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・Fair and transparent pricing

Get a quote

What others are asking

Q: Tires grinding when I turn left or right

This is probably something that needs to be looked at as soon as possible. Two likely causes could be the either an inner fender liner that is dragging in the tire or the plastic belly pan has either come loose...

Q: The engine will not warm up to normal operating temperature. I've replaced the thermostat twice, replaced the waterpump and bled

The cooling system will not get up to operating temperature if the thermostat is not seated correctly, radiator cap not holding enough pressure or the cooling fans are on all the time wen the key is on. If you already...

Q: Water leaking onto car floor

Hello. A/C water leaking onto the driver and passenger seat floors could be caused by one of two things. One possibility is that the drain tube for the evaporator is clogged causing excess water to leak onto the floor. The...

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 Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...