I picked up my 88 C15 with a Turbo 400 transmission installed. The tranny has the cable speedo port and the truck has an electronic speedo.
After talking to my tranny guy, I picked up a pulse generator that screws into the cable speedo port on the tranny and generates the pulse that the vss would in a stock setup.
Here's a link to that pulse generator:
http://www.ezwiring.com/store/viewitem.php?productid=74
The wiring all the way to the plug at the back of the gauge cluster appears to be good.
I pulled the gauge cluster to clean it up and see if anything needed repair, but found nothing to fix.
After all that, the speedo still doesn't work. Any ideas what I can look into next?
Thanks.
After talking to my tranny guy, I picked up a pulse generator that screws into the cable speedo port on the tranny and generates the pulse that the vss would in a stock setup.
Here's a link to that pulse generator:
http://www.ezwiring.com/store/viewitem.php?productid=74
The wiring all the way to the plug at the back of the gauge cluster appears to be good.
I pulled the gauge cluster to clean it up and see if anything needed repair, but found nothing to fix.
After all that, the speedo still doesn't work. Any ideas what I can look into next?
Thanks.