90 YJ, 4.2l, No A/C
I have a problem with my heat control lever. When I to slide the lever from "cool" to "warm", the lever snaps back to about the halfway point. I cannot get the lever to slide to warm and stay there. I have traced it to the connection on the heater box, but cannot figure out how to adjust it to make it open the mechanism on the box. I usually just reach down there and open it by hand while holding the control lever in the "warm" position. Pain in the butt when I am driving. Any suggestions?