Meant to say sensors in title.

Ok. So today after work I get in my jeep. Get up to 60, cruising along, 2k rpms. All of a sudden. I feel the jeep slightly jerk ingredients. The rims were bouncing up a couple hundred and coming down then back up. Get home and investigate. Tranny fluid was a little dirty so I drained and filled and then adjusted tv cable. Go about 10 miles woohoo! 10 miles going home though it starts to have the surging rpms again. Sensor issue? Tps or cps? Potentially worse? Gonna make a trip this weekend to get a nice multimeter and other things. Until then what else could I do? Gonna research testing all these sensors so when I get everything I'll know what to do. Any other suggestions?

 

Clean the throttle body along with the IAC. They may be starting to gum up. See where that gets you.

 

Sounds like you are losing TC lock up? If so my bet is TPS

 

Year?

 

Man cleaning the tb and iac have been on my list for awhile. I'll do that now on this 3 day weekend.

hey tackle box, I was thinking tps too. But I went out yesterday and it was good for a 30 mile trip. Regardless, I'm gonna go ahead and order one. Still gonna go this weekend and get me some tools to be able to test things. But when I was reading yesterday, most of the rpm surges involving the tps had the rpm's going down, not a couple hundred up. Gonna research more today though.

 

dr

 

1999

 

You didn't mention it, but gotta ask...

Is the check engine light on OR have you ever seen it on?

 

My rpms were going up when I was having issues. it was also somewhat intermittent FWIW.

 

never been on and nothing was stored when I checked it out.

 

and it was the tps? I'm gonna order one here in a bit. Might order all mopar sensors just to have because why not. Getting up there in miles so it might be good to have them right away instead of waiting if they were to go out. I hate waiting hahah!

 

• Quote:

  Originally Posted by Martlor13

  and it was the tps? I'm gonna order one here in a bit. Might order all mopar sensors just to have because why not. Getting up there in miles so it might be good to have them right away instead of waiting if they were to go out. I hate waiting hahah!
• Yes, at least I hope so.... lol I swapped the TPS and I've put about 200 highway miles on it since with no issues. (knocking on wood)

 

Update. So yesterday and this morning when the jeep was cold, for the initial warmup period it would jump from 2k rpms to about 2250 and stay there for about 2 seconds, come down, and then do it again. When it was warmed up it would do it less frequently. Planning on hopefully going this afternoon or tomorrow to get some proper testing tools.

 

TPS can be tested with a meter.

Always clean the IAC and throttle body first though.

This help?

 

New tps didn't fix the issue. Not even for a little bit...back to the drawing board a guess haha.