Transmission is not shifting into fourth gear

Tiny
HICKMAN 1
  • MEMBER
  • 1995 JEEP CHEROKEE
  • 4.0L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 253,000 MILES
Sometimes it will not shift into fourth gear.
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have the same problem?
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No
Tuesday, January 31st, 2017 AT 5:30 PM

5 Replies

Tiny
STEVE W.
  • EXPERT
Few things to check.
When was the last time the trans was serviced (new fluid/filter)?
Is it full of fluid? Do you have any other issues relating to engine performance? This question is because the TPS provides information to the transmission control module.

The transmission in your Jeep is fully electronically controlled. One of the common items that can cause this issue is a dirty transmission gear switch aka the neutral safety switch. It is possible to clean this. Write up on that process and testing-
http://www.boyandjeep.com/tech-articles/aw4-neutral-start-switch-rebuild

Next, check the trans control cable adjustment at the throttle body.
-Open hood while vehicle is off in park.
-Find TB.
-Press and hold the transmission cable release button.
-While holding cable release button push conduit into the ratcheting cable release button.
-Hold conduit in.
-Release the cable release button.
-Open TB to wide open and the button will automatically ratchet and lock into the correct place.

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Tuesday, January 31st, 2017 AT 10:31 PM
Tiny
HICKMAN 1
  • MEMBER
Yes I appreciate your help. I checked all the things you said to do, but it still won't shift into 4th.
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Thursday, February 2nd, 2017 AT 3:07 PM
Tiny
STEVE W.
  • EXPERT
Then you will need to use a good scan tool to run the service tests on the transmission and see where the problem is. There is no real mechanical controls to adjust or test just the electronics.
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Thursday, February 2nd, 2017 AT 5:35 PM
Tiny
HICKMAN 1
  • MEMBER
Thanks, I appreciate the help.
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Friday, February 3rd, 2017 AT 4:32 AM
Tiny
STEVE W.
  • EXPERT
Thank you for using 2CarPros. Com. Tell your friends, family and anyone you like about us and please return with any auto related questions, we're here to help.
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Friday, February 3rd, 2017 AT 6:52 AM

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