Question about 1988 Volkswagen Fox

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Cold start problem

I have a 1989 Volkswagen Cabriolet, 1.8L with 115,00 miles on it. When I start the engine cold it stalls. I have
to hold the gas in (or push it all the time) for a about 1 minute before it will idle without me using the gas pedal. When the engine warms up the problem disappears. Could you help me to find out what can cause the problem? THANK YOU!

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  • sergeo798 Dec 16, 2008

    I've heard about some other possible problems, like cold start valve. Is there any way how I can check which one (check valve, cold start valve or something else) causes this problem before I will actually buy a part? Thank you!



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There are a few things that cause this problem, by far the most common is the check valve in the fuel pump is not working, this lets the fuel drains back to the tanks and causes long cranking times and stalls cold (sound familiar?) the next less common is carbon on the back of the intake valves, and the last is not using the correct grade of fuel, example if your car requires 87 octane don't use 89 or 91 octane it causes cold start problems.

Posted on Dec 10, 2008


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SOURCE: 1989 volkswagen cabriolet engine running great


Posted on Oct 30, 2009

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SOURCE: 1989 volkswagen cabriolet Engine stalls under

Just a shot in the dark... But with the car at idle sray light bursts of carbeurator cleaner on vaccum lines if car revs you may have a vaccum leak, in that vicinity. May not be the problem, but vaccum leaks will cause a dramatic change in car's performance.

Posted on Nov 03, 2009

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