Question about 2001 Volkswagen Jetta TDI

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Within one week my 2001 jetta tdi went from running great to being sluggish, and driving uphill on the freeway it wont go past 50mph but on level road it will slowly gain speed. I have just changed out the air and fuel filter in hopes that it would fix the problem but it has not. and my check engine light is on but the diagnostic says that it is a faulty glowplug. also the gears that run the timing belt are squeaking very loudly and it sounds like there is vacuum leak but it sounds like it is coming from the intake right at the number 1 cylinder. also when i primed the fuel filter, i primed it with injector cleaner could they be clogged ? it seems like it isn't getting the proper amount of fuel to operate correctly.thank you

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If the diagnostic says the glow plug is bad, I would start there. Diesel motors use the heat from glow plugs to cause ignition. Goodluck

Posted on Mar 27, 2011

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