Skip the auto shop - Our mechanics make house calls

Q: Radiator fan asembly/motor

asked by on

About 2 weeks ago my engine failed to cool an overheated. Upon inspection I became aware at that my fan was not turning on. My AC would also quit working at a stop. I checked all of the fuses and relays. After cleaning the connectors it worked for another 2 weeks. Now it is stopped working again. I went to the auto parts store and they let me use a new relay in the three plugs and it still did not work. I checked with a 12 volt there is no powerr going to the fans. My question now is where do I go from here? How do both Motors go bad at the same time? I can freely spin the van that I can reach it will spin when I'm driving down the road and that keeps the engine cool and the AC will work as long as I am moving. I don't want to bring it to the mechanic without because I cannot pay costly exploration hourly fees.

My car has 97000 miles.
My car has an automatic transmission.

A: The cooling fans have three relays for the ...

The cooling fans have three relays for the two fans and different fuses which are all controlled by the engine ECM. You will need to make sure all the fuses are not blown and that the relays are good or have been replaced. The computer will turn on the fans at different times depending on if it is for temperature or when the A/C is on.

The wiring diagram is too complicated to try and explain and a mechanic can follow it to diagnose the problem for you. You may have a bad fuse or relay or even a defective ECM. I would still recommend having a mechanic test and diagnose the fans and AC system before you overheat the engine and damage it. The alternative would be spending money attempting to repair the wrong component. This would cost a lot more than an hour or two diagnostic time.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Temperature gauge goes up and down

Hello. If the coolant temperature gauge is constantly fluctuating then the most common cause of this is a bad thermostat. If the thermostat is sticking or not opening and closing right then this will occur. It can also be a...

Q: Car died and won't start

I would look at the battery first. The battery may not hold a charge anymore. The typical age of a battery is 6 to 10 years, depending on what climate you live in. When the battery dies it will no...

Q: Excessive oil consumption and sooty exhaust

Hello there, A few different items can cause oil consumption. The most common is oil leaks, valve stem seals, PCV faults, or engine mechanical issues. Porsche 911's are known to have some oil consumption that is considered normal due to...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...