Skip the auto shop - Our mechanics make house calls

Q: Check Engine light on, air conditioner not working, and car stalls

asked by on

My car shakes and then stalls when I stop. My Check Engine light is on, and my air conditioner is not blowing cold air.

A: If your vehicle is stalling and shaking, an...

If your vehicle is stalling and shaking, and the Check Engine light has come on I would recommend having a knowledgable technician, such one from YourMechanic, scan the vehicle for trouble codes. Check Engine lights and engine performance issues may arise for a wide variety of reasons, so trouble codes will often shed light on what the problem may be, sometimes even revealing the exact problem. In regards to your A/C system not functioning, I would recommend first making sure that the system is properly charged of refrigerant. This can be done by using a pressure gauge on the low side port located in the engine bay. Checking and adjusting pressure on a vehicle’s air conditioning system is a task that is vital to the systems proper operation. I would recommend having your vehicle’s stalling issue inspected by a knowledgable technician, such as one from 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・Fair and transparent pricing

Get a quote

What others are asking

Q: How do I bypass the PAT system? Or how do I bypass the anti-theft command controlled by the PCM?

The PATS system cannot be bypassed. You are required to have a coded PATS ignition key in order for the computer to turn on the spark and fuel to the engine. If you do not have a PATS programmed key...

Q: AC compressor not coming on

Your compressor is most likely not coming on due to your air conditioning system being low on refrigerant. When this happens the computer does not let the compressor activate to prevent damage. The refrigerant slowly leaks out over time and...

Q: My Jeep has a full battery but is not starting every time I go to start the car.

Hi there. There are several possible causes for the lightening bolt to remain on. The PCM (powertrain control module) has recognized an electrical fault in the ETC (electronic throttle control) system and disables the starter relay, creating a no crank...

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...
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...
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...