blown head gaskets? Upgrade? - Page 2 - 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, 09:27 PM   #11
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Quote:
Originally Posted by motorhead
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.
while you are right on the Upper intake failure on the NA cars....the poster would have a difficult time having this problem because his car is supercharged......

do the lower gaskets with the new metal frame ones
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Old 11-15-2006, 09:40 PM   #12
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OK, OK, I'm kicking myself in the head as I type.

Sorry for that, I need to pay more attention to the vehicle description.
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Old 11-15-2006, 11:28 PM   #13
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Try a compression test before you start ripping things apart.
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Old 11-16-2006, 02:33 PM   #14
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engine is hydro locked!!!

now what?
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Old 11-16-2006, 02:37 PM   #15
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Quote:
Originally Posted by SUPRCHRGD
engine is hydro locked!!!

now what?
Was it running when this happened? or simply locked when you went to start it?

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Old 11-16-2006, 03:21 PM   #16
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To "unlock" the engine pull all the plugs and turn the motor over with the starter. However it the leak is bad enough to fill a cylinder, you need to find the cause very soon as there is too much water internally and you have a chance of bearing damage the longer it sits.
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Old 11-16-2006, 05:40 PM   #17
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Quote:
Originally Posted by jr's3800
Quote:
Originally Posted by SUPRCHRGD
engine is hydro locked!!!

now what?
Was it running when this happened? or simply locked when you went to start it?
locked when i went to go start it....


will pull plugs and try to turnover..
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Old 11-16-2006, 09:49 PM   #18
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Honestly, and not to harp on it.. The longer you let that engine sit with water in it, the better the chances that your motor is going to have further problems.
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Old 11-17-2006, 08:30 AM   #19
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drained oil,
My mechanic friend is coming over to take a look and
help fix. if possible... or if it is worth it.
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Old 11-17-2006, 10:15 AM   #20
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Sounds good. Keep us informed and we'll do anything we can to help.
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