Skip the auto shop - Our mechanics make house calls

Q: Side vents not blowing air

asked by on

The side vents arent blowing any air in the back only the front passenger and driver

My car has 154645 miles.
My car's transmission is unknown to me.

Check to see if the air is blowing out of the floor vents in the rear? If they are, then you have a bad rear air diverter actuator in the back on the evaporator case.

If there are no blowers blowing, then you may have a bad rear blower assembly. It is in the rear evaporator blower housing and may also need the blower resistor.

YourMechanic can send a mechanic out to you for a diagnostic inspection of the air not coming from the vents in your Yukon, and recommend the best path to repair.

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: Car won't do anything battery good

Hi there: When you start your car, it's 100% completed by power coming from the battery. Once the car starts, the job of powering accessories and components falls on the alternator. If you have no power after inserting your key,...

Q: Cylinders full of fuel after replacing pressure reg...

Hi there. Assuming, proper procedure was followed during the fuel pressure regulator installation, leads me to believe the new fuel pressure regulator must be at fault causing the hydrostatic lock. A visual is possible, looking into the throttle body, using...

Q: Putting pitman arm onthe power steering gearbox

Hello there, the power steering gearbox and pitman arm are critical steering components on your 2001 GMC Yukon. The pitman arm must be torqued properly so it sits on the splines properly preventing it from loosening over time. A regular...

Related articles

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...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...