i have had volt. reg problems lately my alt. was maxing out a battery tester. i think cause of that it knocked out my speedo is there a way to fix it or am i pretty well screwed

thanks in advance for your help

 

anybody have any ideas, anything would help

 

i would say on your 90 the spedo is driven mechanicaly. Check the spedo adapter.

 

I disassembled the cluster and hooked up the speedo to a 12 volt power supply and nothing I tried my fuel gauge and it work fine. Does it have to be hooked up to the sensor on the trani for it to work? I noticed that one of the resistors was a little burnt at the connection on the board don't know if that makes a difference. I also put another sensor on the trani don't know if it was good since it was used.

 

on my 89 there is a spedo cable running from the transfer case to the back of the guage cluster. It should be mechanical. Did it work before you took the cluster out?

 

its electrical its a 90 and yes it did work before

 

ok, I guess i was thinking wrong. I was thinking the electrical didnt come in until 91.5 with the pcm.

 

I think anything wih a 100 mph speedo is electrical. Check the connection at the vss on the trans

 

are there any other variables that I could try along with that so I can do it all at once?

 

ok I installed a brand new vss today and got bubkiss.the speedo still aint movin. Anybody tell whats up now?

 

anybody got any ideas about whats going on??????????
I know this isnt a cool thread about swapping engines or transmissions. BUT I STILL NEED HELP THIS IS MY DAILY DRIVER FOR MY WIFE AND 16MONTH OLD DAUGHTER!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

 

I bet the drive is toasted. Take a good look and make sure the hole the VSS shaft fits into is not all rounded out.

 

OilBurner... read this and it will give you an idea what yer lookign at adn what to check....
How the Speedometer Drive Works:
https://www.dieseltruckresource.com/d...d.php?t=198123

 

Thanks Wanna I'll take a look at that this weekend between wrecks and other tows. hey chrisreyn that link did not work is that in the sticky? I know that there is a worm gear in the tranni to control the speedo and the wear out, but is there a way if the actual speedo is bad because i noticed one of the resistors a little burnt on the back, is there a way to fix it?

thanks jeremy

 

Yea, thats an article in the stickey, dont know why it didnt work..

As far as the resistor on the curcuit board, i would imagne it could be replaced, but you'd hav eto be much better at electrical than I am.. cant give ya any advise on it..