Drivetrain AT/MT Drivetrain discussions on the 240sx and Silvia

A/T will not upshift over 5000 RPMs

Old 01-22-2009, 02:39 PM
  #1  
Registered User
Thread Starter
 
Join Date: Jan 2009
Location: Wisconsin
Posts: 2
A/T will not upshift over 5000 RPMs

I just bought a 1989 240sx with the 2.4-litre SOHC KA24E engine and Automatic transmission. While driving the car if the rpms go over 5000 then it will not upshift. Has anybody heard of this happening and if so how can I fix it?
bf02 is offline  
Old 01-22-2009, 04:42 PM
  #2  
Registered User
 
Evans1109's Avatar
 
Join Date: Aug 2008
Location: Md
Posts: 188
Did you happen to check out your other posts on nissan.forums and nico? If not you have a good reply from a member from nico, here is his post

I would try changing the speedo sensor. What happens is the when you step on the gas hard the throttle pressure will overcome the governer pressure(relative to speed) and delay the shift then once the speed gets to a certain point the governer pressure will be more then throttle and shift you into second.
Run the codes, a code might be stored without the check engine light being on because that only turns on when the code affects emissions.

Check it out and post back.
Evans1109 is offline  
Old 01-22-2009, 08:21 PM
  #3  
Registered User
Thread Starter
 
Join Date: Jan 2009
Location: Wisconsin
Posts: 2
Thank you for the heads up. I checked out the post and replied.
bf02 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
1990sx
General
8
09-20-2005 06:30 PM
jmack240
NA Motor
7
04-29-2004 08:00 AM
oSOlo240
NA Motor
2
02-17-2004 08:03 PM
Major Mayhem
NA Motor
1
06-17-2003 12:03 AM
Sinfestboy
Turbo Motor
50
12-18-2002 05:19 PM


Thread Tools
Search this Thread
Quick Reply: A/T will not upshift over 5000 RPMs


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.