Skip the auto shop - Our mechanics make house calls

Q: When I turn on the AC, the malfunction light comes on and the car doesn't accelerate well and starts jerking.

asked by on

When I switch on the Air Conditioning after a while the engine malfunction light comes on and the car doesn't accelerate properly.sometimes even jerking...when I switch off the AC the car works fine but malfunction light is still illuminated.

My car has 10800 miles.
My car has an automatic transmission.

A: The trouble code stored in the vehicles com...

The trouble code stored in the vehicles computer may shed some light on what’s going on. Turning on the AC adds an extra load to the engine and the computer picked up some trouble when the data figures changed. Consider hiring an experienced technician with a professional scan tool like one from YourMechanic who can come out, read the check engine light codes and observe the vehicle data to offer a more personal diagnosis.

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: P0206 and P0207 showing up

Hello the codes P0206 and P0207 indicate faults in the fuel injector circuitry for cylinders 6 & 7 respectively. It means the engine management computer detects an electrical fault. This may simply be a bad electrical connection, or failure in...

Q: Key replacement I lost my key

The best thing to do in this situation is to contact your local dealer and supply them your vehicle ID number to see if they can identify and cut a new key from their files. If they're unable to do...

Q: Car cut off won't start

Hi there. It's possible that you might have an ignition system component failure, such as a worn out crankshaft position sensor or cam sensor, that will impact the vehicle's ability to start when you turn the engine over. It's also...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...