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Why does the temperature on your heater not get any warmer no matter what the setting on your 2002 Mercury Mountaineer?
Wiki User
∙ 14y ago
Low coolant level, theromostat is stuck open are 2 thoughts that come to mind.
Your model should just have coolant flowing directly into the core at all times. A simple check of the flow is to feel both heater hoses going into the firewall from a cold start. The hoses should warm up at about the same rate and get uncomfortably hot. This is a good indication that heat is getting into the passenger compartment.
If it appears that the core is getting hot, the next suspect is the blend door. This door diverts some or all of the air flow through the heater core and commonly fails on the Mountaineer/Explorer/Ranger/Mazda pickup...all of which use the same plenum box. The door is on a vertical axis and has a pervasive problem with the the plastic connection to the motor breaking. The door can swing back and forth randomly or wedge in a strange position, killing heat and AC efficiency. This is an expensive dealer repair, but there is an aftermarket repair kit from HeaterTreater that will address and solve the problem. Complete diagnostic information and diagrams are available.
Wiki User
∙ 14y ago
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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
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"
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165
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Jump start car and do not run heater with engine not running.
Should heater vent door be open are close when heater is on?
vent door will be open to what ever setting u set it on regardless of what temperature setting you are using
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
Ideal temperature setting for an electric water heater?
110-120 degrees Fahrenheit.
Hot water heater pilot light works heater wont light?
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What seems to be the problem when you have no heat coming on in a 2002 mercury mountaineer?
Look at your temperature gage...If that is low, you might have a bad thermostat, which would keep your heater from working...I would check that first. also, check the cab air filter. i had the same problem. temp was fine but the filter was full.
