timaz996 Posted March 21 Share Posted March 21 My Dash A/C & Heat fan only works on high. Where to start looking? Link to comment Share on other sites More sharing options...
Tom Cherry Posted March 21 Share Posted March 21 There is a “resistor” module that controls the speeds. When you lose the low speeds, it is usually bad. You have a “Ford” system. Find the module and pull it out. You can go to NAPA and they can look at it and match it up. It is a common unit….nothing exotic…. When the lower speed resistor go bad, then you have no resistance and the fan runs on high…. Usual fix….if not, in the control..but you ALWAYS put in a new resistor pack or module. Plug and play….no splicing or wiring….plug in. Link to comment Share on other sites More sharing options...
Rocketman3 Posted March 21 Share Posted March 21 This is your fan resister pack it has has failed. on my 2000 Dynasty I opened the generator compartment, then on the left side of the generator twisted my arm up and it was there. good Luck Link to comment Share on other sites More sharing options...
timaz996 Posted March 21 Author Share Posted March 21 Thank you Tom, but I have a GM system but I'm guessing it will be the same? Does anyone know where the resistor or module is located? 2 minutes ago, Rocketman3 said: This is your fan resister pack it has has failed. on my 2000 Dynasty I opened the generator compartment, then on the left side of the generator twisted my arm up and it was there. good Luck Left side? Passenger side? How far up should I be looking? Link to comment Share on other sites More sharing options...
Rocketman3 Posted March 21 Share Posted March 21 Passenger side - look for like four wires connected to a module - my guess is a foot over and a foot up. 1 Link to comment Share on other sites More sharing options...
jacwjames Posted March 21 Share Posted March 21 Mine is mounted into the plastic shroud of the AC condenser and heat exchanger. Mounted up mine has a red, orange and blue wire. Left center in picture Link to comment Share on other sites More sharing options...
timaz996 Posted March 21 Author Share Posted March 21 Thank You very much! I will look now. Is this it? Link to comment Share on other sites More sharing options...
timaz996 Posted March 21 Author Share Posted March 21 A better picture. Link to comment Share on other sites More sharing options...
Solution jacwjames Posted March 21 Solution Share Posted March 21 There should be a couple screws holding the resistor pack in, should just come right out after removing the screws. Any auto parts store should have one. I know the parts lists have them listed. Link to comment Share on other sites More sharing options...
timaz996 Posted March 21 Author Share Posted March 21 Thank you Jim and Michael. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now