Heard a squeak, found a leak - Page 3 - 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 12-10-2010, 11:27 PM   #21
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Nothing'* ever easy. My coolant keeps disappearing. (Good thing I popped the hood when I got to the restaurant!)

No leaks under the car when it'* off or idling, nothing looks wet, and my oil still looks like oil. I'll check for condensation under the oil cap when I leave in case my UIM suddenly cracked.

It'* got to be something I touched, but nothing looks wet.
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Old 12-11-2010, 01:27 AM   #22
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Never mind. I drove back home and saw a spot where the snow wasn't sticking. A taste test says that coolant is dripping from the petcock. It must be dripping slowly enough that I don't notice it until the reservoir is halfway down.

Just to verify, because I normally drain via the radiator hose: do you tighten the petcock valve to close it (like a bolt or a screw), or is it one of those that you can turn in one direction to both open and close (like you sometimes see on some glass pitchers)?

EDIT: I don't recommend tasting coolant. It is highly toxic. I only did it because it was too dark to see green and too cold to smell.
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Old 12-11-2010, 07:03 PM   #23
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It'* tightened like a screw
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Old 12-17-2010, 11:06 PM   #24
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Summary for posterity:

Replaced the idler pulley, and that worked for a couple hours.

Replaced the entire belt tensioner assembly (including coolant elbow), and that worked for a few minutes until the stronger arm stretched out the belt. (Yes, this means I now have an extra idler pulley and bolt.)

Finally, I replaced the belt (like you're supposed to when you replace the tensioner) and all is well.
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