Question about 1990 Volkswagen Passat

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99 volkswagen passat starts, then stalls, won't keep idle

Car starts fine, then stalls. When started I can keep it running by keeping revs up with my foot on accelerator. Battery just replaced this week 9 it died and would not hold charge) alternator charging fine

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  • kaelfi Oct 18, 2008

    No, but when running, voltmeter show just over 14 volts at battery terminals.

  • tony yeatman
    tony yeatman May 11, 2010

    Were diodes in alternator checked

  • Anonymous Mar 23, 2014

    Problem with 1999 Volkswagen Passat Will not start even after replacing new alternator and battery

  • Anonymous Mar 30, 2014

    My 99 Licoln will not hold a proper idle to keep car running when it raining What could be the problem



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I am having a similar problem on a 2003 Volkswagon Passat 1.8L 4 cylinder manual engine. My batter (after 10 years of service) died about a month ago. When the engine is cold and I start it up the engine (if I do not carefully add gas to rev the engine) will idle at around 200 to 400 RPM and then stall. The problem does not occur after the engine has been going for more than about 90 seconds. No check engine light is on. Ideas anyone?

Posted on Oct 05, 2012


Actually "9" was a typo, Meant to be "(it died and would not hold charge)" - didn't hold shift key down - sorry. Battery is holding charge - the old battery was a good 6 years old!. I believe that when the old battery drained it reset the computer code for base idle, I am going to get a scanner on it to see if clearing the code helps - if not possibly the iddle control valve is faulty? (don't know if this year has one, the part is only listed up to 98 model year)
Sorry again for the mix-up


Posted on Oct 21, 2008

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The diodes can drain a battery over night or you have something that is using power when the vehicle is switched off.It certainly sounds like the voltage regulator is the problem and thats inside the alternator.If its fried 9 batteries they are being overchaged and cells collapse.Have you checked to see if any of the fluid has been boiled off.It was probably splashed all over the top of the battery.

Posted on Oct 18, 2008

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