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Your mercury Grand marquis 2000 heater defrost ac fan is not blowing How do you replace it or know that is the problem?
If you have the climate control heat/AC with the Auto setting your fan is a variable speed unit that has solid state controller. Very common for this controller to go out. The unit is mounted under the hood about 12 inches to the right of the fan motor. directly back from the right side valve cover. The unit ia about 4X2" with a connector on the right side. This unit can only be purchase at your dealer. difficult to change but it fixed my problem.
What else can I help you with?
If the AC on your 1997 Mercury Grand Marquis is blowing hot air and making a ticking noise what is the problem?
low on freon compressor kicking in and out
Mercury grand marquis will not start?
A bad starter can cause a Mercury Grand Marquis to not start. A bad alternator or a problem with the security system can be the cause for the car not starting.
What causes the front air conditioner on 1999 Lincoln navigator to stop blowing through the ac vents and start blowing through the defrost vents?
When there is a problem in the vent system it defaults to defrost setting. Check the doors & vac supply
Mercury Grand Marquis check air suspension light is on?
I have a 1998 ford grand Marquis- and the problem is the air suspension light stays on- how to fix this problem
Hot air is not blowing in your 1996 Mercury Mystique?
air is blowing bat problem is no air com to front only in class
Will a F 150 transmission work in a Mercury?
If it is a Grand Marquis or any other V8 RWD Mercury, it shouldn't be a problem as long as they are of similar vintage
Your 98 sebring lxi is stuck blowing out the defrost and will not go to any other setting. Any idea how to fix this annoying problem Thanks?
that usually indicates a vacuum leak which causes the system to go into default mode, which is defrost.
How do you turn off check engine light on a 1992 mercury grand marquis?
Have vehicle scanned to determine the problem
What is the problem if after your 1988 mercury grand marquis shifts out of second gear the car is very choppy after that when you accelerate?
If a 1988 Mercury Grand Marquis shifting out of second gear gets choppy after acceleration then the overdrive band may need servicing. An overdrive band that is sticking can also cause this problem.
My 2000 Mercury Grand Marquis keeps blowing the fuse for the back tail lights?
Have to first remove all the light bulbs, then put in a fresh fuse, if it still blows, then you will have to follow all the wires to find the short. If the fuse does not blow, then the problem is with either the bulb or the socket.
Why is my vehicle's defrost blowing cold air when set at warm?
If the temperature cannot be changed for any of the direction settings, e.g., defrost, vents, floor, then the problem is very likely to be the blend door actuator motor.See "Related Questions" below for more
Why does AC and heater blow air through defrost vents and will not blow air into cabin vents in your 2009 Mercury?
If the AC and heater in your 2009 Mercury are only blowing air through the defrost vents and not into the cabin vents, it may be due to a malfunctioning blend door actuator or a problem with the HVAC control system. The blend door actuator controls the flow of air to different vents, and if it’s stuck or malfunctioning, it may be directing all air to the defrost vents. Additionally, issues with the climate control module or vacuum leaks in the system could also cause this problem. A thorough inspection of the HVAC system is recommended to identify the exact cause.
