The light on the dash (Speedo) works when doing the self-test at start up...but never illuminates otherwise, even if I don't shift until 5500 RPM's. Anyone know were it gets its signal from or what my be amuck? It's not a big deal but I would like it to work.

 

I actually have the same, issue I guess you could call it, mine has never worked since I've owned my truck but it does come on for a second like yours...

 

Same here, mine doesn't work either.

 

My friends 3.9 has it and it works.

We all have the newer modular motor... wondering if that has something to do w/ it or if it is just coincidence.

 

same here works on start-up but not after that

 

Works on my truck... Wish it didn't!

 

mine don't work, but i did test drive a 2000 w/ the 3.9 and it did come on... interesting to say the least

 

Yeah I wonder why it seems to only be on the modular motors (3.7, 4.7) that it does not work.

 

idk but i'm happy that i don't have a dummy light going off all the damn time i want to get a little happy with the right foot...