I replaced my distributor with a new one. When I started the truck, I noticed the tachometer was not working. I installed the old distributor back in the truck and the tachometer still did not work. It was working fine before all this. Any ideas of what is wrong? Thanks.

 

Make sure you have the coil wiring connected as shown in the pictures......if you do, let us know.

 

I did not have the coil wires set up correctly. Thank you for the pictures and the help, tach is working again!

 

Great! .......and you're welcome! Glad you got it working again.