Over heating and whit smoke coming from engine

Asked by Sep 03, 2017 at 09:53 PM about the 2001 Pontiac Bonneville

Question type: General

I'm having overheating issue I had to change the
manifold the upper .but it's still smoking whit
smoke and over heating

3 Answers

92,115

Not enough information. Is there coolant in the radiator or do you have a coolant leak?

71,385

Do a compression check on the engine,you may have head damage or blowed head gasket.

73,995

You should replace the plastic upper intake manifold and replace the lower intake manifold gaskets (3.8L). The plastic upper intake manifold should not be reused because they crack. The lower intake manifold gaskets are notorious for failure on the 3.8L and should be replaced. Simply replacing the upper intake gasket is only doing 1/3 of the job. HTH. -Jim

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