lights ?
New to the forum.. I had the a/c evap. replaced in my '99 Grand Cherokee .Now if I try to run the wipers and the headlights at the same time , wipers slow or stop. Also if I open drivers door the rear window solenoid opens. I replaced multi-switch, no go. Have checked for shorts the best I can. Any help would be greatly appreciated. Frank
CF Veteran
Joined: Feb 2010
Posts: 12,367
Likes: 23
From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
Check the ground cable that goes from the battery terminal to the body. You definitely have a bad ground someplace.
CF Veteran




Joined: Nov 2015
Posts: 2,863
Likes: 201
From: syracuse ny
Year: 1997 230,000 miles
Model: Grand Cherokee (ZJ)
Engine: 4.0, new lifters valve job with new springs and exhaust valves, preload set with shims
Well you need to get in there with the old multimeter and field service manual schematics and do some verifications and troubleshooting. Keep us posted.
Well, back in the shop after gallbladder surgery. Found the problem... Started running new jumpers from body grounds I had already cleaned and inspected. BINGO. Now moving on to new problem.. Many thanks,Frank


