Skip the auto shop - Our mechanics make house calls

Q: Vehicle at running temp, turn on heat, no heat - stomp on gas, there is heat - ??? 2004 Jeep Liberty

asked by on

When I turn my Jeep on and let it get to normal running temperature I turn on the heat it blows cold air I stomp on the gas there's Heat let off the gas it goes back to cold air what could be the problem

My car has 104000 miles.
My car has an automatic transmission.

A: Hello - regarding your lack of heater funct...

Hello - regarding your lack of heater function unless the engine is revved up a bit, you have a coolant flow issue. This could be caused by a worn water pump (engine might be running warmer than normal?), a partially blocked heater control valve (adjustment problem or failed heater control switch), or clogged cooling system that simply has poor flow. I would recommend an inspection of the heater & cooling system 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.

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

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: why doesnt my fuel gauge show me how much gas is in the tank?

There are 3 components, and wiring involved in a fuel gauge on your car. There is a fuel level sensor, also called a sending unit, the PCM (main engine computer) and the instrument panel. The fuel level sensor is...

Q: There is a misfire on cylinder 2. I changed the cylinder and spark plug but am still having the misfire.

Hello. If you switched the spark plugs relating to two different cylinders and the same cylinder exhibited the same signs, then the issue is related to the other components on that cylinder. The test you performed was a great one....

Q: Stalling when I move rear driveshaft.

Hi there. Anytime your vehicle is stalling when turning the driveshaft by hand, then there is a ground issue with your vehicle. Also, there could be an issue with the output shaft speed sensor (OSS) on the tail shaft on...

Related articles

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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.