Not warming up enough? - 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 11-22-2007, 02:27 AM   #1
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Default Not warming up enough?

I had the same problem last winter. When it is really cold out, it will only warm up idling. If I'm moving at a steady pace down a road with no lights it won't get any warmer then 130 F. Is this normal? Is there any way to fix this other then cardboard over the rad?

On the other hand in the summer, I had the opposite problem, where if it were moderatly hot out it would climb fast at a light...it went back down as soon as I turned the rad fan on, but still...

I installed a drilled ZZP 180 thero during the summer. It has made no difference...

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Old 11-22-2007, 02:39 AM   #2
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I know its a stupid question but, have you checked your coolant level and is it the correct mixture?
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Old 11-22-2007, 02:44 AM   #3
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Yeah...coolant is full...I have no reason to beleive it isn't the correct mixture. Anyone think a flush may be in line?
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Old 11-22-2007, 10:17 AM   #4
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Have you checked to see if the fluid is moving? My first thought was a bad thermostate, but you said you replaced it. It could be a bad waterpump or blocked waterjacket.
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Old 11-22-2007, 11:19 AM   #5
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Go to either an undrilled 180 or a 195 for the winter...

The engine is not meeting the Coolant temp threshold for the amount of time ran..

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Old 11-22-2007, 11:40 AM   #6
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You may have air in the system. Tech article on this.
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