Skip the auto shop - Our mechanics make house calls

Q: Air conditioning is useless now and it’s summer

asked by on

The air conditioning stopped working the other day in my 2008 Toyota Sienna. I really hate when that happens because you only discover a broken air conditioner when it’s hot enough to want air conditioning. The van only has about 85,000 miles on it. It’s been hot all week. What’s the fastest way to get this fixed?

A: Greetings and thank you for writing in with...

Greetings and thank you for writing in with this question! A/C problems can be caused by a number of failed components. Does the vehicle have rear A/C? If so, does the front work while the rear doesn’t? This would indicate that the mechanical portion of the system is functioning properly and that the failure is likely electrical. If the entire system is inoperative, it could be due to a failed fuse, compressor, serpentine belt, belt tensioner, electric fan, or condenser. Unfortunately, when A/C systems fail, the repairs can be expensive. I wouldn’t recommend attempting to charge the system with parts store refrigerant. This could cause further damage to the system and can contaminate the existing refrigerant. The fastest way to get your A/C fixed is to contact a local mechanic (like those with YourMechanic) and have the system inspected and diagnosed.

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: Hi am getting a misfiring in my turbo car but not at all the time

It sounds like you may have excessive water in the fuel of the fuel tank. You should try to put in some dry gas to disperse the water in the tank and try a different fuel station to see if...

Q: Whining noise getting worse over time when I accelerate but no low fluid

Disconnect all accessories, that is remove the drive belts. If the noise disappears, obviously one of those driven components is the source. If the noise remains, it could be due to a vacuum leak, wheel bearing issue or a problem...

Q: Who do you know what to replace the AC compressor or the clutch when it is squeals

Hello. I'm sorry to hear of this. If you are turning on the A/C and you are hearing excessive or unusual noise at the compressor, the drive belt is squealing, the belt jumps, or there is unexpected mechanical resistance impeding...

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...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...