Rear main seal

Asked by May 13, 2017 at 01:33 AM about the 2003 Mitsubishi Eclipse GS

Question type: Maintenance & Repair

I have a 03 eclipse 4 cylinder 2.4 non turbo, it was
literaly pouring oil out, rear main seal right, well i do
the work put in the new one, drive around the nlock
and inactually heard it blow out the brand new rear
main seal, what would cause it to blow out, i know
simewhere theres gotta be a plug or somthin
cause thats way yo much pressure, its got a new
egr valve already so what would i check next

2 Answers

86,695

Check the PCV.

105,495

I can only think of two things that can cause this, very high crankcase pressures or a damaged crankshaft. For the high crankcase pressures check,the PCV system, both vacuum and the fresh clean air inlet for blockage. If the blow by is more than the system can handle then it maybe time for an engine overhaul.

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