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1999 Volkswagen Jetta Stalling during accerlation

Tiny
MRSNIPNYCE
  • MEMBER
  • 1999 VOLKSWAGEN JETTA
  • 2.0L
  • 4 CYL
  • AWD
  • AUTOMATIC
  • 90,000 MILES
I have 1999 VW Jetta with about 90,000 miles on it, my question is car will run fine for about 20 mins but then begins to sputter and just stall. We have taken it to a mechanic who has replaced fuel pump, fuel pump relay, cam sensor and also maf sensor car is still doing it. No check engine light absolutely no lights at all actually. Our mechanic is baffled and doesn't know what else to do. Can you possibly help with some ideas that we have not tried yet? Thankyou in advance.
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Wednesday, July 22nd, 2015 AT 6:44 AM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,883 POSTS
One possible suspect is the pickup screen in the fuel tank is collapsing. The clue is the engine starves for fuel after about ten miles, then, after sitting for a few minutes, the screen stretches out allows fuel to flow again for another five or ten minutes.

The best way to approach this is to connect a scanner with a "record" feature. A button is pressed, when the problem occurs, to record about five seconds of sensor data. Later, the mechanic can replay the events slowly to see what changed. That will give him an idea of where to start looking.
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Thursday, July 23rd, 2015 AT 11:31 AM

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