The mixing door isn't working. Take it to the garage as it porbably is the controler. First make sure there is vacuum getting inside the cab from the engine.
Add your answer:
Related Questions
Cool air runs through defroster vent 1999 mercury couger?
Assuming your temperature selector is not on "cold", the heater core is likely bad
How do you replace the heater core on a 2000 Mercury Mountaineer?
This is a big job.. Get a manual on your car from DISCOUNTAUTOREPAIRMANUALS.COM .
What is causing the heater to blow cold air in 2002 Mercury Mountaineer?
you would have to see a mechanic about that problem
Where is the heater core on a 1997 Mercury Mountaineer?
Behind / below the glove compartment area inside a plastic case . You can see where the heater hoses connect to the heater core at the firewall in the engine compartment
Where is the heater core located on your 1997 mercury mountaineer?
Behind the glove compartment area inside a plastic case . From the engine compartment you can see where the two heater hoses connect to the heater core at the firewall
What makes your windows keep fogging up even with the defroster on a 1992 Bonneville?
Your heater core is leaking in it's housing box and blowing moist air through the heater/defroster. Try bardall radiator stop leak. If no help, install new heater core. Chuck.
If heater core is clogged will defroster work?
no
Whats wrong on a mercury mountaineer with duel controls when the heater only blows cold air?
Mercury Mountaineers have a "blend" door in the heater box. It is probably malfunctioning. You can find more info by searching for Ford + "blend door" or "no Heat"
Auto-heater plugged into the cigarette lighter drained battery replaced battery but the 2004 mercury mountaineer will not start Can anyone help?
Jump start car and do not run heater with engine not running.
What could be the cause steam coming in through the defroster vent of your 1991 Nissan Maxima?
A bad heater core / it needs to be replaced
Why don't the heater or defroster don't work in a 1993 chevy caprice classic?
Why the heater or defroster may not work in a 1993 Chevy Caprice Classic because of the heating core is going out.
Why does 03' mercury mountaineer heating system in front blow cold air but heater core is good?
Probably because coolant level is low
Where is a 2002 Mercury Mountaineer oxygen sensor heater circuit bank 2 sensor 2 with a code of P0161 located at?
left side of the engine after the cat
Do cars made for Florida have defrost and heat?
Yes they have a heater/defroster.
Why your defroster suddenly stopped?
The water is not circulating through the heater core or you have a control problem. If the heater is putting out heat then it is probably a control problem. If no heat then - water pump out, low on coolant, or maybe the therostat is stuck open.
Where is the heater core on a 2001 mercury villager?
mercury villager heater core 2001
Defroster smells like antifreeze Lincoln LS?
If you mean "why", then the answer is that there is a leak in the heater core.
Why are my windows fogging on the inside when i turn the defroster on in my truck?
The heater core is leaking coolant.
Can you still drive your car without the heater core?
Yes, as long as you connect the incoming and outgoing heater hoses that were connected to the heater core together. You will not have a functioning heater or defroster but otherwise it will be fine to drive.
What do you look for in having the blower blow to the floor and through the vents. Currently no matter how you adjust the AC or heater control it blows through the defroster by the windshield?
your switch cable might be broke you will have to remove your dash
Why does your 2003 Honda Accord heater blow cold air through the defroster vents and warm air through the dash vents?
This means that you have either an issue with a vacuum line or one of the a/c - heater doors behind the dash is not working correctly and you need to start off at the a/c - heater controller to check that all positions are working...........
Why do you have antifreeze on the floor of your car?
You have a leaking heater core. You might smell antifreeze if you turn on the defroster.
Why does the air conditioning unit go on and off with only the heater turned on 1993 ford probe gt?
The air conditioning will turn on with certain heater settings, typically any setting that mixes with the defroster. This to help remove moisture and improve the effectiveness of the defroster.
Cost of removing heater core in 1999 Mercury?
How much will it cost me to replace the heater core in my 1999 Mercury
What happens when your heater core goes out?
If the heater core in your vehicle goes out, you will not be able to use your heater or defroster. You will also notice the smell of antifreeze throughout the vehicle and possibly a film on the windshield from the antifreeze.
