Won't Start when hot

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Dec 29, 2007 | 01:43 PM

dmc919

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Won't Start when hot

I just bought a 94 s10 blazer with the 4.3. My problem is when it gets hot that it wont startup. Turns over just fine and i hear it stumble a little like it wants to start. When it's cold i dont have a problem. also if i put some either in it when it's hot then it'll start right up.

Dec 29, 2007 | 07:52 PM

2002XTREME

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RE: Won't Start when hot

Ignition module??? under the dist rotor, Just a thought,, I know that used to be common in older cars....

Dec 30, 2007 | 01:59 AM

Chevy Lover

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RE: Won't Start when hot

^^ Ignition module would be my guess also.

Dec 30, 2007 | 08:50 AM

swartlkk

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From: Waterloo, NY

RE: Won't Start when hot

I too would suspect the ICM.

Not sure where it is located on the 1st gen motors, but on the 96+ motors, it is located near the passenger side valve cover and has a heat sink on it. Most common with these is for the thermal paste to dry out, prohibiting the transfer of heat to the heat sink, overheating the unit.