Cooling Fan Problem

Ratpack
125

Asked by Ratpack May 15, 2010 at 08:29 PM about the Chevrolet Corvette

Question type: Maintenance & Repair

Our electric engine cooling fan comes on at cold start up and won't shut off unless I unplug the relay. The wiring gets very hot at the relay plug. Is the relay stuck in fan 'on' position?

2 Answers

Ratpack
125

Changed out both the Coolant Temp Sensor located in the front of intake manifold, under the throttle body and the Fan Relay ahead of the battery on the drivers side fender. Also replaced the Temp Switch on the passenger side head. She's running cooler and the Fan kicks on between 238*-240* in traffic and 190*-195* while cruising.

2 out of 2 people think this is helpful.
califcarson
3,755

Your thermostat switch may be bad, and will not shut off. I have a gable fan in my house, and I removed the thermocouple switch because it wears out and overheats the wiring causing fires. Not in my house. I have a switch I use. In my Corvette I have my electrical fans bypassing the relay to run when the ignition switch is on. It does not overheat the wires, or keep the car too cool. I have the motor built up to put out over 100 more horse power that stock and it runs hotter anyway. I have a 160 thermostat which on the freeway runs about there. In town it goes up to 180.

Your Answer

Add photo

Related Questions

  • What is avg water temp and at what temp should fan turn on?? 2 answers

    Just bought car - drove to FL via I-95, water temp avg'd. about 201-203, when in stop/start traffic, temp was about 207-208. Fan did not turn on. Took to mechanic - he put in new sensors - mech said...

    1995 Chevrolet Corvette

    -

    Maintenance & Repair

  • How can I fix my overheating problem? 5 answers

    Hello, I have a 1986 corvette that keeps heating up and I have tried everything. I've literally changed the thermostat, radiator, hoses, water pump, checked for timing, fuel injectors, and practically...

    1986 Chevrolet Corvette Coupe

    -

    Maintenance & Repair

  • Car overheat in traffic 6 answers

    My car overheats when I drive slow or sit in traffic. If I switch it off it will not start for about an hour. I tested the fan and it works but I’m not sure where to find the switch that controls the ...

    1991 Chevrolet Corvette Convertible

    -

    Maintenance & Repair

  • 1986 corvette overheating problem. 25 answers

    My corvette is overheating after replacing the gaskets on the intake manifold and cleaning everything else out. I replaced the thermostat, fuel injectors, IAC. I put it all back together and it starts...

    1986 Chevrolet Corvette Coupe

    -

    Maintenance & Repair

  • 95 corvette over heats when sitting 4 answers

    i have replaced water pump, temp sensor, changed radiator to 3 core, and replaced relays still no luck. fans only come on when my a/c is on im stuck please help

    1995 Chevrolet Corvette Coupe

    -

    General

Search Chevrolet Corvette Questions

Chevrolet Corvette Experts

#1 carGrrl
carGrrl
Reputation 870
#2 Tom Demyan
Tom Demyan
Reputation 760
#3 califcarson
califcarson
Reputation 560
View All

Related Models For Sale

Used Chevrolet Camaro"
593 Great Deals out of 28,177 listings starting at $1,795
Used Ford Mustang"
1,046 Great Deals out of 25,221 listings starting at $1,329
Used Porsche 911"
145 Great Deals out of 3,216 listings starting at $12,995
Used Dodge Challenger"
325 Great Deals out of 18,387 listings starting at $11,497
Used Ford Shelby GT500"
35 Great Deals out of 552 listings starting at $24,799
Used Dodge Viper"
5 Great Deals out of 255 listings starting at $19,488
Used Mercedes-Benz SL-Class"
106 Great Deals out of 2,496 listings starting at $4,250
Used Dodge Charger"
639 Great Deals out of 30,853 listings starting at $2,950
Used Nissan 370Z"
46 Great Deals out of 2,339 listings starting at $14,981
Used BMW 3 Series"
1,113 Great Deals out of 36,874 listings starting at $1,200
Used BMW M3"
101 Great Deals out of 1,389 listings starting at $4,991
Used Chevrolet Silverado 1500"
2,565 Great Deals out of 168,575 listings starting at $950
Used Porsche Boxster"
83 Great Deals out of 1,672 listings starting at $5,000
Used Jeep Wrangler"
959 Great Deals out of 44,750 listings starting at $1,800
Used Ford Mustang SVT Cobra"
15 Great Deals out of 282 listings starting at $5,500