Have a 95 F150, 5.0. Am trying to install aftermarket tach. Instructions say to hook the red wire to a system that is only hot in run position. Have been going nuts trying to find a lead under dash. Does anyone know which lead fits the bill.
Thanks

 

It's not under the dash it's under the hood. There is a small rectangle box with lots of wires going into it. The yellow with brown stripe is the one I hooked mine up to. Give me untill 4ish and I'll post up pics of what I did to mine I'm in diesel tech right now.

 

Great info thanks, kinds know now why I could not find a lead. Was looking in wrong place. Snowing to hard to finish it up today. So will go search the wrie tommorrow, again thanks

 

No prob I'll post a pic after bit showing where I hooked mine up.

 

Plenty of places under the dash, you just need a voltmeter to find one.

 

I hooked mine up under the dash

 

Try the fuse box. The fuse for the dual tank selector switch is only hot in run, and if your truck is like mine, you have no inclination to fix the back tank

 

Here is the pics

 

Yep welder. I will be able to find the wire now, I am using the same tach you installed.
Will also look at the fuel tank selector wire. Both my tanks work so maybe can just splice into the wire. Never know till I try.

Also, is there any way to get the single wires out of a multy plug. Would make splicing so much easier to just pull the wire and soder the splice close to the connecter.
Again thanks all

 

I hope your not talking about splicing the tach wire to the tank selector switch