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-   -   05 1500hd vehicle speed sensor problem (https://www.performancetrucks.net/forums/8-lug-truck-performance-149/05-1500hd-vehicle-speed-sensor-problem-540011/)

RustyD Oct 1, 2015 08:37 AM
05 1500hd vehicle speed sensor problem
 
Recently had my 4l80e and np246 rebuilt. Installed myself and both were working flawlessly. Started noticing my speedo would start jumping around 60mph and the abs and brake lights would come on. All of that would clear the next time i cranked it. Now the speedo will not work at all and the abs and brake lights stay on with the "service brake system" message on the instrument pannel. Took it to the guy who rebuilt my trans and he hooked it up to his computer and it showed a bad vss. Ive replaced all three in in the transfer case and disconnected the battery in hopes it would all reset. Still no speedo and abs and brake light still come on. The trans acts like its in safe mode and doesnt want to shift out of first. Whats next?

This is my first time posting but I've received a world of info from this site!

Flewbyu123 Apr 9, 2016 05:18 AM
Originally Posted by RustyD (Post 5315226)
Recently had my 4l80e and np246 rebuilt. Installed myself and both were working flawlessly. Started noticing my speedo would start jumping around 60mph and the abs and brake lights would come on. All of that would clear the next time i cranked it. Now the speedo will not work at all and the abs and brake lights stay on with the "service brake system" message on the instrument pannel. Took it to the guy who rebuilt my trans and he hooked it up to his computer and it showed a bad vss. Ive replaced all three in in the transfer case and disconnected the battery in hopes it would all reset. Still no speedo and abs and brake light still come on. The trans acts like its in safe mode and doesnt want to shift out of first. Whats next?

This is my first time posting but I've received a world of info from this site!
Did you ever find a fix to your problem?

5.3Colorado May 23, 2016 06:56 PM
has anyone ever seen this and is it normal
 
Hey guys new to the LS world and was tearing into my 5.3 and found these. are they normal? guy I bought it from says he has them in his block too
https://cimg7.ibsrv.net/gimg/www.per...d43f02160a.jpg

FFDP May 23, 2016 07:02 PM
Perhaps start your own thread, might get you more answers.

Seeing how this was a question about a speed sensor at first.

5.3Colorado May 23, 2016 07:04 PM
Originally Posted by FFDP (Post 5362143)
Perhaps start your own thread, might get you more answers.

Seeing how this was a question about a speed sensor at first.
sorry about that, thought I had started my own


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