View Single Post
  #11 (permalink)  
Old 11-10-2016, 09:51 AM
patrickt's Avatar
patrickt patrickt is offline
Half-Ass Member
Visit my Photo Gallery

 
Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,005
Not Ranked     
Default

Quote:
Originally Posted by wstaab View Post
Problem is no power to the red/white wire that supplies the tachometer bulb.
The red/white wire is connected to a ground somewhere because is checks for continuity.
If you can't easily find the glitch in the harness itself, I would just cut the wires, tape off the sides going to the harness, and then run a clean feed from one of the gauge bulb feeds that works properly, along with a nice clean ground feed. Remember, a hot side feed to a filament bulb will show continuity to ground (through the filament) when there is no 12v+ on it.
Reply With Quote