Rick's Free Auto Repair Advice

Oil leak Cobalt Mailbu G5

I have an Oil leak Cobalt Mailbu G5

GM reports that an oil leak that appears to be coming from behind the starter motor is actually coming from a leaking oil pressure switch. The leak appears on 2.2L 4-cylinder engines made prior to 2/19/07. GM has issued a new part that holds up better. Replace the switch and clean up the old oil.

© 2012 Rick Muscoplat

Posted on by Rick Muscoplat


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