colent leak - 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 01-03-2010, 06:07 PM   #1
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Default colent leak

we replaced the raditatior last summer and the cars hasent been above 200. but today when looking for vacum lines i noticed a leak that im concerined is the LIM gasket. and i dont want to let it get worse and ruin another engine. Heres a pic
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do you guys know what it is ?

thanks
-josh
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Old 01-03-2010, 06:08 PM   #2
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i'm shooting for the UIM gasket and possible LIM
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Old 01-03-2010, 06:18 PM   #3
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While I don't have much experience, it looks more like the coolant elbow to me which is easier to change. But from what I've heard about the LIM and UIM, if they haven't been done before it probably better to do the whole works.
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Old 01-03-2010, 06:23 PM   #4
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have the UIM/LIM ever been done on it that you know of? if not get them done and replace both elbows when ya do
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Old 01-03-2010, 06:24 PM   #5
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That is the coolant elbow.
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Old 01-03-2010, 06:26 PM   #6
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the LIM/UIM have not been done. there is no coolent in the oil. we gave it an oil change yesterday.
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Old 01-03-2010, 06:27 PM   #7
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Easy fix, remove the tensioner and replace the elbows. It'* the O ring that'* leaking. Just make sure you clean up the surface inside the LIM and use a bit of lube on the O ring.
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Old 01-03-2010, 06:30 PM   #8
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thanks guys. i will replace the O rings on the coolent elbow tomarrow.

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-josh
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Old 01-03-2010, 06:31 PM   #9
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I seem to remember the elbows are bout $5 at autozone.
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Old 01-03-2010, 06:35 PM   #10
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cool i love it when things are cheap !
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