LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

coolant temp sensors?

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Old 06-10-2003 | 10:41 PM
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96TurboTA's Avatar
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From: Brockton, Ma
coolant temp sensors?

Ok, my car seems to be running a little hot (210 according to autotap). Which sensor give the feedback for the coolant temp? I put a new sensor in the driver's side head, but that one is listed as a coolant temp switch, so I don't think it's that one. Is it the sensor in the back of the waterpump? Is that the only coolant temp sensor? Any help would be appreciated. The car is a 96TA.
thanks,
Josh
Old 06-10-2003 | 10:45 PM
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Injuneer's Avatar
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From: Hell was full so they sent me to NJ
The temp sensor in the drivers head is for the dash gauge only. Sensor for the PCM signal is in the water pump housing. 210degF isn't warm with stock fan on/off temp settings... 226degF for the first fan, 235degF for the 2nd fan.
Old 06-10-2003 | 10:50 PM
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96TurboTA's Avatar
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Thanks Fred, that was with the fan underspeed settings to 180. I also had my manual fan switch turned on. I took it out for it's first road run tonight with the new 383 and turbo. I've got the intercooler in front of the radiator right now. I didn't dare let it get over 210. That was where it was at when I shut it off. I'm gonna replace the sensor on the pump, and take it out again tomorrow.
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