Q: Heater and fan not working
The heater is not working and the fan only blows air on high.
Recommended Services
| Heater is not working Inspection | $94.99 - $114.99 | Get a Quote |
Hello. There are several things that could cause that heater to not work properly and the fan to only blow air on high. It is possible that you have a bad thermostat, which would cause the lack of heat. It is also possible that your heater control valve could be malfunctioning or that your heater core is going bad or is clogged. The most likely cause for the blower fan only blowing on high is that the blower motor resistor is malfunctioning. To determine the proper fix for your truck, a certified technician, such as one from YourMechanic, should diagnose your heater issue and make a recommendation for proper repairs to get your heater and fan working properly again.
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
What others are asking
TPMS light is on
In Hyundai vehicles you need to have a special scanner to reset the tire pressure monitor system when a sensor is replaced. The scan tool will wake up each sensor and record its serial number. After you have each tire...
Overheating problem reoccurred
Hi there. Due to the added stress and heat, an AC pump puts on your engine it is crucial that your AC fan to work properly. Since the relay has been replaced there is a strong possibility that the overheating...
Electric problems
For an issue like this you are going to have the vehicle scanned to see if there is still something disconnected or if there are any codes that need to be cleared. You may have damaged the control module by...
My Oil Pressure Light blinks when I come to a stop. What's wrong?
This is likely a sign of low oil pressure, which is usually caused by a leak or low oil levels. I would start by checking your oil to be sure the oil level is at the appropriate capacity. You should...
My water pump just dumped all its fluid. Is it safe to drive my truck if I fill it back up with water without a new pump?
Anytime there is no or low coolant in a vehicle, it can be very harmful to the engine. Low coolant can cause a seized engine or a blown head gasket. It is recommended that you have the vehicle towed to...
Hi I recently replaced my transmission on my 2011 GMC Terrain and now it says reduced engine power any clue to why ?
The reduced power is due to a major sensor or actuator failure in the engine, transmission or other vehicle systems that the on board computer system sees as a major failure and limits the throttle and speed of the vehicle....
Losing power when I go up hills.
Hi there. When the car is climbing hills and the engine RPM goes up, but is slow to accelerate, it is due to the transmission downshifting to a lower gear ratio. However in some cases, the lack of acceleration can...
My automatic transmission wont shift gears. It is stuck in neutral
Hello, thank you for writing in. If you cannot physically move the shifter passed neutral and into drive, then there is likely more stuck in the way. You will want to keep digging until you have removed all of the...
Where is the neutral safety switch located on a 2005 Chevy impala
The switch is mounted on the top of the transmission case and is visible as you look down into the right rear portion of the engine compartment (as you stand facing the front grille). It will be roughly below the...
Related articles
Symptoms of a Bad or Failing AC Fan Control Module
Common signs include cooling fans running for a long time or not at all, as well as weakened air flow. Without fixing, your car may overheat.
Symptoms of Bad or Failing Heater Hoses
Common signs include coolant leaking, hoses cracking, and engine overheating.
How Long Does a Heater Blower Motor Resistor Last?
Keeping Keeping the cabin of your car warm during the frigid temperatures of winter can be a lot easier said than done. If even one of the components of the heater are not working properly, it can prohibit the warm...
Browse other content
Estimates
Cities
Maintenance