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.

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....

RE: Won't Start when hot
 

^^ Ignition module would be my guess also.

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.

RE: Won't Start when hot
 

how can i check to see if it's working?