Originally Posted by 68alltheway
I found a vacuum line behind the headlight that was rotted and cracked. The a/c and heater work perfect now. But the cruise control still doesn't work. The CRUISE light on the dash comes on but it won't engage. I checked the wiring through the column and it ohmed out good. Could it be another vacuum line?
Could you please give details on where the vac line is located? I have the same problem on me 96 grand cherokee and I'm trying to find where is comes out from the firewall under the hood. You said that it was rotted and cracked behind the headlight. Was it the driver side or passenger? do you know where it comes out from the firewall and what does it look like?
Help is much appreciated.