Q: The defroster will not blow warm air in a 2007 Ford Mustang.
The defroster only blows cold air. I can select every other mode (vent, vent/floor, floor, floor/defrost) and heat will come out. When floor/defrost is selected, heat will come from the floor but room temperature air comes from the windshield.
My car has 98000 miles.
My car has a manual transmission.
This is going to be caused by a problem with the temperature blend door and mode door to the defrost is not opening to get warm dry air. You may have a broken door inside the evaporator heater case and will need to have a mechanic like one from YourMechanic check the a/c heat operation to verify the problem is internal to the heater control door inside the a/c case.
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
Car overheats
It is great to see that you have been trying to tackle your Corvette's overheating concern head on. From the description provided it seems that a lot of components dealing with the cooling system were replaced. From that, I can...
Ignition interlock problem
Hello. The neutral safety switch allows you to start the car while its in park or in neutral. This is likely the cause of this problem. It is also a possibility that there is a problem with your shifter. You...
Brake lights stuck on
Unfortunately the brake light switch has no adjustments. If it is faulty, it will need to be replaced again. My recommendation is to have a mechanic, such as one from YourMechanic, install a new brake light switch (https://www.yourmechanic.com/services/brake-light-switch-replacement).
car slows with acceleration
The hesitation may be a dirty throttle body (https://www.yourmechanic.com/services/clean-throttle-body) or bad throttle position sensor (TPS) (https://www.yourmechanic.com/services/throttle-position-sensor-replacement). If it drives better with OD off, I suggest leaving it off or having it diagnosed and repaired. It won't hurt anything to leave...
Blows smoke tailpipe startup
Hello there, thank for writing in about your 2005 GMC Canyon. This is a common problem as vehicles age and go up in mileage. The fault determines what color the smoke is and how it looks. If the smoke is...
Code p0037: Bank 1, Sensor 2 H02S Heater Control circuit signal had low voltage for a pre-determined period of time
Hello. If your oxygen sensor (https://www.yourmechanic.com/services/oxygen-sensor-replacement) is reading low then it may be possible that it needs to be replaced. If there was a blown fuse (https://www.yourmechanic.com/article/signs-your-car-has-a-blown-fuse) or disconnected wire then there would be no signal at all. If the...
I want to install tachometer what do I hook to in the ignition switch?
Hi there. Take the power wire to the tachometer (the input wire) and hook it into the return wire on the coil system. This will register the tachometer and make it work. Put the ground wire on a good source...
My car won't start it's just ticking. Tried to jump it and still wouldn't start. What else can it be?
Hello There, This is likely a problem with something on your starter called a starter solenoid. The starter solenoid is located on the starter and has internal electrical contacts that transmit electricity to the starter. As electricity is supplied to...
The car place told me there was nothing wrong with my car, and the next day it overheats again, what is going on?
It sounds like you may possibly have a failing cylinder head gasket again. A blown head gasket may cause a number of different symptoms. Coolant in the engine oil, an engine misfire or oil leaking from the engine could all...
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...
How to Use the Ford Active Park Assist Feature
There There are few driving maneuvers as universally disliked as the parallel park (https://www.yourmechanic.com/article/how-to-park-your-car). Most people still remember that terrifying sequence of movements in their driving test. Even people who live in metropolitan areas, people who must regularly parallel park,...
P0533 OBD-II Trouble Code: A/C Refrigerant Pressure Sensor Circuit High Input
P0533 means the A/C refrigerant pressure is too high to safely function often due to inoperative cooling fans or too little or too much refrigerant.
Browse other content
Services
Maintenance