Originally Posted by daddyjeep
The CAD requires vacuum to both engage and disengage. If a line was damaged while wheeling it will not disengage the front axle and the light will not go out.
Please look at my pic. 2 vac. lines running vertical next to battery box. The one without check valve is broken off! Not sure where it went? or if something is missing? Symptoms are:
Just bought and previous owner had CAD light switch unplugged. I plugged in and 4WD light is on all the time.
Vac. constant at drivers side CAD port in 2WD. Axel locked. In 4WD no vac. at pass. side port.
Applied vac. to pass. side CAD port and axel unlocks and front driveshaft does not spin. So, vac. does not shift between ports.
Sorry to bother, but thought you might know what is missing or where this line should go? Thank-You, Roger