Transmission slips into low gear

Tiny
DSTRAIN
  • MEMBER
  • 2001 INFINITI I30
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 150,000 MILES
When the outside temperature is over eighty degrees and car is driven half an hour or more in stop and go traffic, instead of shifting into higher gear, it shifts back to low gear. Will stay there until I stop and turn off the engine. After engine off for about fifteen minutes and restarted transmission shifts fine, until the next time under above circumstances. It has been doing this for two summers now a total of maybe ten times it has never done in in the winter even on long trips with driving in traffic and most summer driving is limited to to and from work (ten miles one way).

Dave
Saturday, June 19th, 2010 AT 11:09 AM

2 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi Dave,

This sounds like you have a revolution speed sensor that is going out which may or may not set a code.

Here is a video of one being replaced and the diagrams below to show you what it will be like on your car:

https://youtu.be/f3bETtCIdxM

Check out the diagrams (below). Please let us know what happens.

Cheers
Was this
answer
helpful?
Yes
No
Tuesday, June 22nd, 2010 AT 8:49 AM
Tiny
JOOLSSD
  • MEMBER
  • 0 POST
I had this problem as well. The sensor fixed it. I paid a shop to do it for $230.00.
Was this
answer
helpful?
Yes
No
Wednesday, June 13th, 2018 AT 3:36 PM

Please login or register to post a reply.

Sponsored links