reading hot but not running hot - 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 11-04-2007, 03:26 PM   #1
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Default reading hot but not running hot

My 97 SE is telling me its running around 260-280 but when it says this it doesn't drive any different and with the hood popped you can tell its clearly not overheating. I replaced the coolant temp gauge underneath the thermostat and the car still says its running hot. Does any one have an idea why its doing this? The other gauges work so its not that the cluster is tweaking out and other then the tranny issues it has the car is running exactly like it did before it started doing this three days ago.

thanks in advance
Andrew
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Old 11-05-2007, 12:37 AM   #2
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Please have the car scanned (free at most auto parts stores or by a local member) and tell us if the gauge and the scantool read the same.
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Old 11-05-2007, 08:46 AM   #3
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Where are you located? Maybe a local member with a full scan tool can assist you.
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Old 11-05-2007, 09:55 AM   #4
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R.I.
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Old 11-05-2007, 10:03 AM   #5
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If are in RI and do not have a chance to get it looked at before this weekend, maybe you have a chance to meet up with a bunch of locals in Natick for a gathering.

I'll have my scanner on hand.

The meet information
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Old 11-05-2007, 02:55 PM   #6
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IRRC, the local auto shops only scan for codes (code reader). I've never been to one that could scan for engine parameters (scanner). You really DO need to hook up with someone who has a scanner if at all possible.

It certainly won't hurt to have a free code scan, to see if you've thrown a code, but a scanner can tell you if you really do have engine temp problems or maybe lead you to bad sensors.
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