Overheating problem

Asked by curtish68 Aug 29, 2021 at 11:06 AM about the 2003 Pontiac Montana Base

Question type: Maintenance & Repair

On my 03 Pontiac Montana overheating problem
I’ve replaced tstat water pump and cap but still
overheating don’t know what to do? No water in oil
no smoke and no leaks but still have a lot of air in
system have bled several times and still
overheating

1 Answer

Guru9L1FVL answered 3 years ago

Could be intake or head gasket but head gaskets were common to go out on those. I'd do a combustion leak test first

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