blown head gaskets? Upgrade? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 11-15-2006, 11:13 AM   #1
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Default blown head gaskets? Upgrade?

white smoke and coolant out the exhaust....

so how much is it going to cost to get the work done?

so what else should i do while she is gong to be open?
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Old 11-15-2006, 11:22 AM   #2
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look like it'* time to do a little port and polish to the sc, tb, intake. Maybe even cook the heads and grind valves and seats.

the most expensive gaskets are the lowers, get the new gm aluminum for around $50. all the other gaskets a cheap.

not sure on head gasket price, I'm sure they will be quite abit more.
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Old 11-15-2006, 11:23 AM   #3
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are you sure it'* a blown head gasket? What brought you to that conclusion?

now I see your edit.
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Old 11-15-2006, 11:30 AM   #4
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Quote:
Originally Posted by sonoma_zr2
are you sure it'* a blown head gasket? What brought you to that conclusion?

now I see your edit.
It is somewhat more likely that it'* your LIM gaskets...
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Old 11-15-2006, 11:31 AM   #5
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Based on club experience, this is most likely the lower intake gaskets and not a head gasket.

I would be inclined to tear off the intake and look for signs of a leak.
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Old 11-15-2006, 11:54 AM   #6
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Quote:
Originally Posted by BillBoost37
Based on club experience, this is most likely the lower intake gaskets and not a head gasket.

I would be inclined to tear off the intake and look for signs of a leak.
i will check when i get home. would this be any cheaper to fix?
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Old 11-15-2006, 11:57 AM   #7
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10x easier.

And I highly doubt it'* your head gaskets. I have yet to see a HG failure on this forum.
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Old 11-15-2006, 05:56 PM   #8
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I'm assuming the car is not being driven at this point and even if it is for some reason, it'd be a really good idea to drain/replace your oil incase it'* contaminated by coolant!
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Old 11-15-2006, 09:23 PM   #9
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It'* probably not head gaskets. Some suggested it could be a lower intake gasket failure, but the most common cause is an upper intake plenum failure. If it is an upper plenum failure, you will want to replace the lower manifold gaskets anyways because they are not too far behind and it'* a lot easier to do them durring an upper plenum replacement.

If this is what the problem turns out to be, make sure you update the lower manifold stove pipe by one of various ways.
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Old 11-15-2006, 09:27 PM   #10
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ummmm....I believe he'* supercharged
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