Skip the auto shop - Our mechanics make house calls

Q: Ignition and AC problems.

asked by on

My key will not turn all the way in the ignition to start the car. Also, the AC blows cold air while stopped, but once I start driving I hear a flapping sound, and then it starts to blow hot air.

A: Hello! As far as the key, there may be a co...

Hello! As far as the key, there may be a component binding inside of the ignition lock cylinder. After years of abuse, a key can become very worn and pose problems when trying to turn the ignition. Since your AC does still blow cold air, the concern may lay with one of the blend doors inside the vehicles HVAC unit. The door's connection may have become worn, or broken, allowing the door to move with the weight transfer of the vehicle. Have a certified mechanic inspect these systems. I highly recommend our trained professionals here at 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

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: Temperature Warning Light on

This light indicates that your engine has exceeded the safe operating temperature. There are many potential causes for engine overheating, from a failed water pump, to a blown head gasket. Whatever the cause, allowing your engine to overheat can do...

Q: How do you get maximum performance from the max A/C setting?

Your vehicle has both a normal A/C setting and a max A/C setting. While the normal setting should keep the interior of your car comfortable on hot days at highway speeds, you may want to use the max A/C setting...

Q: I was driving my passat when the car turned off. There was no power steering and my brakes were stiff.

Hello. Thanks for writing in. The brakes and the power steering both depend on a functioning engine for assistance. Without engine power, these and many other systems fail to work. The brakes will work, they just will not be assisted...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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.