Question about 2001 Volkswagen Jetta TDI
Recently started making a noise when at idle, below 1000 RPM's.. sounds basically like my exhaust (some after market one that was on when I purchased) is loose, but the sound comes from my engine. Auto supply shop suggested a valve, but haven't been able to get into the shop yet. Sound is intermitten.. usually starts if I drive at high RPM's and then idle at a light... gets worse with AC on.. if I shift below 3 or 4000 RPM's engine runs fine for the most part.. just a little rough every now and then. Any ideas on problems and price ranges for repairs?
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Posted on Jan 02, 2017
SOURCE: 2000 VW Jetta VR6 My
You may have a bad coil pack - try moving two of them around and see if the misfire follows the coil pack or stays at the same cylinder. If it follows the coil pack, get a new one. If it stays in the same cylinder, inspect your spark plug wires and make sure the plug is gapped correctly.
Posted on Aug 09, 2008
Best way is to get the fault codes read using a £15 interface cable and VAG-com software (£free) on a laptop computer. It will save you money. In the meantime, have you removed and examined the spark plugs?
Hope this helps you a bit. If it does, a "Fixya" rating would be much appreciated. If it doesn't
help you, I'd be grateful if you didn't bother with a rating at present - they can't be increased later if I do manage to solve your problem! Just come back and tell me what you found. Cheers, D
Posted on Dec 03, 2008
It could be an exhaust restriction. Do you have a vacuum/pressure guage? If so you can check this at the DPFE sensor hoses. This will be either a black or a silver sensor at the back of the motor with a 3 wire connector and two rubber hoses hooked to the bottom of it these rubber hoses then hook to metal lines that go down to the exhaust. Unhook one of these hoses at the sensor then hook up the vacuum/pressure guage. It should read less than 1 psi at idle and 3 to 4 psi at wide open throttle. Any thing more is an exhaust restriction.
Posted on Jan 31, 2009
Don't "wash" the motor, like you wash the outside. Did you pressure wash it? God people are too freakin anal retentive and go screwing up their engines. Next time use engine cleaner and try not wet any wiring harnesses or anything electrical. You probably killed a sensor connection or something.
Posted on Apr 20, 2009
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