97 xlt won't crank when hot outside

[mc97xlt]

Had a new fuel pump installed a few months ago. Everything went fine. Now, when it gets hot outside, 70F plus...it would not crank. When it gets in to the 50s, then it cranks nice and smooth. Any thoughts? Thanks!

 

[Jstcruz]

Maybe try cleaning your battery terminals?

 

[mc97xlt]

Maybe I chose the wrong words...It does crank forever, but it would not start. There is plenty of "juice" to turn it but the engine would not fire up...The battery is new, terminals are clean.

 

[Jstcruz]

Maybe I chose the wrong words...It does crank forever, but it would not start. There is plenty of "juice" to turn it but the engine would not fire up...The battery is new, terminals are clean.

That changes the game lol. No clue on what would cause that, sorry

 

[daisyrocky]

Same senario here last week, changed TPS same, changed cam position sensor same, changed intake gasket little better but same after 1 day, changed IAC valve Bingo. Started up one shot at all time now and even runs smooth not rough. Caused me a bundle but hope it'll helps you guys with same problem.