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Why does your cooling fan not work on your 1986 Trans Am. I have replaced cooling sensor fan relay switch and AC clutch control switch the fan works when AC is on but not any other time?
Wiki User
∙ 15y ago
Check to see if you are getting power to it with A/C or defroster on
Try Hot wiring the motor to see if it is defective
Check fuse and relay
Check temperature sensor switch XXXXXXXXXXXXXX ANSWER XXXXXXXXXXXXXXX The temperature sensor works the light or gauge. The cooling fan switch works the cooling fan. If, when the air conditioner is "ON," the fan works then there is no need to hot wire it. If the coolant is low in the radiator and isn't contacting the switch, then the fan will not work. Open the radiator cap and be sure the coolant is full. You can have a full recovery tank and a low radiator and the coolant will not transfer.
Wiki User
∙ 15y ago
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What can make a car run hot if you have replaced the thermostat?
The electric cooling fan or cooling fan temp sensor may be faulty.
What could cause the cooling fan to not work after the thermostat was replaced in a 1992 Ford Escort?
There is an engine temperature sensor that operates the cooling fan.
Why does the cooling fan of a 95 Escort Wagon 1.9L keep running regardless if the AC is on or off?
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you might want to check for a blown head gasket or a cracked head or block. espically if it loosing water out of the radiator with out leaking on the ground.
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Idk. I replaced the thermal sensor on mine I also have a 98 jetta didn't work. So it's either the fan switch or the control module fan relay.
Does a knock sensor have to be replaced?
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What is wrong if the cooling fan comes on when the coolant sensor is unplugged but when it is plugged in the fan and AC will not work?
I have seen this before more than likely your coolant sensor has a internal short and needs to be replaced.
Why does not radiator fan run when ac is of on an 2001 Ford crown Victoria p71?
Hard to understand your question! First, on the crowns with clutch fan and electric fan. When the a/c is off, just the clutch fan will run, if not then have it replaced, when the engine gets too hot then the electric fan will start, if not have the sensor replaced, or check the fan. When you put the a/c on, the electric fan will start, and the clutch fan will stop. Both are temp. sensitive. If the electric fan is always on, then the clutch fan will not turn. Have the sensor checked. I hope this covers your problem.
93 Grand Am Should the electric cooling fan come on when the engine is started?
In my experience, most electric fans come on when the coolant temp sensor signals the computer to start cooling when the car has run up to temperature. Another factor is the fan relay/fan relay control module. I think just the fan clutch type start up with the engine.
Where is the cooling fan swithch on 1997 Ford Escort?
The sensor that turns it on is on the water outlet. This sensor sends information to the Power Control Module (PCM) and it in turn sends a signal to the Constant Control Relay Module (CCRM) under the intake housing which turns on the cooling fan on high or low depending on if the A/C is on.
Where is the sensor that controls when the electric cooling fan comes on a 1989 jeep Cherokee 4.0 auto?
Cooling fan operation in determined by the Powertrain control module using inputs from the Coolant temperature sensor and A/C request signal from A/C system.
