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Submitted 236 days ago...

Botany211

New User (4)

What causes bck pressure in crankcase

2001 crysler sebring limited

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Answer 1 / 2

Submitted 236 days ago...

Botany211

New User (4)

Car got very hot, replaced both heads,1 piston ,car will start but will not stay running and blowes back pressure from crankcase[why]?

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Answer 2 / 2

Submitted 236 days ago...

Rick_

Expert (677)

Bad piston rings let compression leak by the rings into the crank case causing it to build up pressure in the crankcase

This answer was edited by Rick_ 236 days ago.

Reason: opps

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