I have a 1990 4.0 AW4 Cherokee. A few weeks ago I took off my throttle body and cleaned it real good with some carb cleaner. About a week or two later I notice that the Jeep intermittently acts like it doesn't know which gear to go into. It has only done this a few times..
A couple weeks later, I got stuck in mud real bad, and it took about 30 yanks to free the Jeep. Now over the next couple of days, I noticed the Jeep acting funny again.
It's real hard to describe what it does, and I doubt someone would really notice it if they didn't drive this Jeep daily. While accelerating, sometimes it will act, and sound, as if the gas had been let off. It has been doing this quite a bit over the last week. I have not seen a change in the RPMS while this is happening, but I do feel it happen throughout the Jeep.
Here's a pretty crude example that may describe what I'm trying to say better... when accelerating, the engine goes like this normally:
(pretend "grrrrr" is the sound of the engine...)
Grrrrrrrrrrrrrrrrrrrrrrrrrr
Now when this happens, it seems to sound like:
Grrrrrrrr--rrrrrrrrrrrrrrrr
Sorry if that looks confusing, but it's the best way I can think of to describe what's happening.
Going with the advice from the Jeep forums, I had my throttle position sensor swapped out with a new one from Napa.
The problem still remains... any ideas?
A couple weeks later, I got stuck in mud real bad, and it took about 30 yanks to free the Jeep. Now over the next couple of days, I noticed the Jeep acting funny again.
It's real hard to describe what it does, and I doubt someone would really notice it if they didn't drive this Jeep daily. While accelerating, sometimes it will act, and sound, as if the gas had been let off. It has been doing this quite a bit over the last week. I have not seen a change in the RPMS while this is happening, but I do feel it happen throughout the Jeep.
Here's a pretty crude example that may describe what I'm trying to say better... when accelerating, the engine goes like this normally:
(pretend "grrrrr" is the sound of the engine...)
Grrrrrrrrrrrrrrrrrrrrrrrrrr
Now when this happens, it seems to sound like:
Grrrrrrrr--rrrrrrrrrrrrrrrr
Sorry if that looks confusing, but it's the best way I can think of to describe what's happening.
Going with the advice from the Jeep forums, I had my throttle position sensor swapped out with a new one from Napa.
The problem still remains... any ideas?