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I HAD THIS SAME PROBLEM AND FOUND IT TO BE THE COIL WIRE. IT WAS HEATING UP AND BREAKING CONNECTION. From txbasshound: If you figure it out, let me know. I have a 1994 Cheyenne P/U that's doing the same thing. Acts like it's still trying to choke it. Have replaced the thermostat and the coolant sensor and still is doing the same thing. Was told by a shop that the ECM thinks the engine is still cold even after it's warmed up. I'm still working on this so if I come up with anything, I'll put up a post.

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โˆ™ 2009-03-11 13:48:32
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Q: 92 Chevy pick up starts fine when cold once warmed up RPM's go up and truck stahl and then can't start again until cool off What can cause that?
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