Skip the auto shop - Our mechanics make house calls

Q: Radiator fan cycles on once then never again

asked by on

Hi, my radiator fan on the driver side comes on once then never again. The passenger radiator fan never comes on. Might be unrelated but I my AC compressor stopped engaging correctly, I'm curious to see if if replacing my AC high pressure switch cures my radiator fan issues. I think that they are oddly related. So weird. The radiator fan fuses look good, and I swapped the relays around. Does the 2009 Escape have a fan motor resistor? If so, can't find it.

My car has 105000 miles.
My car has an automatic transmission.

A: Hi, thanks for writing in. There is a press...

Hi, thanks for writing in. There is a pressure sending unit that is used by the AC system that runs the radiator fans to maintain proper head pressure (mounted on the top of the accumulator). If this unit is defective, the computer goes into a default mode and runs the fans. I would recommend having an expert from Your Mechanic come to your home to diagnose and repair. I recommend having one of our certified automotive technicians from YourMechanic come to your home or office to inspect, diagnose, and repair the issue.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Engine light with gas smell.

A fuel smell should be investigated immediately. As a fuel leak develops, it may leak on hot components which could start a fire. The fuel system needs to be thoroughly inspected to insure there are no hazardous leaks and any...

Q: Smoke coming from blower/fan area

Hi there. The blower resistor and wiring is right there next to the blower and may be what is smoking. I recommend checking the blower wiring and check resistor and wiring to see if something is shorted out. If you...

Q: AC not working properly

Hello, the refrigerant system needs checked for leaks. The belt attached to the compressor should be checked to make sure the compressor clutch engages even if only for second. If all that is good then a set of gauges need...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.