99 and I've replaced the one behind the cat and I'm checking the upstream sensor tomorrow

 

This???

 

No. It does it upon startup hot or cold for me then goes away after I drive it a little bit. O2s have been changed but rear one is throwing a code still. Tps and iac have been replaced. Along with plugs wires cap and rotor.

 

Yea thats it.

 

Just wondering. Thanks google. Lol

 

Ok I got the code pulled on my jeep and it says faulty TPS. Could this be causing my shifting problems while driving?

 

Yes

 

Thought so, where can I get a new one?

 

Any parts store or dealership.

 

Really? I didn't think a parts store would carry it. Thanks OD

 

A bad iac could easily be the culprit. But if your 400 bucks deep in parts I would guess yove checked/replaced that.

 

100%. You can get the part at any auto parts store basically. Around 35-40 bucks. Have replaced the tps in every jeep I've owned. Your tranny won't kick down if you have a bad tps also. It's held in by two torx screws on the TB. Make sure you place it on the butterfly valve the way it came off.

 

From everything I've seen on this forum... and a bit of personal experience, before you put any more money into it, open up the hood, clean and ensure the viability of every ground you can find (see https://www.cherokeeforum.com/f51/cr...7/#post2114702) then clean and seal with dielectric grease every connection you can find. Pain in the backside, but definitely worth it.

Just poured over 300$ into mine over a no start issue when all I really needed was to clean out the connection for the CPS.

Good luck, hopefully that helps.

 

and looking at the fact this issue came from a senior member, if I just made a jerk of myself, I apologize.

 

Titles come with post counts, they mean nothing. There are people in this forum with 5000 posts that can't change spark plugs.