust it? I've done this on my motorcycle before but the 302 is a bit more intimidating, lol. But it means removing one of the valve covers to observe valve operation. 4 Liter 4 cyl brand new. my bad, diddnt mean to insult you. Dan Caron says: timing chain replacement is easier than it sounds. There are no factory markes to idicate TDC. The timing chain on your vehicle is the connection between the crankshaft and camshaft. 6 V6's by now that have over 100,000 miles on them. The head was. Ifind it hard to beleive that eh mechanic when it had a #4 misfire didn't check the compression on that cylinder right away. Timing Belts vs. Went and installed a new timing chain tensioner. If the engine is cranking really fast and does not sound like there is compression, it is probable that this chain/chains have jumped &/or broken. Check out these symptoms of a bad or failing timing belt most automotive manufacturers utilize a timing chain system that replaces the rubber belt with a metal chain. If you do not have an oil bath, remove the chain every three months. If you suspect a jumped timing tooth it is best to crank the engine over by hand to test it. Timing Chains. To access it, it is required to remove the timing chain cover, which also acts as an engine mount, mounting the engine to the frame of the car. So I shut it off and didn't do too much with it until last month I took off the cover to replace the timing chain and gears and confirmed that it had jumped a tooth and that the cause of this was when it was rebuilt they forgot to put the oil slinger in. Due to the high number of phone calls we receive concerning the fitment and timing of camshafts, we have decided to include camshaft fitting instructions on this website. It was a mechanics special. F-150 Timing Chain Issue Posted by Woobie on 5/10/17 at 8:14 am 0 0 So a while back there was a thread, though there are numerous ones on this topic I couldn't find it in my Post History or Topic Search, about the timing chain issue in the 2013 F-150 Ecoboost. Went and started and the truck began to sputter and shake and the check engine light came on. Retimed engine replaced hydraulic tensioner and all is fine. A good amount causing it to sag quite a bit. I like to have your insights on this issue. There are no more timing tests. Before you can reinstall the timing chains, you need to compress the left and right chain tensioners in a vice. Replacing the timing chain is the focus here, with emphasis on a recent Chrysler Group recall on timing components in the 5. any suggestions anyone. It's a gentle knocking and I am going to try and tighten the timing chain. There are 2 bolts on each secondary chain tensioner to remove those if replacing. Check to make sure all the timing marks are aligned as shown in the illustration on page 26. I'm not sure what could have caused it to get stuck before, but I guess it wasn't the chain. To access it, it is required to remove the timing chain cover, which also acts as an engine mount, mounting the engine to the frame of the car. You should post in the 2nd generation forum to get their feedback on timing chains. the amount of movement you make withyour socket before the distributor starts to move is how much play is in your timing chain. Your six-year-old econobox is starting to show a bit of wear and tear, but. My wife and I purchased a 2010 Chevy Equinox 2. As so many guides including the Audi manual itself states that you have to essentially remove everything, timing belt, bumper, radiator, etc. This specific graphic (How to Check for A Jumped Timing Chain or Belt Of toyota Corolla 2004 Timing Belt or Chain) preceding can be labelled with: , posted simply by masfebriyan on 2017-06-27 14:00:28. The cost to replace the timing chain and guides in my wife's VW is ~$1000 because you have to drop the tranny and I can't do it myself. If the guide fractures, it can break the engine timing chain, resulting in severe engine damage. Timing belts should be changed every 120,000 - 140,000 kms or 75000 - 90000 miles. "burned or excessively carboned valves or a jumped timing chain are indicated" also a special note "a jumped timing chain is often indicated by difficult cranking" If the timing chain jumped why would only those two cyl. She said she owned a 2007 STS-V8 but parted with it after the timing chain broke. The exhaust sprocket has the timing mark machined on the outside. It is quite difficult to give any type of firm mileage at which a chain, sprockets, guide, tensioner, etc. Years 2000 to 2008. Stores are open seven days a week. First, the engine must be at TDC on the timing mark. I have the 3 cylinder 55 hp 1. