Skip the auto shop - Our mechanics make house calls

Q: AC, speedometer, and windows not working

asked by on

The AC, speedometer and three of the windows in my vehicle are not working.

A: Hello. Depending on how and when these item...

Hello. Depending on how and when these items began to fail will make a difference as to what is going on. If they all occurred at the same time, then I would suspect an issue with the fuse box. It is common for the connections in the fuse box to fail over time due to heat. I have also had issues with the wiring in the dash if it has an aftermarket radio in it. If they all failed at different times then they all need to be checked separately.

The windows may all have bad window motors. I check these by removing the door panels and checking for power at the motors. If there is power when operating the switches then the motors are bad.

The speedometer may have failed due to a bad vehicle speed sensor or an issue with the speedometer itself.

The AC can stop operating from low refrigerant, which is the most common, or an electrical failure. I have seen a lot of compressors fail on this engine.

It will take quite a bit of electrical diagnostics to find these issues. If you plan on having this looked at, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose all of these electrical components and make the necessary repairs.

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: Convertible window glass not going up

The most common failure is the window regulator or motor. Most owners with your problem replaced the motor and regulator to repair the window. I recommend you have a mechanic, like the ones from YourMechanic, come by and diagnose the...

Q: Climate control is not workkng

You will need to see what component blew out all the refrigerant out of the A/C. In the process, it may have blown a fuse to the A/C causing no blower or compressor to come on. If you seen smoke,...

Q: How do I choose the right child seat?

Your child must be in a child seat of some type until they are large enough to use the seat belts properly. The type of child seat used will be determined by your child’s weight, height and age, as well...

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...
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...