Texas4x4

Just bought a 94 Grand Cherokee Limited. I replaced the battery and all the cables and ground connections, and now when I rev it up when the idle drops down sometimes it will stall out. It will start right backup though. The lights also dim when it drops to a low idle or I roll up windows. It didn't have the idling problem before I changed out all the battery stuff. I will check plugs tomorrow to make sure it's not just killin itself. also gettin rear lamp failure readout. Any suggestions?

Texas4x4

I bought this thing to get out on the trails while my dr350 head is being honed out, and I need it to get to work and back also. I was gonna start off my extar cash woth tires and a suspension lift, but here I am with this problem. Any help for a new jeep pwner from you veterans?

Steelcityfan29

Sounds like a bad ground to me... make sure youre grounded well to the factory location and make sure that where you bolted it down is CLEAN.

davidzog

Does the volt meter indicate that the system is charging the battery??

mike37

when it stalls is it like the key is turned off
or more like the idle just starts to get slower until it dies

Texas4x4

All the lights and everything are still on, so not like the key is off. I have replaced and cleaned all the ground connections well. I am going to check the alternator today. It dies when the idle gets down below around 450 rpm, but not every time.

mike37

check the IAC its on the throttle body
it controls your idle un plugit and plug back in couldbe as simple as the conection is bad

ol"blue

The rear lamp failure comes on when any rear bulb fails. Check license plate light, high-mount brake light, and reverse lights along with tail, brake, and turn lights. On my '97 ZJ it was the license plate light that caused failure light to come on.

Texas4x4

Thanks Guys. I will check these things when I get home and let you know if it solves the problems.

Jsny1010

Hey Texas, I had this issue once after i swapped the battery. The negative post was loose and when i was idling it was losing power. Did you try a new battery? just have them swap it

Texas4x4

Haven't tried a new battery yet, but I switched from top post to side terminal because I cut the wires back a little because they were so corroded. I dont think that the side terminal could be loose, and they are cranked down tight but I will check anyways.

Texas4x4

Fixed it! It was the plugs they were toasted and obviously bad. Put in new ones and it runs alot bette, no stalling. Took it down my local bayou today for a celebration. Thanks Guys!!!