Q: Heater only gets hot on the passenger side 2003 Honda CRV

asked by on November 18, 2016

My 03 CRV only heats on the passenger side. The air conditioner works fine. The thermostat and the heater control valve have been changed.

My car has 125000 miles.
My car has an automatic transmission.

Heater is not working Inspection $94.99 - $114.99 Get a Quote

Hello - your description suggests that there is a problem with one of the air duct routing doors, sometimes called "air blend" doors, in the heater. This could be caused by a failed heater door actuator or air blend door. I would recommend an inspection of the heater and heater controls by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

How do I select a folder from a list when using a USB device?
When playing from a USB device, you can view a list of the folders, and then select which one you would like to play from. To do so, press the Tune-Scroll knob to view a list of the folders, then...
Seat belt light not turning off.
Hello. The most common cause of the seat belt light remaining on in your vehicle is a bad seat belt sensor. These are located in the seat belt receptacle. There is also a common issue with the passenger occupancy sensor...
Trouble code P0133 - 2002 Dodge Durango
Do you know if there are any exhaust leaks before the sensor? This code trips when the O2 sensor is not switching back an forth between rich and lean as fast as the computer is setting the conditions. This can...
Is it safe to drive when this warning light is on? Thanks.
The Advancetrac is the name for your traction control system that is used by Ford. The traction control system monitors the steering stability of the vehicle and engages when loss of traction has been detected. This is done by the...
White smoke coming out from exhaust when throttled.
Hello, thank you for writing in. The lowering of the engine oil is a sign that the oil is being burned in the engine. For the oil to get into the combustion chamber it must pass through a bad piston...
Switching vtec engine d17a2 to d17a on a 2001 Honda Civic.
Hi there. The main difference between the two engines are the cylinder heads. The cylinder blocks are the same and will bolt up to the transmission. You can swap the engine out, but make sure that all of the sensors...
How to safely lift my vehicle
Hello. The jacking points on your vehicle should be marked by a triangle on the side of the pinch weld pointing down. You place the jack right underneath the pinch weld to lift up the vehicle. The lifting points should...
Is it normal for the srs light to be on in my 2002 Honda Accord?
The supplemental restraint system (SRS) light should come on momentarily when the ignition is turned on. It should then go out. If the light stays on continuously, there is a problem in the SRS system. The cause of the light...
2010 Ford Fusion Advance trac service light on and Rack
The advancetac service light refers to the vehicles traction control system. The traction control system (https://www.yourmechanic.com/services/traction-control-light-is-on-inspection) monitors the steering and stability of the vehicle and engages when loss of traction has been detected. This is done by the use of...

Related articles

The Best Used Cars to Buy If You Have Kids
Once Once you have kids, the kind of car you have becomes very important. Suddenly, the amount of space, entertainment features, reliability, safety, and easy to clean interior become the top priorities. Here’s a list of vehicles meant to satisfy...
The Best Used Cars to Buy If You’re Shorter Than Average
Vertically Vertically challenged? Hate getting behind the wheel and having to crane your neck to see? There’s nothing wrong with you, but there is something wrong with your car. It might be time to trade it in and take advantage...
How to Flush Out Your Heater Core
If your car’s heater (https://www.yourmechanic.com/article/how-to-buy-a-good-quality-heater) doesn’t seem to be working too well, it might be time to flush it out....