Question about 1994 Volkswagen Passat

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At idle the tachometer is not stable,it fluctuate between 2000rpm and 1000rpm. moreover when driving,sometimes when I accelerate it does not pick unless I remove my and re-depress the accelerator pedal again before it pick. my engine uses carburetor.

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Posted on Jan 02, 2017

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SOURCE: VW Golf 1 - Idle problem

exactly same problem on mine m8.....a good service fixed the air filter, oil, oil filter, spark plugs, distributor cap, rotor. when i took the air filter out and looked at the air flo pipes they were clogged up with white gunk....means the engine wasnt breathing rite. i cleaned it with break cleaning fluid. i dnt no which 1 of these solved the problem....but my guess wud be the pipes

Posted on Mar 04, 2009

  • 166 Answers

SOURCE: 2000 VW Jetta V5 accelerator/idling problem

these cars are fitted with a fly by wire accelerator pedal that is controlled electronically by the cars computer it is possible that there is a computer problem or the throttle body ( air intake system )or accelerator pedal is playing up.
it is highly possible that the car is doing exactly what you say it is i recommend you take it back to VW and demand that they take a proper look at it you might have to leve it with them for a couple of days and get a service advisor to drive it home so as they can see the problem ocure.
regardles the cars computer should of thrown a code declaring a fault in the system witch should give the tecs some were to start looking.

good luck with this problem if you have any outher questions let me no

Posted on Dec 19, 2008

  • 158 Answers

SOURCE: slipping clutch?

it sounds like thr clutch has burnt out does it smell when you are drivind if so you need a new clutch , pressure plate & through out bearing good luck

Posted on Mar 15, 2009

  • 9 Answers

SOURCE: Golf 4. comfortline 1.6. 2002 model.

the hunting can be caused by leaks in the intake system.
these can usually be heard with the engine running & bonnet open and a hissing sound especially when blipping the throttle.
also check the crankcase breather hoses which go from the oil filler cap to just behind the coil pack, they are prone to cracking.
re. the acceleration, ther could be a problem with the throttle control unit.this is the unit the accellerator cable is connected to.
a scan with a diagnostic tool will tell you if that is the problem.

Posted on Aug 28, 2009

  • 3489 Answers

SOURCE: check engine light p0411 code what must i do

this has to do with your secondary air injection incorrect flow. start looking for a vacuum leak especially around the air duct from the mass air flow sensor to the throttle body.

Posted on Jan 25, 2010

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)The fact that thge engine idle fluctuates when it is cold indicates that the Fast Idle THermo Valve is out of adjustment.
This valve is located ot the front of the intake manifold on the driver's side just below the accelerator cable. To adjust it, wait until the engine is cold (best to do it first thing in the morning).
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