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Won't start after engines warm


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So I did some searching and couldn't find anything similar...

 

My dad's 98 with the 5.7 seems to start and run fine when cold. When you shut the engine off and try to restart when the engine is warm it either takes a lot of cranking to start or won't start at all. Giving it gas will usually get it to start which had me thinking fuel pump but mechanic said pump is fine.

 

Any ideas?

 

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  • 2 weeks later...

Update: I installed the new coil, and that didn't seem to do the trick. In the mornings when the engine is cold, it starts almost before I can get the key turned! I'm going to evaluate whether the ignition module is the next thing to replace.

 

Jon, any updates on your truck?

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Nothing yet. It's my old man's truck. We're dealing with a brake line replacement first then going to address these issues after. Started it yesterday though and it purred like a kitten.

 

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