jimm

Some weird stuff started happening shortly after a mechanic replaced my coil pack/plugs (the frayed ground strap I found runs over the coil pack) a month or so ago. Thought it was something else so being that it was at the shop I had him do it, fairly easy job

The jeep started to buck one day, tank was low, about an 1/8 but the low gas light didnt chime on. I could ease into it and it would takeoff but if I had to goose it a little it would buck. My mechanic said it sounds like its running our of gas and that maybe the gauge was off. I put some gas in and no issues except for the fact that my gauge is off?

Turned on my left direction yesterday and it started blinking fast, thought the bulb might be out, after leaving a store my direction was fine. Also it started off in second gear. It shifted fine but no 1st gear. When I shut it off, took the key out and restarted it, no issues. happened twice this week

My trans over heat light chimed on, then off 3-4 times the last 3 weeks. One time the jeep was only running a few minutes when it came on

OK, I did some research and some people mentioned grounds. I knew there is a ground from the firewall attached to a bolt on my valve cover.. The strap near the valve cover looks bad, like somethings been cutting at it, just about half ways through, all frayed. Bought a strap today but the rain is bad and will be the next day or two so I have to wait, will update after I replace it.

Does anyone have a diagram of where the other grounds are located in this 4.0 WJ? Thanks

jimm

Replaced the ground using a 24' battery cable instead of the flat mesh cable, so far no issues and it seems to be running/idling better than it has the last 8 years. 156K now, bought it with 78K

I would still like to know the location of the other grounds.

My check engine light bulb is out so I check for codes every so often turning the key on and off 3 times, the 3rd time leaving the key on and the codes show up in the digital odometer for those who dont know.

I didnt mention the code that came up when the tans would start off in 2nd was P1762 (Governor Pressure Sensor) - Im just assuming if I took this to a mechanic they would probably would change out the Governor Pressure Sensor not realizing the mesh ground cable wasn't doing its job. Pays to do a lot of research on the net, watching youtube videos etc

My P158 code came back on, its been there for a long time, doesn't seem to effect the way the jeep runs, any thoughts on this code would be appreciated