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Tach install ?

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Old Aug 7, 2012 | 01:57 AM
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thunderbirdcakes's Avatar
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Tach install ?

Working on a 1978 f100. While I'm working on the dash electronics I was thinking of also installing an aftermarket tach. Was wondering if I can tap into the instrument cluster or if I have to go straight to the coil. I feel like I read somewhere there is a untapped tach connection in the cluster connector (maybe green/white). Definitely could be wrong though.
 
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Old Aug 7, 2012 | 07:26 AM
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Nope, have to go straight to the coil. All ignition signalling is under the hood on this generation of trucks.
 
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Old Aug 7, 2012 | 12:13 PM
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Originally Posted by fmc400
Nope, have to go straight to the coil. All ignition signalling is under the hood on this generation of trucks.
Hmmm... that is news to me. In regards to putting in a tach, how hard is it ? & does it have instructions ?
 
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Old Aug 7, 2012 | 02:16 PM
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Originally Posted by KingBigJoe
Hmmm... that is news to me. In regards to putting in a tach, how hard is it ? & does it have instructions ?
Normal aftermarket tach wiring.
 
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Old Aug 7, 2012 | 02:33 PM
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Originally Posted by KingBigJoe
how hard is it?
Not at all.

Originally Posted by KingBigJoe
does it have instructions ?
Most should, example shown above.
 
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Old Aug 7, 2012 | 03:05 PM
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Originally Posted by gfw1985
Normal aftermarket tach wiring.
Originally Posted by fmc400
Not at all. Most should, example shown above.

Thanks for both of you guy's help. I plan on installing a tach in my truck in the somewhat near future.
 
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