Question about 1988 Chevrolet Corvette

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Cooling fan not coming on 1988 corvette new relays and fan works when jumped

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There are two temp sensors one on the pass side turns on primary fan the drives side turns on the secondary fan, I put a switch on mine to turn it on when I want it on.

Posted on Jul 24, 2012

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Replaced the thermostat on the engine it is stuck open

Posted on Jul 29, 2010

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Yesterday my 1988 cadillac eldorado's engine got very hot, even though it didn't overheat and all the fluids are fine including the antifreeze. I only drove around 10 miles. Do you know what might...


DOSE IT HAVE ELEC FAN MOTOR OR MECH FAN IF ELEC ITS THE SENSOR TO TURN TH FAN ON CAN BE JUMPED OUT INCASE OF EMERGENCY IFF MECH FAN NEED THERMOSTAT

Jul 28, 2011 | 1988 Cadillac Eldorado

1 Answer

My 1996 corvette lt1 will overheat while standing,fan does not come on,i have to put on a/c and both fans come on and car cools down to normal.i checked fusesand replaced,thermostat cooling sensor,temt...


U have an electrical issue. If water pump was failing then how in god's creation could the two fans cool the engine down? Check out the circuitry that controls the normal fan operation and you will take care of the issue. Till you find the problem just hot wire the fan motor with an on/off switch.

Jun 22, 2011 | 1996 Chevrolet Corvette

1 Answer

1996 corrvette cooling fans do not come on unless u put on ac. Scanner reads same temp as analog gauge.digital reads[ 0 ] Car will overheat other wise. thank you


sounds like the cooling fan isn`t coming on when its suppose to.if you have 2 fans on the car then the one that comes with the a/c only works with the a/c.the other one works with the engine temperature sensor that sends a signal to the computer that turns on the cooling fan.cooling fans are a common problem with gm`s.with jumper wires you can feed the fan directly from the battery if it won`t work then the fan needs replacing.it could also be the fan relay in the relay box.have you checked the fuses.with it having been on a scanner it should have shown a code for the circuit,as such if there was a problem with the relay,fuse or computer it should have shown it.so i would say its probably the cooling fan motor.

May 09, 2011 | 1996 Chevrolet Corvette

1 Answer

I have a 92 corvette and I have power at the cooling fan relays, but I cann,t get power to the fans. Also the inside heating & air fan doesn,t work either.


mcdevito75 here, At the relays wiggle the wires to see for loose connection, also see if you can jump the fan direct to the battery to see if the fan works., Also the fan relay could be bad, or the temp. Between the relays and fan there is a temp sensor that puts the fan on, jump that and see if the fan works.

Jun 16, 2010 | 1992 Chevrolet Corvette

2 Answers

1992 Corvette cooling fans won't come on.


OK, what you just said is that you checked and/or replaced items in the control system. Now what you need to do is find where the main power that the relay gets power from to transfer to the fan.(and a/c.) Likely a 30amp fuse or fusible link. I don't have that diagram but if you check the circuit that goes to the relay, it will be the heaviest wire going to it. (control system is low draw, actual power needs heavier wire to carry actual load)
If I read correctly, the relay is operating but no power is going to fan or a/c. If relay is not operating, then it could be a problem with the wiring going to the computer, or the computer itself, but computer problem is not very common.

Aug 04, 2009 | 1992 Chevrolet Corvette

1 Answer

Over heats at adle 1993 corvette where are fuses for the cooling fan in my 1993 corvett


The cooling fan relays are located on the upper radiator support in front of the left front wheelhouse.

you have 2 relays for your fan, primary and secondary
their controled by the PCM according to the temperature

Jun 30, 2009 | 1993 Chevrolet Corvette

2 Answers

Cooling fan


the esey fix is run a toggel switch make sure it is a meatel one plastic will melt

Jan 12, 2009 | 1985 Chevrolet Corvette

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