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your sit. When the timing is correct, put the engine at a somewhat fast idle and pull the timing control lever all the way down. Locking the timing plate screws and checking the timing again is essential to the process of tightening the plates screws will slightly alter the timing position. On my rebuilt motor I was only getting 145psi per cylinder, I had the intake cam off my 1 tooth and the compression jumped up to 170psi. The screen also acts as a filter and a placeholder so the check ball doesn’t fall out. Ford did an injustice to its customers by producing an engine with a camshaft timing chain in the rear that requires engine removal for replacement of the camshaft chain, guide assembly or jackshaft rear sprocket. 1984 300D Turbo, Timing chain Replacement. my bad, diddnt mean to insult you. And now the crank pulley is turning again. If it's a three-wire sensor, check for 5V reference voltage and the ground at the sensor connector with the ignition ON. Because you already have the timing tools use the tensioner looking tool in the tensioner hole in the side of the head to place tension on the jackshaft to camshaft chains. On my rebuilt motor I was only getting 145psi per cylinder, I had the intake cam off my 1 tooth and the compression jumped up to 170psi. Also with the valve cover removed and a spark plug removed you might want to test that the timing is correct. My basic advice is to buy a car with a timing chain and don't pay the $1200 VW wants for replacing a belt in a TDI. Anyway I saw a nice v-6 dakota for cheap (1000$) and in good condition. Possibly air jet or air jet passage. These faulty gears wear out. Durango Discussions 1998-03. Mini Cooper 2007-2013: How to Reset ECU/Check Engine Lights. Those have already been replaced. The first is P0340. the only way to get at the selonoid is to remove the timing chain cover which entails removing the oil pan. The second is 0012, cam timing over retarded-bank1 Cause, 1 -cam timing incorrect 2- vct solenoid stuck open. That requires removal of the timing chains though. Tighten the timing chain tensioner to 55 ft. An errant check engine light can be a source of consternation and annoyance. After years of timing belts, Audi and VW switched back to chains on some of their cars in 2005. a little play is alot of timing. At that point the chain will stretch and eventually skip teeth. Now, I have a pretty good knowledge of vehicles, but I am a classic 60's-70's Ford pick up guy (no hate towards the Tacoma though, that truck has been put through WAY more. I like to have your insights on this issue. It would be reflected on your www. Durango Discussions 1998-03. 7 vortec the timing gun wont work on my truck So i was told by a auto shop that my timing was off 19 %. They'll stretch and retard the timing a little, and maybe throw a code, and if the sprockets get to bad it might jump a tooth. The ford mustang 4. 5L 5 Cyl Replacement Kit Includes: (1) Timing Chain - 168 link, (1) Tensioner - cam chain tensioner, (1) Cam Sprocket - left cam sprocket 58 teeth, (1) Crank Sprocket - 29 teeth, (1) Guide Rail Upper - upper rail at cam gears, (1) Guide Rail Lower - right side for cam chain, (1) Guide Rail Lower - left side for cam chain, (1) Balance Shaft. cap usually go from one term to another, Checj timing. Slide both sprockets (2,3) evenly over their respective shafts and check alignment of timing marks. How to check for a jumped timing chain or belt no start with good spark, fuel and compression. I have an 08 with 56k miles, and am worried that I am sitting on a timing chain time bomb. How Can I Know If My Timing Chain Is Broke - posted in Ford Ranger: I don't get spark, but the distributor still spins. First, the engine must be at TDC on the timing mark. It does this by keeping constant pressure on the guide rail. Even a vacuum gauge could help give you an indication of whats happening. Thanks for the A2A, There are quite a few options. This is something important to know! But that’s okay. It is quite difficult to give any type of firm mileage at which a chain, sprockets, guide, tensioner, etc. Hook up the timing light to the number one cylinder and start the engine. 7 it started to surge like it was missing or not getting enough fuel after about 3 mi it began to loose power and bogg down when i tried to. In either case, you need to pull off the timing belt. Detailed VW Passat timing belt replacement instructions. The timing chain can start to stretch and wear over time, which will cause the engine's timing to be inaccurate and cause a few warning signs. 