No Start sometimes

[KevinAltemara]

So I've been having this problem with the 5.2 where it won't start if I just go and crank it, but if I leave the key on run for a few minutes, something near the passenger firewall clicks and then it starts up just fine. anyone have a similar issue?

 

[Shellkamp]

So I've been having this problem with the 5.2 where it won't start if I just go and crank it, but if I leave the key on run for a few minutes, something near the passenger firewall clicks and then it starts up just fine. anyone have a similar issue?

Sounds like a PCM-related issue.

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[Nysm1]

I must agree. Check your PCM for corrosion in the plugs and check the grounds. If nothing else, I'd have to say start looking for a new PCM.

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