Temp gauge should read about 1/2 way if the vehicle engine is at proper operating temp. If it is lower it is why you have luke warm heat. If the temp is ok get the climate control system scanned for faults.
SOURCE: heater on ford 2003 ford pick up blows cold air
on the evap box there is a control mtr that switches the hot cold door. these mtrs are prone to failure. the other problem that i have seen is that the door breakes in side the evap box and that means removing the box to replace the door . if i remeber correctly you may have to slide the dash back to gain assces to the control mtr to test it good luck
SOURCE: defrost blows cold air
Sounds like you have a plenum door that is not opening when you go into defrost mode. You will have to check all your vacuum hoses and switching valves under the dash to see which one is not working. Hope this helps.
SOURCE: Heater is blowing luke warm heat
Double checking, does fun shut off when switched to heat instead of defrost?
SOURCE: A/C not blowing cold air, warm air on the driver's side
have you checked the mixing motor and the door?pull out the glove box you will see a white motor remove it 5/16 or 8mm plug it back in run the system to see if the shaft on the motor works then check where the shaft fits in the top of the door if it's broke cut the box under the door w/ a dremal remove door fix if posible reverse steps good luck.i'm doing this now i fixed the oor but the compressor wont come on any ideas???????????
SOURCE: car warms up just fine but the heater blows cold air
both hoses is hot signifies thatcoolant circulation is just fine check the blend door actuator it might be stuck.pan the heater temp controller from hot to cold do you feel any change in temp of the air from the blower?if you dont feel any change check the blend door actuator
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