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Malibu 3.1 Oil Cap Blew off

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Oct 19, 2021, 11:02 AM

Post #1 of 2 (498 views)
Malibu 3.1 Oil Cap Blew off Sign In

I j ust purchased an 02 Malibu with a 3.1 Ltr engine. The engine runs good but the coolant reservoir was leaking and when I replaced it the oil cap for the engine blew off. After looking at it further I discovered water in the oil (was not there before). Also there is not heat coming from the heater. The engine is not steaming nor does it misfire. Any suggestions other than changing the engine.

Hammer Time
Ultimate Carjunky / Moderator
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Oct 19, 2021, 11:12 AM

Post #2 of 2 (496 views)
Re: Malibu 3.1 Oil Cap Blew off Sign In

This engine is known to get coolant in the oil 2 different ways.

1) Intake manifold gasket leaks
2) Blown head gasket or cracked head

Both are pretty common


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