1996 trans am cooling fans wont work


Asked by May 26, 2014 at 03:29 PM

Question type: Maintenance & Repair

all relays good all cooling temperature switches changed I can ground the green and blue wire in the harness on passenger side inner fender and they will run on both speeds

8 Answers


unplug at a fan, run car, stick a meter into the wires coming from the sensor and see if any current flows. watch you hands,hair and clothing for moving and hot parts,

2 of 2 people found this helpful.

you'll have to wait for the sensor to detect enough heat tp trigger itself

2 of 2 people found this helpful.

have nothing on current flow I have even changed the computer and nothing will work until I ground one of those wires


it's the switch , plug the wire from the sensor back into the fan and then put a u shaped piece of wire in the two holes, if the fan comes on then it's the switch &/or the thermostat that the switch is connected to,

1 of 1 people found this helpful.

sorry I MISSED A STEP,you unplug the wire from the temp switch after plugging in the other end at the rad, the loose end up by the engine is now disconnected and you are basically completing the circuit with the piece of wire.

1 of 1 people found this helpful.

sorry did that

1 of 1 people found this helpful.

This is hard to explain without pointing my finger to the places I'm referring to. I'm going to to start at the very beginning.1/ there are two wiring circuits to the fan. one is the battery power & the breaker(relay) that protects that circuit. so you know the fan goes and you say the relay is good [ I'll assume you indeed have verified that the relay is good] 2/ then there is a simple switch hooked up to the other plug at the rad. the switch turns on and off because of heat. if you short out the wire up at the unconnected end by the switch - you are completing the circuit with the u shaped piece of wire. By the way - if the u doesn't cause the fan to come on then the relay isn't ok.

My fan it don.t work

Your Answer

Add photo

Related Questions


Looking for a Used Pontiac in your area?

CarGurus has 14,114 nationwide Pontiac listings starting at $699.


Search Pontiac Questions

Pontiac Experts

#1 tenspeed
Reputation 11,250
#2 Tom Demyan
Tom Demyan
Reputation 8,730
#3 Js08016
Reputation 8,030
View All

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.