coolant leak/normal temp? - 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 11-28-2006, 11:55 PM   #1
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Default coolant leak/normal temp?

these might be related, but i'm not sure. I've been noticing my resivoir getting lower, about 1 quart in 2 months. i saw coolant dripping down underneath the t-stat housing, but didn't look like the t-stat was leaking. is there a common leak point there?

also, when driving on the highway, sometimes my car will stay at the hash before the 200 mark, then 1/2 hour later, it will go up to between 200 and the next hash, a whille later(1/2 hr.) it goes back down to where it was before. is this normal? i was thinking sticky thermostat but am not sure.

thanks in advance for your help!

not sure if my sig works, so it'* a 1992 SSE N/A
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Old 11-29-2006, 01:24 AM   #2
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I'm guessing the temperature fluctuation you are seeing is caused by low coolant in the engine. You need to figure out where that leak is coming from and fix it. I see you are in Ames.

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