RE: 97 Cherokee transmission service

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97 Cherokee transmission service

in automotive •  6 years ago 

What its doin is if I put it in drive it doesnt wanna go. If i drop it down in 1st manually it goes and I can shift it out that way.

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Sounds like you need a transmission diagnostic from someone you can trust not to sell you a rebuilt that you don't need yet. I found a trustworthy trans shop near me by going to car talk .com. They did car repair help radio talk shows for decades, Click & Clack, noisy tappets. Here is a link to find a good shop near you https://www.cartalk.com/mechanics-files just put in your location and find a good shop from reviews. A trans shop can plug into your trans and see exactly what the problem is, replace the switch, sensor whatever and get you going. You just need to find a trustworthy local trans shop that won't cheat you. Cartalk has good repair archives online that you would like to read. Is great learning material.

Was it doing this before you changed the fluid? Are you checking fluid level, idling in NEUTRAL cause in park always shows full? I watched a complete teardown of your tranny on youtube and way too many parts for me. It is a Toyota trans and used in the Tacoma. I have rebuilt engines but never been ambitious enough to do do an automatic transmission. Nope, not doing that.

Yes, fluid levels were good. Was driving it then all the sudden its like it wasnt downshiftin when put in drive. I stopped at a stop sign then when i went to take off it wouldnt go. Dropped it down into 1st 2nd and it went.

Thanks for the symptom with what it was doing. I looked that up and is common on Jeep cause lots of people with a no downshift trans issue. You also need to check the TPS throttle position sensor for proper voltages with a voltmeter as this controls the tranny shifting. The TPS voltages are into the ECU not the TCU trans controller. Also found a few links you should read.
https://www.wranglerforum.com/f282/transmission-wont-downshift-help-817970.html
http://midsouthjeeps.com/forum/topic/260-automatic-transmission-wont-downshift/ this is about a plugged vent hole (plugged with mud)
https://www.jeepforum.com/forum/f310/won-t-downshift-stop-1201294/
governor pressure solenoid and sensor, under filter tray that you just did

So this is 3-4 more things to check. Lots of other people have had this problem too. good luck.