Overheating problem

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  #1  
Old 06-12-05, 10:19 AM
runninwildin04
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Overheating problem

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I have a 1990 chevy celeberity with a 3.1 (6 cyl) engine. I have an over heating problem. The anti-freeze is circulating thru the radiator. I have replaced the temp. control sensor for the fan and also put in a new thermostat. This problems occurs at idle, or when stopped. I checked and the fan is running when ac is on. Fluid level is filled to proper level also, this is driving me crazy chasing this problem! Any suggestions?
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Old 06-12-05, 03:34 PM
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Location: Ontario, Canada
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The fan should also run after the thermostat has opened and the engine temp reaches 215-220 F or so. Leave the AC off, let engine warm up. If the guage goes up before the fan comes on, then there is a problem with the fan control.

Which temp sensor did you replace ? There should be one for the guage and one for the PCM, which is used to turn on the fan.
 
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