2003 Dodge ram 1500 5.7L V8 over heated

Asked by Debbie Jan 14, 2018 at 01:24 PM about the 2003 Dodge RAM 1500 ST LB RWD

Question type: Maintenance & Repair

Hi my truck overheated and not it won't start it
cracks and it will start if I give it gas and hold it but
rpm gos really high then oil cap flys off and it turns
off how can I fix what can it be

1 Answer
101,755

KenF answered 6 years ago

I'd perform a compression test, something is causing some extreme pressure buildup in the crankcase, might have a bad piston ring, or hole in a piston. Should check PCV as well. You always have some blow-by gases in the crankcase, which usually get sucked back into the engine and burned via the PCV/breather system. Check the oil condition, a bad PCV may result in a milky looking residue around filler cap or in oil.

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