coolant 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 10-26-2002, 08:16 PM   #1
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Default coolant leak

I need help trying to identify the cause of my leak. The leak appears to come from below the throttle body and air mass sensor connects to the air intake plennum. At first I thought the thermistat gasket was leaking, however under closer inspection, it looks as if it is leaking just above it at the air intake plastic plennum. Has anyone seen this, and what do you think is the cause?
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Old 10-26-2002, 08:40 PM   #2
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Uh, oh. I think you may have bad news, but then, I'm drunk....

I dont have the funny plastic thingy on top of my engine, I have the blow dryer (commonly referred to as the supercharger) HOWEVER, I've heard enough of the normally aspirated NA guys bitch about this. You running a 180 thermostat yet? Probly not, cuz I think you just cracked the intake. You're talkin about 3-4 hundred bucks, I think. Dylansdad was the last guy to go through this, you might want to PM him. Deathrat'* a pro at this, but if you wanna talk to him, you'll have to find him over at bonneville intensity. jrs3800 would be another great resource here.

so your desperation level should be directly proportional to the severity of the leak.
Let'* see what comes out of this.....paging all NA guys.......
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Old 10-26-2002, 09:37 PM   #3
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DAMN , thats a problem change the intake gasket before it get'* into the cylinders ( and it will ) and you have a engine stall!!!
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Old 10-26-2002, 10:03 PM   #4
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I'm pretty sure the gasket aint the prob. I think his intake is cracked.
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Old 10-26-2002, 11:54 PM   #5
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Yes, I did just finish the intake job on my series II......time consuming but not too bad.....go to GM parts direct, gasket $30 shipped, the intake was $168 and some change..good luck, but you better get to it..........
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