2 engine - timing chain problem step 1 - 4. Got an odd one for you here. This was done largely on the principle that the chain was to become a service-free item, and therefore was the best situated out of the way. The timing chain guides do just that, guide the timing chain so there is little to no slack in the chain. , should be replaced. Quick internet research indicates timing chain guides are a problem area on the Chevy 2. 4L Timing Chain Replacement Questions. Truck would not accelerate and I took to dealer. The proper camshaft timing must be verified; if a timing belt or chain jumped a tooth, it can cause this code. I just traded the swamper donker for a rancher 420 with a broken timing chain. 3° clockwise from the engine vertical line), by the same amount of rotation as the intake. 1) to determine the cause of the leakage. Use a 19mm wrench to rotate your crank pulley clockwise to your timing set point. Our timing chain jumped on our intrepid 2000 after about a year of ownership, bending the valves. If the chain slop is not excessive it is still possible that you have jumped a tooth especially if it is a rubber timing belt. If this tensioner fails you could have any of the following issues. So I really wanted to understand what was going on when you advance the timing on a dodge v-8 (and more specifically if I could find a way to make a…. Yes, this is pretty rare stuff to be wrong, but it does happen. However , for the new N47 diesel engine, BMW completely redesigned the timing chain setup and relocated it to the rear of the engine by the bulkhead area. any suggestions anyone. I'm not sure what could have caused it to get stuck before, but I guess it wasn't the chain. 0 new timing chain loose ? Pulled down my 01 6. I suspect the timing may be off, which could cause bent valves. You may have to register before you can post: click the register link above to proceed. If the engine is an interference type, it's really important to renew a timing belt before it breaks, or substantial engine damage can occur. 5) Timing Chain Tensioner - Removal. As for the sealsIf it ain't broken don't fix it. How to Diagnose a Jumped Timing Chain 1. But chain jumped and I lost timing now it did start buy very noisy. Test-drive the vehicle and while slowly accelerating listen for any backfiring (popping) noises. he gets a wrench and puts it on the intake cam. Check all tensioner brackets and wear faces. Timm's The BMW M60 M62 and M62TU Engine Scary noises from the top end If you have any of the problems below, read on! • Tapping noises from the rocker covers • Very scary rattling at start-up • A V8 that sounds like a diesel • Heavy knocking under acceleration The modern BMW V8 can make some horrible noises My first BMW V8 was a 1993 730i fitted with the M60B30. Parts replaced at a third party service center will only be reimbursed up to $850 for timing chains and $120 for timing chain tensioners. TSI engines had an early revision timing chain tensioner that was updated. I'm starting the tear down to replace the timing chain on my 01 D 4. After years of timing belts, Audi and VW switched back to chains on some of their cars in 2005. Or there may have been some material that could have got trapped in the mesh causing the chain to jump. I know there are plenty of threads concerning timing and timing chains but I believe mine is different. How Much Does Timing Belt Replacement Cost? | Angie's List. about 20k ago know it has 89k sprockets guides look good. GMC Terrain Engine Problems See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. In over 20 years, I've seen exactly ONE timing chain "skip a tooth"and the engine still ran. Also check for clogged gear or chain lube drains. I had broken chain guides and engine noise but truck drove fine. The timing chain guides do just that, guide the timing chain so there is little to no slack in the chain. it is turning over just not starting ran a scan and it said it was either the cmp or cpm sensor or jumped time. Put the engine to TDC number one piston. how to check for a bad timing chain in 5 minutes the distributor starts to move is how much play is in your timing chain. Jump to content. Make sure everything lines up right , then proceed. For the chain to get that loose you always hear slapping with the chain hitting the timing cover. Hey all, kinda rookie question but how do I check the timing on my 73 302? If it is off how