1 Solution for "98 mark viii new climate control unit but not blowing heat or ac with new blower motor speed control"
I'm assuming the problem is the blower motor isn't coming on or working. 1st, check the fuse. 2nd, remove the glove box or pull the 2 tabs that act like stops when it's open ( the glove box will open out further) and you'll see the power plug connector for the blower unit. Turn on the blower through the climate control (heat, A/C, or whatever) and wiggle the connector to see if the blower turns on. If starts working, then an easy solution is pull the connector off and gently press the prongs together or inward. Then carefully reconnect with damaging the prongs. This worked for 96 Mark VIII due to the fact the prongs were not "seating" correctly in the female connector. It's been about 2 years since I did this and the connection is still good. If wiggling the plug doesn't work, pull the plug, turn on the climate control (heat, A/C), and check for voltage to the plug. That's about all I can help with.
The climate control plugs into the ECU behind the glove box and then it goes to the blower motor.So if the ECU is bad no blower motor.
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My climate control went dark but the blower work
The blower work but the climate control went dark
i can,t get the control to open and close ac heat door the blower works fine
Check the dimmer switch for the dash isn't turned down all the way. If it isn't that, check that the bulbs aren't burned out. Local auto parts store will have replacement bulbs. Your bulbs will have a number inked on the glass, match that number and do NOT get a brighter bulb as it may overheat. IF you can find an LED bulb, you can go brighter as they don't get anywhere as hot. If TOO bright, it might look out of place.
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