![]() An option with the catalyst might be to "delete" it depending on local regulations and how the ECM works. As an example of a chain drive properly designed to take torsionals (and the entire output of a turbocharged 2.0 litre petrol engine), look at the SAAB (pre GM) primary drive used on the later 99/900s. The catalyst is a whole other question, I don't see it as being related to the shaking problem. 345 - 421 2013 Volkswagen Jetta 2.0L L4 110,000 miles 580 - 708 See More Last Updated: 12:53 PM Get A Quote 12-Month 12,000-Mile Warranty Why RepairSmith We perform over 600 repair and maintenance services including oil changes, brakes, diagnostics, belts and hoses, and more. pipe at the same time as the chain and associated parts so the total cost of. ![]() There will also be some fluids (oil, antifreeze). that I will need the timing chain replaced in my VW Golf MK5 TSI 122. Serpentine belt and tensioners/tensioners.There will be accessories and seals that make sense to change and you may find that you want to do work on the clutch or renew engine mounts… Be sure to get a good picture of the scope of work that anyone bidding on the project is including in their estimate and also ask about what other items might make sense to replace or inspect at the same time. Keep in mind that projects like this (either at a mechanic's workshop or DIY) tend to grow. From that perspective the estimate from VW doesn't sound too bad. The author of the post said it took him about a week and half to do the work. It's not a trivial project, according to this post, DIY: 2.5l Timing Chain Replacement, from VW Vortex the VW estimating manual suggests about 14 hours for the task and the timing chain parts (in 2011) ran to about $400 and specialized tools costing $200 were also needed. If you are inclined to learn about cars, and have the time to do some work on your car, you might consider doing the chain yourself. The engine shaking is due to something being out of balance, it seems possible that the timing could be far enough off to unbalance the power production and cause the shaking. You definitely want to attend to this, and it is logical to replace the water and vacuum pumps while you are there. ![]() A timing chain failure can cause enough damage to effectively total the car. Timing chain failures are rarer than belt failures, but they are just as catastrophic. That might help you verify the diagnosis. Have you pulled codes from the ECM? Apparently the codes p1340/17748 are associated with timing chain problems. ![]()
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