How to repair head gasket. on 1990 Pontiac sunbird 2 l
Not a simple task if you've never done it before or worked on cars. You will need to remove the top half of the engine , remove the heads, have them machined, get everything put back together properly and torqued down, and hope it fixes your issue. Something we can walk you through on here. Do some research online, by a Pontiac repair/ service manual try youtube, there might be a video to show you what is all involved.
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