coolant leak on drivers side - 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 02-02-2009, 02:19 AM   #11
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it is a 93 with 187K
I've been working so much this week I haven't had a chance to see it in the daylight. I have the next few days off so if the wx is good I ought to be able to identify where it is coming from. I never thought the TB would have a coolant passage.

Thanx again
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Old 02-02-2009, 07:48 AM   #12
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Oh, it'* got one just big enough to leak. Seriously,...that'* real. It'* not big enough to think it has any other purpose but leaking.
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Old 02-02-2009, 08:34 AM   #13
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It'* little more then a dent, just enough to warm it up.
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Old 04-09-2009, 03:58 AM   #14
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I had a leak from under the throttle body on my 94. It was not the throttle body; on mine the coolant temperature sensor is under and inboard from the TB. It had cracked, creating a leak. Look for this, if it is the problem, you will not fix it by R&R the throttle body.

It is a simple fix, though it is so far under (inboard from) the TB it is hard to see, let alone get to. I did not actually do the fix myself, so I cannot comment on the procedure to get it in and out. Seems to me I remember you can get to it without removing the TB, but not sure.
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