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Head gaskets


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I have an 85 coupe deville... FWD, 4100 engine... recently developed main bearing thump.

My car is at the mechanics to change the headgaskets they havn't started yet so let me verify some stuff here before I waste my money...

I've got coolant running out the exaust... this means they are definatly blown, right? My mechanic quoted me $800 :angry:

I was also wondering how long it is safe to drive it like this if I need too?

Thanks for your help

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I hope the mechanic wasn't yanking your chain by pointing out the moisture that comes out the tailpipe when engines are cold. i always have a little puddle under my muffler joint.

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