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Dave Nova
Dave Nova, Cadillac Technician
Category: Cadillac
Satisfied Customers: 1522
Experience:  ASE Master Certification. GM World Class Certification
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Why when starting the engine, oil goes from the oil pan to

Customer Question

Why when starting the engine, oil goes from the oil pan to the coolant overflow tank ? The head gaskets have been changed, and I also get a reading P1890,P1700 .
Submitted: 1 year ago.
Category: Cadillac
Expert:  EricFromCT replied 1 year ago.

Hi. Are you sure it is engine oil and not transmission oil?