Question about 1994 GMC Sonoma

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1994 sonoma stops running when it warms up

I have a 1994 GMC Sonoma 4.3 V-6 with 244000 miles on it. The vehicles stops running once it gets to operating temp. and will not start on its own untill it gets cold again. If I put fuel down the throtle body it will start back up but I must keep the RPM up aroud 1500 or so for a while or it will dye and I will need to prime it again. I replaced the fuel pump and filter at about 120,000 miles. I again replaced the fuel filter about 10,000 miles ago. Any idea?

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Sounds like a bad map sencor

Posted on Nov 26, 2008


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