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Dave Nova
Dave Nova, Oldsmobile Tech
Category: Oldsmobile
Satisfied Customers: 597
Experience:  ASE Master Certification. GM World Class Certification
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My 1993 cutlass supreme international 3.4L with 72000 and

Customer Question

My 1993 cutlass supreme international 3.4L with 72000 and the rear main seal leaked. I just had the so entire engine rebuilt but the rear main seal leaks worse, What is the best fix?
Submitted: 1 year ago.
Category: Oldsmobile
Expert:  AZTechBrian replied 1 year ago.

Your rear main seal leaks worse after getting the engine rebuilt? The best fix for a leaking rear main seal is a new rear main seal. There is a TSB outlining the proper way to install the rear main seal using the tool designed for this job. Are you planning on removing the engine to replace the seal?