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#87148 06/02/2003 3:15 AM
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What is the correct way to wire a tach ?I have had a few different tachs and it seems they don't last long.Thank you for any help!

#87149 06/02/2003 5:49 AM
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How many wires and what colors do you have?

Mine goes like this :
Black wire = ground
White wire = headlight dimmer switch
Red = Voltage Terminal
Green = distributor


~~ Alan Horvath
1954 Chevy Pickup
Singing his praises in the
Passing Lane
#87150 06/03/2003 5:54 AM
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What does a dimmer switch have to do with a tachometer? Are you using this connection for lighting?


"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.
#87151 06/03/2003 8:00 AM
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I'm guessing that the white wire is for the tach illumination. When I have installed aftermarket gauges, I always hook the light wire that goes to the dash lights - that way the brightness is controlled for the new gauges, just like the stock ones.


Get a REAL truck, get a GMC! www.oldgmctrucks.com
1954 GMC De Luxe COE
#87152 06/03/2003 4:52 PM
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What he said.

The dimmer switch (I'm referring to the headlight dimmer switch) controls the brightness of the bulb in the tach and all other gauges.

PS - re: your sig-line, GMCpanel -- I don't think God intended there to be religions! Just faith.
grin


~~ Alan Horvath
1954 Chevy Pickup
Singing his praises in the
Passing Lane
#87153 06/04/2003 8:44 PM
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thanks guys!


Moderated by  Jon G, Rusty Rod 

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