Question about 1994 Geo Metro

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Car shuts off when getting up to running temp.

I have changed the fuel filter. I can let it sit in the yard and run all day, as soon as I start to drive it, and it gets up to operating temp it sputters and shuts off. It will not restart. As soon as the car cools off it starts and runs fine. Any Ideas?

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All I can say is that I had the same problem. It turned out to be a Temp problem with the distributor.

Here's what I did to catch the culprit.I started it and let it run in the yard. Then I took a hair dryer and applied heat to various components. When I got to the distributor with the hair dryer, and left it there for a few minutes it sputtered and stalled. I then applied some ice cubes in a towel to the distributor and it started right up. Replace the distributor with a junk yard distributor and it ran several more years.
As a retired electrical engineer, my theory to what happened is this. as the temp rose one of the transistor leads inside the transistor lifted off its connection and broke the circuit when I cooled it down with ice it made contact again.

The tough part of this is to isolate the problem.

Good luck, Hope this helps Loringh

Posted on Oct 23, 2008


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