The engine is over heating because the fan is not working. I know for a fact that the fuse, relay and the fan motor are good. When I turn on the air conditioner the drivers side fan comes on but the passenger side fan doesn't come on at any time. When I hot wired the passengers side fan it will work. It must be some kind of sensor or similar part. I need a wiring diagram of the electrical circuit of the fan motors for the passenger side & drivers side circuits.
Check the fuse
Testimonial: "It was the coolant temperature switch, thanks for your answer"
Temperature thermo switch faulty
Testimonial: "That was it , thanks"
Wiring short--failed connection --the coolant sensor controls fans ie a/c goes on secondary fan comes on -- https://www.google.com/search?rlz=1C1CHBF_enUS812US812&q=2014+malibu+wiring+diagram&tbm=isch&source=univ&sa=X&ved=2ahUKEwiM0Y_X_rvjAhUrn-AKHfY4A5AQsAR6BAgFEAE&biw=1600&bih=789 or sign into autozone.com and search their diagrams
I agree with the others. It appears you two coolant temp sensors, one is in the water outlet, in the picture. #9 at top right, you can see the plumbing that goes down to water pump. The other one is in the radiator. Sometimes with sensors, a bad signal is worse than no signal at all. No signal and the computer may use a default signal which is better than bad signal. Some makes and models, if you turn on the ac the fan will run. If you unplug the cts, the fan will run. Now, whether one or both fans should run?
Testimonial: "Here is what's been done, I took the coolant temperature sensor plug in off with the engine running & the drivers side fan came on but the passengers fan didn't come on but when I turned the motor off the drivers side fan kept running, had to remove the fan fuse to stop the fan from working. Do you have a pictorial view for the radiator coolant switch that you were talking about. Send the one with the radiator coolant switch similar to the picture you sent here that has the sensor near the water pump if u don't mind, Thanks"
CHECK THE SENSOR... IF YOU CAN DO A SCAN TO FIND THE CODES.
Testimonial: "It was the coolant sensor, thanks for your answer"
I disconnected the plug in to the coolant sensor & drivers side fan came on but the passengers side didn't come on while the motor was running
no check engine light was on prior to disconnecting the coolant plug in
PERHAPS THE FAN IS BROKEN , CHECK IT MAYBE YOU NEED TO REPLACE IT
when the fans are hot wired they work
TO CHECK FANS TURN THE CAR ON THEN TURN ON A/C FULL BLAST THEN THE FANS SHOULD START TO COOL OFF THE RADIATOR .
the drivers side fan works the AC is turned on but when it's off it doesn't work
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Likely a bad coolant temp sensor
Testimonial: "Where would that be located? I need to know exactly where that is. Thank you"
would it give a coolant sensor check engine code
Maybe- some give a code if theres a complete fault (broken wire). But if the sensor is just sending the wrong signal, the computer wont know.
ok, are there any more sensors in the circuits that controls the fans besides the coolant sensor, if so, do you have a picture of the circuits ? There are no check engine codes.
Scott, it was the coolant sensor,ti was hidden down in the motor, hard to get to but it's fixed now, it has a u shaped clip that holds it, thank you here is an image of the coolant sensor below
this coolant sensor is located the drivers side of the motor
Well done!
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SOURCE: 2000 cavalier---2.2 standard------cooling fan not
Cooling fan relay under hood..Above left tire. In Fuse box.
where is the cooling fan relay located on a 92 taurus
SOURCE: blower motor not working for
I've had this problem before too...first check to see if your fan can be rotated by hand (make sure the car isn't running while checking). If you can't spin the fan by hand, then you need to replace the fan. The cooling fan has a 40A fuse in the fuse box under the hood (driver's side). If your fan has siezed, it will trip this fuse too.
SOURCE: 1997 Malibu DTC P1652
u need a data stream run on car that displays values for a tech to decyfer--code scanners dont cut it--factory equip at a private shop does----like the magicmechanic online--send him this issue
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