How do you change the orifice tube on 1997 grand Cherokee jeep with 5.2 v/8
You have to remove the door panels
DRL Module is located under the fuse box on the right side fender on a 97 Grand Cherokee
On the fuel pump module, in the tank.
36 mm or 1 7/16in.
The engine computer is the voltage regulator in a 1997 Jeep Grand Cherokee.
I had the same problem with my 1997 Grand Cherokee and it was the dash mounted automatic light switch. The problem was also solved by turning the headlamps on manually.