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Transmission not shifting correctly.

Tiny
GUEST037
  • MEMBER
  • 2002 TOYOTA LANDCRUISER
  • 4.5L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 140 MILES
Hi,

Transmission jumping first to third mostly. Sometime works properly. I think it is electric component failed, could be solenoid or one of sensors.
Tuesday, January 9th, 2018 AT 6:34 AM

7 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
I would suggest getting a diagnostic scan performed to check for trouble codes and if any found, it would help in determining possible causes for the problem.
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Wednesday, January 10th, 2018 AT 7:19 AM
Tiny
GUEST037
  • MEMBER
  • 4 POSTS
OBD not supported for this vehicle Toyota Land cruiser 2002 Engine 1fz Transmission A442A. When it's jump to from 1st to 3rd. Kickdown won't work till I stop.
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Wednesday, January 10th, 2018 AT 11:28 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
It sounds like you have a shaft speed sensor that is going out. Here is the locations so you can check it out. Also the shift solenoid could be shorting out as well. Here is a transmission wiring diagrams so you can check signals to the shift solenoids.

https://www.2carpros.com/articles/how-to-use-a-voltmeter

and

https://www.2carpros.com/articles/how-to-check-wiring

Check out the diagrams (Below)

Please run some tests and get back to us.

Cheers, Ken
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Friday, January 12th, 2018 AT 6:27 PM
Tiny
GUEST037
  • MEMBER
  • 4 POSTS
The job has been done perfectly. The problem was solved.
Thanks Bro.
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Saturday, January 20th, 2018 AT 2:02 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Good to hear can I ask if the speed sensor fixed it?
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Saturday, January 20th, 2018 AT 12:53 PM
Tiny
GUEST037
  • MEMBER
  • 4 POSTS
Wiring connector was failed
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Saturday, January 20th, 2018 AT 9:01 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Nice work, we are here to help, please use 2CarPros anytime.

Cheers, Ken
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Sunday, January 21st, 2018 AT 12:38 PM

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