Skip the auto shop - Our mechanics make house calls

Q: fan for ac/heat doesnt turn on unless i hit a pot hole

asked by on

My AC and heater wont turn on unless i hit a pot hole at about 40 miles an hour. The fan doesn't turn on either so i believe its an electrical problem. I was wondering if theres anyway for me to check this my self.

My car has 147000 miles.
My car has an automatic transmission.

A: The vehicle is equipped with fuses and rela...

The vehicle is equipped with fuses and relays to control any of the electrical circuits. To my understanding, you are referring to the control assembly where you activate the heat and air conditioning. The owner's manual will point out where the fuse and relay locations are and you can inspect them for damage for loose connections.

If the climate control is not working and activates when you tamper with these devices, there is a chance the circuit protection is at fault for the fuses or relays. If you want to have this checked, our expert mechanic can come to your home or office to diagnose your AC issue and determine what needs to be repaired.

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: Truck was stolen and ditched now it won't start

If the truck was stolen there could be a number of things causing it to not start now including several anti-theft devices on the truck. I would recommend having an expert, like from YourMechanic, come to your home to diagnose...

Q: How do I connect an iPod to the sound system?

Your vehicle is designed for iPod connectivity. Connecting an iPod is easy: 1. Locate the iPod outlet connector, which is in the center console compartment. 2. Connect the specialized cable to the iPod outlet connector. 3. Connect the other end...

Q: Car overheating and not starting

It is possible that your head gasket may be leaking. When this happens, the pressure in the cylinders of your engine leaks into the cooling system, and causing it to overheat. Another symptom of a bad head gasket can be...

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...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...