New member with questions on coolant leaks - 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 12-03-2004, 12:23 PM   #11
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I have a big portion of my TB gasket exposed on the right side due to not having a bolt there but when I try to pull the gasket away from the intake manifold it still forms a seal so I thought it wouldnt leak. Yesterday I saw some fresh coolant on the tranny and was hoping it wasnt from the LIM gaskets which I just replaced so its obvious that its the TB right? There is nothing to do about this other than to get a new upper manifold because the bolt hole in the manifold for the exposed side of the TB is cracked but Im perfectly fine with that. Im getting a new one for Christmas along with my exhaust system but hopefully coolant isnt getting in the intake.
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Old 12-03-2004, 04:39 PM   #12
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Have you put the GM sealant tabs (cooling system suppliment) in the radiator? They may seal it up or at very least slow it down. My TB gasket was leaking and when I put the sealant tabs in there it stopped. I though I was home free but about 6 months later is started again albeit very slowly. I finally decided to change the upper plenum and solved the problem once and for all.
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Old 12-03-2004, 04:41 PM   #13
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Originally Posted by CmptrNerd
Yeah with that throttle body having coolant run through it, it turns into Mr. Ouch after a while of driving. Maybe one can put a solid gasket to keep it from flowing through? OMG I just resurrected a really old thread, haha.
In the future, please don't ressurect topics that are a year old. Please start a new topic.
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