Skip the auto shop - Our mechanics make house calls

Q: I have no heat no matter how I adjust the knobs

asked by on

The heat is not working at all. The air conditioner works good with cold air but no heat. I wonder about the air mix motors. Would both motors go out at the same time? I have tried it on defrost,floor and normal. What should I do?

My car has 145000 miles.
My car has an automatic transmission.

A: From what you describe it may be possible...

Hello.

From what you describe it may be possible that the blend door actuators have failed. If it appears that they may have both failed at the same time, I would first check all of the vehicle’s fuses or relays and make sure that none are bad. If everything looks okay with the fuses then it may be possible that the blend door actuators themselves or the AC switch have failed. If you need help, a technician from YourMechanic can come to your home or office to diagnose your heater problem and replace a fuse or AC switch if necessary.

Regards,

Eduardo YourMechanic

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Check system battery

Your check battery light may come on when any part of your charging system is not working properly. This may be a sign of a weak battery, a failing voltage regulator or failing alternator. As you may know, the alternator...

Q: Dropped a 10 mm wrench inside the engine compartment.

You may not have any worries unless the wrench gets in a place where it makes noise or interferes with vehicle components. The wrench may have fell into the inner fender. You may be able to locate it there. Have...

Q: Actuator not opening trunk

Since the trunk lid solenoid is working, it sounds like the latch or actuator needs to be replaced. There are also two ways to open the trunk if the key fob or dash button don't work. Pull the "T" shaped...

Related articles

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...