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Gear Problems

Tiny
DHEERAJ11
  • MEMBER
  • 2003 NISSAN SUNNY
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 95,000 MILES
Hi, I have a Nissan Sunny, 2003 model, Gulf Specifications. It has run for around 95000 kms, and around a month back a problem with the gear arose. It is a Automatic gear and when I drive the car, it gets stuck on the first gear i.E. The gear does not shift to the second gear. It does not occur every time but it does take place once a while. I usually resolve it by either halting the car and starting the ignition again or it shifts after a while after decelerating and again accelerating.
I consulted a few garage's and some say to change the gear oil while some say there is a sensor problem.
Could anyone please advice me on this situation as it would be of great help.
Thank You!
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Tuesday, March 8th, 2011 AT 10:59 PM

14 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check and test the throttle position and vehicle speed sensor. Also there are shaft speed sensors that sounds like have gone bad as well. We should start by checking the codes here is a guide to help us get started.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

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Tuesday, March 8th, 2011 AT 11:34 PM
Tiny
DHEERAJ11
  • MEMBER
  • 2 POSTS
Thanks a lot for the early reply.
Do you have any clue how much would the testing and replacement cost?
Thank You once again!
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Wednesday, March 9th, 2011 AT 8:08 AM
Tiny
USMANRAJA
  • MEMBER
  • 1 POST
Salam dear
I have the same problem with my car nissan sunny 2002 :(
Have u found any solution for this problem?
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Sunday, June 8th, 2014 AT 8:07 AM
Tiny
SAMEERCH
  • MEMBER
  • 6 POSTS
Dears
I too have the same problem. Have you found any solution
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Friday, February 2nd, 2018 AT 12:40 AM
Tiny
DHEERAJ11
  • MEMBER
  • 2 POSTS
I figured out by scanning the car that the input shaft speed sensor went out once I replaced it everything works great.
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Sunday, February 4th, 2018 AT 12:54 PM
Tiny
SAMEERCH
  • MEMBER
  • 6 POSTS
Thank you dheeraj for your reply. When I enquired in the spare parts shops about the shaft speed sensor they don't understand. Can you share me a picture or any other details.
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Monday, March 19th, 2018 AT 7:27 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
Hello,

Yes the revolution and turbine speed sensors can cause all kinds of problems here are their location.

Check out the diagrams (Below)

Please let us know what happens.

Cheers, Ken
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Monday, March 19th, 2018 AT 11:04 AM
Tiny
SAMEERCH
  • MEMBER
  • 6 POSTS
Thank you ken for the help. But which is the one mentioned by dheeraj
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Tuesday, March 20th, 2018 AT 4:26 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
It should be the turbine speed sensor.

Let me know what happens
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Tuesday, March 20th, 2018 AT 4:25 PM
Tiny
SAMEERCH
  • MEMBER
  • 6 POSTS
I went to the nissan main spare parts shop here in qatar. They have only one revolution sensor with them which cost around 190 dollar(684 qatar riyal) and they are not sure it is input or output sensor
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Thursday, March 22nd, 2018 AT 12:31 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
If you have a scanner that can read the sensor values you can read real time data to see if they are working.
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Thursday, March 22nd, 2018 AT 10:18 AM
Tiny
SAMEERCH
  • MEMBER
  • 6 POSTS
I went to carmax here in qatar for computer scanning. They couldn't find any fault code. They said the problem might be with the gear box
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Friday, March 30th, 2018 AT 4:11 AM
Tiny
SAMEERCH
  • MEMBER
  • 6 POSTS
Is that sensor also known as camshaft sensor?
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Friday, March 30th, 2018 AT 5:25 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
No the turbine sensor is down on the transmission. Here is a video of one being replaced.

https://youtu.be/f3bETtCIdxM

let me know what happens.
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Friday, March 30th, 2018 AT 10:40 AM

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