do I ajust it? I've done this on my motorcycle before but the 302 is a bit more intimidating, lol. Checking for "jumped timing" To check for jumped timing: If the distributor was moved, put it back to where it was when the engine was running correctly. For me whenever I see one of these timing chain setups, I think to myself, there must be a simpler way of doing this. Of the vehicles that experience timing chain total failure, the majority are at or above the 150000 to 175,000 mile mark. i know the parts alone are 400 usd and tryin to save some cash if i can. It's best to have instructions on how to do this. The ford mustang 4. Doesn't mean the dowel pin hole is in the right place on the timing gear (should be just slightly past the 3:00 position- about 3:15- when you're dot-to-dot) or that the cam is ground properly to spec. Reference the model year with the corresponding engine to see if your car has a belt or a chain. 6NM (green arrow). Having said all that the seal on mine is seeping again despite all being replaced only a few thousand miles ago!. Re: How to check the timing belt ? ha yea i noticed it was an old thread so i was trying to keep info more "genera" than to that to the specific instance Yea i think ford is a little overly optimistic in its recommended service interval on its timing belts. Joined Jul 8, 2008. I suspect the timing may be off, which could cause bent valves. polo timing chain – 14-03-2009, 01:36 PM Anyone with experience of 2003 polo timing chain jumping a tooth or how to check valve timing as no marks or inspection cover visible? Started badly few days ago but settled down, drove home 20 miles carefully no faults indicated but no guts either. I tell the shop to save me the passenger side phaser. 0 with 240,000 miles. The timing is then changed, resulting in poor performance. RE: timing a 4. What Happens When the Timing Is Advanced It has long been held, and demonstrated at the Club's Dyno Days, that advancing the timing to 13 to 14 degrees before top dead centre (BTDC) is a cheap way of achieving lower rpm performance in the Mazda MX-5 1. Once I have the timing chains off to replace the water pump, should I replace those as well. This would alow the timing chain to jump, which causes the piston to contact the valves in turn bending them. He also ran another check for the codes. In the picture, it shows that the cam is advanced 4 degrees. Id say its the timing chain on its way at first they only do it at idel and as ya pick the revs up it will pull the chain a bit tighter and wont rattle but after a wile the rattle will stay the only ather thing to check is if the harmonic balancer is on tight as the one on mine was not tight and after a wile it lets the bottom gear float in and. The final step before removing the chain is to pull off the timing chain guide. If they are you are ok, if not loosen the screw under the distributor rotor and move the distributor cam just enough to start to open the points. If you have to check for a jumped timing chain, check to make sure there aren't small plastic bits in the oil, and also, you can drop the oil pan, and take a look at if from under there. (c) Check that the timing marks on the camshaft timing sprocket and camshaft timing gear are facing upward as shown in the. If the distributor rotor doesn't turn, the timing chain has broken. I am also showing in this video how to properly align the timing chains on a 2003 Suzuki Aerio 2. Please also check out the statistics and reliability analysis of the 2004 Ford F-150 based on all problems reported for the 2004 F-150. How to replace VW Passat timing belt explained at Blauparts. Engines needs replaced. I went out to grab some lunch the other day and was approached by a woman who wanted to know how I like my STS. It burns not even 1/2 qt. Listen for any abnormal engine noises, with the engine idling, 3. 6L DI engines, but only time will tell. If so, how? Thanks. VR6 timing chain - CarSpace Automotive Forums. i have an 03 ecotec 2. Give me a break, Timing chains stretch out and will fall off over the miles! I'm looking for people who know when the timing chains have started to make rattling noise, or when they actually fell off. Yes a blown head gasket could do that, but you would have tons of white smoke coming out the tailpipe and it would be spewing coolant out the coolant reservoir. the chain itself is probably ok. On your picture, the section on the long guide at the bottom near the crank looks to be getting a little thin, as you can see the dark spot from the metal underneath.