Question about 2000 Volkswagen Jetta TDI

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Lack of power and black smoke from exhaust most of the time. Service engine light is on.

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O2 sensors need to be changed.

Posted on Jul 19, 2009

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It could be any number of things - the o2 sensors are not your problem. Unless you get the codes read, you won't know what it is. The codes will give you (or us) a pretty good idea of what your problem is. It could be MAF, Timing, a clogged intake, clogged fuel filter, intercooler pipe... You get the idea. Do yourself a favor and take it to a place that knows about TDI's. Find someone here:
www.tdiclub.com

Posted on Jul 20, 2009

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Take it to an AutoZone car parts store, they can read the engine codes for you, FOR FREE! Then go from there. Or go to the dealer-
A number of things can do this to these diesel engines. Plugged air filter, bad fuel (Bio Diesel is a neat thing, but if inproperly used can cause severe damage to a diesel fuel system! FYI), bad fuel injector or injectors, plugged or frozen turbo, etc., etc!
Worst thing that can be done to these TDI's is drive 15 min then shut off, never allowing to get to operating temperature! This can cause the exhaust system to "Soot" up like a chimmney that is burning poor quality/wet wood! Very expensive to fix too! These cars need to be driven hard, allowed to get to temperature, etc. "Blow out the carbon" once in awhile, say on a freeway on ramp, hold it to the floor in 3rd, and 4th gears, take it to 4-4500 rpms! Watch the exhaust come out the back! Be surprised how much carbon can build up in one of these-

How many miles are on your vehicle?????? Is it driven in town, or on the highway alot?????

Posted on Jul 20, 2009

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