How do you hook up a tach?
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Senior User
Joined: Aug 2002
Posts: 170
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From: MI
How do you hook up a tach?
My 84 f-150 did not come with a tach. After all the stuff ive done I would like to have one BUT have no idea how to hook one up. Is it easy and are there any good brands or a certin tach i should buy?
Thanks,
Alpine
Thanks,
Alpine
Elder User
Joined: Oct 2002
Posts: 516
Likes: 1
From: La Crosse, WI
How do you hook up a tach?
I have a 78' ford f150 and I installed a 4" autometer tach. I mounted it on the dashboard off to the far left, I love it! Usually the tachs I have seen have four wires, there is a ground, illumination, power, and one more wire that goes to the coil. There should be a spot on your coil that is labeled "tach" you just stick the wire up in there and your done, pretty easy. Good luck!
Posting Guru
Joined: Jun 2001
Posts: 1,208
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From: Conyers
How do you hook up a tach?
>Just install an OE tach (from a junkyard or maybe Jeff's
>Bronco Graveyard) into your cluster - it's already wired for
>it.
That's EXACTLY what I did to my truck. Best $25 and 15 minutes I've spent on my truck.
>Bronco Graveyard) into your cluster - it's already wired for
>it.
That's EXACTLY what I did to my truck. Best $25 and 15 minutes I've spent on my truck.
New User
Joined: Nov 2002
Posts: 8
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From: Wichita USA
How do you hook up a tach?
for almost all aftermarket tach's you have 4 wires
red: 12v switched power supply
black: 12v negative ground
white: wire this into your dash lights
green: this is the actual lead that tells the tach when the
motor fires, on your truck tap into the negative
Side of the coil.
That's all!!!
red: 12v switched power supply
black: 12v negative ground
white: wire this into your dash lights
green: this is the actual lead that tells the tach when the
motor fires, on your truck tap into the negative
Side of the coil.
That's all!!!
Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
How do you hook up a tach?
The green wire can go to the tach feed to the OE instrument cluster. You don't have to run thru the firewall again. It's already there & waiting for you.
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