So, I just got me a fancy 2000 Grand Cherokee Limited!
White exterior, black leather interior.
Odometer reading just over 200k
The paint is original(sans the hood, which I'll explain in a minute) and immaculate.
I've done some reading on Grand Cherokees and this one doesn't seem to suffer from most of the common issues. No electrical problems(even the dual climate control is working).
The previous owner had the engine blow around 140k and had an engine swapped in from truck(they think). It is a 4.7, but beyond that, I don't know much about it.
They said that it hasn't run right since the swap. It has ignition issues sometimes and other times it works perfectly. They'd taken it to the Jeep Dealership three times for the ignition issue and every time, it would run well for the dealership. But now, fairly consistently, only 5 of the 8 cylinders run right.
I took it to a backyard mechanic who changed all of the plugs and ignitors, then drove it without latching the hood. And guess what happened, the hood flew up and wrinkled. I wanted to kill the guy, but he bought another hood paid to have it painted.
Needless to say, he didn't fix the issue with the misfires and I didn't want him to have my Jeep anymore. I can't remember which 3 cylinders have issues off the top of my head, but it was the same cylinders misfiring, before and after he worked on it. I think it was cylinders 3, 5, and 6.
I think my next path is injectors, but before I burn any bigger of a hole in my wallet, could this have anything to do with the swapped engine fighting with the computer?
If so, how could I find out the origin of the current engine and what would be the best path take to fix it?
Thanks so much for any help!
Here it is after cleaning some of the old dirt off. It still needs to be polished.