I have a 2001 dodge dakota,
the heat/air control knob has 4 settings, It broke once i took it to the dealer and it cost 100+ bucks to fix, broke again. I dont want to pay for it again, it only works on high, can i fix it myself?
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Re: broken heater control
YES<< Replace the Main Unit that The SHITCH is on. A/C Control Modual, Not sure if you have them in YOUR AREA But Used Parts Yards that Let YOU Pick and Remove the Parts, They (Pick-a-Part and Pull-A-Part) Sell them For 20-40 Bucks, and they Are Not Hard to Replace.
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Taking your heating box apart may be a really big job.
It would be good to check the vacuum supply at the heater box, and/or at the controls.
Lack of sufficient vacuum can cause the heater to not work.
The low vacuum could be due to a vacuum leak somewhere before it gets to the controls or the heater box.
Then, the heater box or flaps could be stuck or warped, causing malfunction.
It is all repairable, but can cost you a lot of time and effort fixing this.
God bless your efforts.
My 06 Dodge Stratus did this same thing after I had my transmission replaced. I thought the guys at the shop did it but come to find out the actuator that controls the knobs and the turning of the fans for heat and cool air had popped off of the turning mechanism. My uncle took out the glove box so he could access the back of the heater/ac panel. There should be a round mechanism that will spin back and forth when turning the knobs from cool to hot and 1-4 for wind speed control. On top of that know are small notches that hold a white, possibly grey "hook" style device that holds the turning mechanism in place once you change the settings from hot to cold or between 1-4 of the wind speed control. The "hook" style device may be stuck. Try prying the device off of the turning mechanism and getting it in to another one of the grooves on the mechanism. If you can get it to move you should be able to get it unjammed.
sound like a vacuum leak. you can check this by spraying wd40 very carefilly on the vacuum lines under the hood. the idle will change when a leak is detected. could also be a modulator valve or vacuum line under the dash. check this with a spray bottle filled with water. dont want the smell of wd40 in the cabin
Cold on drivers side and heat on passengers side, actuators working properly and blend doors are moving. Heatertreater is for piece of plastic on actuator motor. I moved blend door by hand after disconnecting actuator and works fine, both sides freezing when moved in opposite direction.
Did the switch break because it was stuck? If so, then yes, they will have to change actuators and doors. Does the fan work on all speed setting? If so then you do not need a blower resistor. The resistor pack only controls the current flow to change speeds of the fan.