Jump to content
Brendan Corr

2002 2500hd Gear Indicator not showing correct gear/ slow to move

Recommended Posts

Hello all, my 2002 2500hd with the 6.0l and 4l80e stopped showing the correct gear. My first thought was to replace the NSS and after melting hot glue to change it, it is still broke. The truck will show park if you just get in and start it. When i pull the lever down it goes to reverse and stops unless i take the selector down to 1st gear, then the indicator rapidly moves down to first, and if you just click the truck into drive, sometimes the indicator will move down after a little bit of driving. The reverse lights will come on while in reverse whether or not the indicator shows reverse. The truck drives like normal, and doesn't shift any different. Also, the doors stopped auto locking and unlocking. Any help is appreciated! 

Share this post


Link to post
Share on other sites

Maybe there is a problem with the NSBU (the plastic blob hanging off the driver's side of the 4l80e)?  If you get access to a more advanced code reader, that can get codes from the transmission, bcm and i/p, might give you an idea of what the problem is...

Share this post


Link to post
Share on other sites
5 hours ago, davester said:

Maybe there is a problem with the NSBU (the plastic blob hanging off the driver's side of the 4l80e)?  If you get access to a more advanced code reader, that can get codes from the transmission, bcm and i/p, might give you an idea of what the problem is...

i replaced the NSS first and nothing happened. I just dont understand why the truck shows the wrong gear, if i put the lever into reverse, the indicator wont show reverse but the reverse lights will come on.

 

 

Share this post


Link to post
Share on other sites

You could try installing a used instrument panel from a junkyard to see if it's the i/p that's gone bad (shouldn't be that expensive)

 

But an advanced code reader is probably what you'll need to figure it out, to avoid just throwing parts at it.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.