Question about 1985 Chevrolet Corvette

2 Answers

Cooling fan 85 corvette, cooling fan won't come on?

Posted by on

  • Damian Lyman May 11, 2010

    have you checked the fuse if so you can take the fan out and test it to see if the motor works or if it doesn't work

×

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 60 Answers

I had this same problem with my '85. I wired in an aftermarket cooling fan relay that slides into the radiator. It cost about 30 bucks from the local auto parts store and took about 20 min to install

Posted on Jun 10, 2009

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 15 Answers

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

Posted on Jan 12, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Cooling fans won't run on high.


The diagram is a little hard to follow, but it looks like on the high fan relay there are 5 circuits like on the hi-low relay.
Pin 86 is power for the magnet, 85 is the ground signal from the module. The module grounds the magnet to move the contacts.
Pin 30 goes to the fan and pin 87 goes to a 50amp fuse.
Pin 87A is a jumper between the two relays.
The fan motor gets power from three different sources and is grounded to the car. The other two wires are return signals to the module. Kind of like a three way light switch in a house.
On the fan control relay, pins 30 and 85 are hot, pin 87 goes to the fan motor, and pin 86 is grounded by the module.
I can send you the diagram in a separate message if you need to see it.

Jul 28, 2012 | 2005 Chrysler 300

2 Answers

I have a 1999 Alero 3.4 V6 the cooling fans won't run. I checked the fans they both work if I unplug the harness for the temp sensor,the relays and fuses are fine,I replaced the coolant temp sensor and...


CHECK MODE RELAY IF BOTH RELAYS GOOD YOU CAN CHECK RELAY BY REMOVING IT FROM FUSE BOX HOOK RELAY TERMINAL 85 TO BATTERY POSITIVE AND GROUND TERMINAL 86 IF CLICKS RELAY GOOD. IF RELAY GETTING POWER GOOD AND THE 30 AMP COOLING FAN FUSE OKAY.EITHER THERE IS A SHORT IN COOLING FAN WIRING OR THE PCM HAS FAILED.THE PCM HAS LOST OR COMMAND RUN CIRCUIT IN PCM SHORTED OUT DUE TO PCM FAILURE.LET DEALERSHIP OR GARAGE USE DIAGNOSTIC EQUIPMENT TO ACTIVATE THE PCM SEE IF IT HAS FAILED.DONT SPEND MONEY ON NEW PCM COULD BE SHORT IN THE WIRING CIRCUIT

Sep 06, 2011 | 1999 Oldsmobile Alero

2 Answers

I have an 85 corvette. the problem is the air conditioning. I have it on high speed but the air blows out very little like if its on low speed. and the compressor and evaporator is new so what could it be...


If your car has a cabin filter (check owners/service manual) it may be clogged.

You may also have a vacuum leak under the dash causing the vent flaps to not open all the way.

Jun 09, 2011 | 1985 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

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

1 Answer

1976 chevy corvette stingray cooling fan vibrates


Better check to see if the nuts are still tight on your fan.

May 31, 2009 | 1972 Chevrolet Corvette

1 Answer

1976 corvette cooling fan vibrates


Check to ensure that all the bolts holding the fan to the water pump are equally tight.

May 31, 2009 | 1972 Chevrolet Corvette

2 Answers

1992 corvette - cooling fans do not actuate at temperature.


Do the fans come on when you turn on the air conditioner. I do believe the temp switch for the fan is on the passenger side of the engine above the starter.

May 15, 2009 | 1992 Chevrolet Corvette

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

312 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

61168 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...