Why does mt 2005 Grand Cherokee 4.6L V8 air conditioner fan work only on high speed? No one can explain this to me. When I slap the glove box really hard, other fan speeds will operate temporarily (1 min or less). Help!!!
2005 Jeep Grand Cherokee , 5.7 hemi,Blistein HD shocks and struts , Eibach pro-kit , 20" SRT Reps, Nitto NT420s 275-55-20 tires, AFE stage 2 dry cold air kit Billet Technology catch can , Imatation leather disco steering wheel cover ..... more to come
I would go to an independent and tale them the instructions available VIA Google search for heater control wires melting on my jeep. It involves adding relays so most dealerships won't do it because it is modifying the system
Yes, it is related to relays indeed. I remember reading that a long time ago. However, i accidentally used the word "sensor". Does anyone have any idea how time and effort from a mechanic, and therefore, approximately what kind of bill I am looking at?
What I remember from my research it is installation of additional relays and heavier gauge writing as well as replacing the heater controls and blower motor. I had a friend whose Wrangler had the issue and he spent $500+ fixing it and that is a much simpler dash than a WK.
I had the same issue (still do lol). It was suggested to me to replace the motor blower resistor. Very cheap and easy. It's located behind the glove box. When I went to replace the resistor I noticed that the wiring harness that connects to the resistor was a little "burnt" I'm assuming this is the melting issue I'm hearing about? I just purchased a replacement wiring harness for this in hopes that this is I fact the problem. Waiting on it to get here....
For you savvy DIYers, when I replace this wiring harness what would you suggest is the best way? I'm thinking splicing the old in with the new harness.... Soldering and shrink wrapping.... But then again I'm thinking the old wires may cause the same problem eventually... How far do the original wires go and is it possible to replace all the wires with a thicker gauge? The new harness I ordered did come with thicker wiring. Any suggestions or helpful tips/ideas?