Q: My heat blows out of the passenger vents but blows cold air out of driver vent...what is the issue???

asked by on

When I turned on my heat the other night in my car...it was blowing heat out of the passenger side but cold air was coming out on driver side vents.

My car has 42000 miles.
My car has an automatic transmission.

Hey there. The temperature blend door on the left side is not switching from cold to warm. The temperature actuator needs to be replaced and the linkage checked. Have a local expert inspect the cooling system to verify these issues and move forward with the proper repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. My heat blows out of the passenger vents but blows cold air out of driver vent...what is the issue???

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: Diagnosing a heater core problem

A common tell tale sign of the heater core not working is the heater not providing warm heat when turning it on. You may also notice the floor being a bit damp in the event that the heater core might...

Q: Q: Air won't blow

This is a very common problem for your type of vehicle. Most likely what has happened is that the blower motor is going bad. As a result of that, it is drawing too much current. What is likely to be...

Q: AC question - 2003 Chevrolet Tahoe

You may have a bad temperature blend door actuator for the left side vents. You should also have the complete system checked to make sure you are not low on refrigerant since the left side will be warmer than the...

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...