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Search Auto Parts Search coolant temperature sensor may be bad Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> Automotive Wiring and Electrical jowilly Novice May 26, 2011, 4:33 PM Post #1 of 5 (2087 views) coolant temperature sensor may be bad Sign In 1994 chevy corsica v6 3.1 The coolant fan would not come on when the car got to the right temp.I checked the coolant switch to see if I got the right reading when I unhooked it the wireing harness when the car was running hot the fan came on what does that mean? Hammer Time Ultimate Carjunky / Moderator May 26, 2011, 5:10 PM Post #2 of 5 (2081 views) Re: coolant temperature sensor may be bad Sign In It doesn't mean anything. It's supposed to do that. What is the "right temp" that you refer to when you were expecting the fan to come on? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional. jowilly Novice May 26, 2011, 5:45 PM Post #3 of 5 (2076 views) Re: coolant temperature sensor may be bad Sign In the car has been running hot when you are in stop and go driveing but the temp is fine when you are on the highway.I checked the sensor when the car was cold to check for the right resistance on my meter to see if it was bad but I got the right reading.So now what do you thank I should check.could it be a relay switch? And the fan does not come on when the car starts to over heat pass the mid way point on the gauge? Hammer Time Ultimate Carjunky / Moderator May 26, 2011, 5:51 PM Post #4 of 5 (2071 views) Re: coolant temperature sensor may be bad Sign In I think you should leave it alone because there is nothing wrong with it. It is supposed to get hotter in traffic situations. It runs a 195 degree thermostat but the fans aren't programmed to come on until 226 degrees which is above halfway on the gauge. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional. Mr.scotty Enthusiast May 26, 2011, 7:24 PM Post #5 of 5 (2062 views) Re: coolant temperature sensor may be bad Sign In A cars temp gauge can go up even a little over 3/4 when sitting still, as long as it don't go all the way to hot and the fans do come on and doesn't let the temp get and higher the car is fine. -------------------------------------------------------- Your only as good as your tools!   Email This Post   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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