Okay so my xj has 196k on it and recently when im cruising arount 25-45mph my trans will go into like its in netural for a sec the go back into drive. When my rpms are at 1500 and to problem shows it wi jump to 2000 rpm then back down to normal. Whats going on is my tranby going out or a common issue... . Help

 

Might check the TPS for starters. Any other symptoms?

 

I wouldn't say your tranny is going out....is yours an auto? If so, the throttle sensor could be to blame. Autos have 2 connectors on the TPS, the square one is for the TCU, with is for the tranny.

 

Something else you could do, is clean all connections and grounds first before buying parts if needed.

 

Also adjust throttle valve cable.

 

+1


Also check your trans fluid. Is it clean and red? Burned & brown?


Your symptoms could be a lot of things. Got to start doing some basic tests to find out.

 

Only one connector in 91 and later.

 

Here's how:



https://www.cherokeeforum.com/f2/free-quick-fix-41821/

Also, click on my link below and do post # 10

 

Learn something new everyday.

 

You're just stuck in the Renix zone!! LOL.

 

Changed fluid and trans filter. Adjusted tv cable about month ago. I do have a irratic idle it jumps up n down a little could that be my tps

 

And that erratic TPS also affects your shifting.........

 

Okay so I just reset my pcm. By disconnecting my pos cable and touching it to my ac compresser for 30sec then reconnect and turn key on not start then turn headlights on then off snd turn ign off. Then I started it and drove it for a bit till it warmed up about 30min of driving. It seem to drive a lot better better shifting points. But just a little irratic idle. I wrote a thread about my jeep geting bad mpg. I changed my map sensor upstream oxy sensor but I never disconnected my battery when I did this could doing this cause my pcm to be thrown off thinkibg it still had the bad sensors on not the new resulting in bad mpgż