Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

wiring up my tach

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Old Mar 25, 2009 | 09:00 AM
  #1  
joker0907's Avatar
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From: Indiana
Car: 1991 camaro rs, 2001 buick century
Engine: 305, 3.1
Transmission: T-5
wiring up my tach

ok i dont know if im getting all the defective tachos or not but im having the worst problem with it. I got it fused with the radio and the wire going into the coil wire that its supose to be and a good ground and nothing no zeroing out or nothing on one of the tachs and the other one just turns on it goes from 0 to 9000 then back to 7k and sits there and doesnt move... ive tried even direct conecting them to batt and the coil and still nothing am i doing something wrong or just getting all the defective tachs...
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Old Mar 25, 2009 | 10:42 AM
  #2  
NINÅ's Avatar
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From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56

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What tach did you get?

Brand, model number.



Happy Racing!

If People Drove Any Slower They’d Be Going Backwards


Fog lights are not driving lights. Keep em turned off slow pokes.

How bout those dorks too scared to drive without headlights on in the daytime!

.
.
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Old Mar 25, 2009 | 10:55 AM
  #3  
joker0907's Avatar
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From: Indiana
Car: 1991 camaro rs, 2001 buick century
Engine: 305, 3.1
Transmission: T-5
Re: wiring up my tach

well the first one i tried was a sunpro with the shift light on it the other one was just a cheapo from auto zone without a light
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Old Mar 25, 2009 | 11:19 AM
  #4  
NINÅ's Avatar
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Joined: Jan 2006
Posts: 3,341
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From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56

.
.



The odds of having purchased two separate defective tachs is about zero.

Without the model number we cannot provide exact details.

However many tachs have a:

GROUND

ILLUMINATION TERMINAL

TACH TERMINAL

12 VOLTS IN TERMINAL

We suggest you have a friend give you some in person assistance.

Also, you might want to buy one from a speed shop.

It might cost more, but there are people there that “turn the wrenches” and should be able to point out what wires go where.

You don’t want to hook it up wrong because you might damage it.



Happy Racing!

If People Drove Any Slower They’d Be Going Backwards


Fog lights are not driving lights. Keep em turned off slow pokes.

How bout those dorks too scared to drive without headlights on in the daytime!

.
.
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Old Mar 25, 2009 | 12:01 PM
  #5  
Atilla the Fun's Avatar
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From: Northern Utah
Car: seeking '90.5-'92 'bird hardtop
Engine: several
Transmission: none
Axle/Gears: none
Re: wiring up my tach

Some tachs require you to use the GM filter that should be hidden in your dash.
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Old Mar 25, 2009 | 12:09 PM
  #6  
billybob6110's Avatar
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From: alliance, ohio
Car: 1984 chevy camaro
Engine: 355
Transmission: turbo 350 2800 stall
Axle/Gears: 3:73 detroit locker posi
Re: wiring up my tach

my filter was mounted on the firewall behind the distributor.
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Old Mar 25, 2009 | 12:15 PM
  #7  
joker0907's Avatar
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From: Indiana
Car: 1991 camaro rs, 2001 buick century
Engine: 305, 3.1
Transmission: T-5
Re: wiring up my tach

i turn wrenches... and i have hooked tachs up before but i have tried 2 camaros now a 89 and 91 and both do not seem to work for some reason so i called in my friend that works at a restoration shop and he said its all wired correctly and he believes that i actually recieved 2 defective tachs....
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Old Mar 25, 2009 | 12:16 PM
  #8  
joker0907's Avatar
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Joined: Mar 2009
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From: Indiana
Car: 1991 camaro rs, 2001 buick century
Engine: 305, 3.1
Transmission: T-5
Re: wiring up my tach

the filter thing i did not know about can you explain more about the filter?
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Old Mar 25, 2009 | 12:36 PM
  #9  
NINÅ's Avatar
Supreme Member
 
Joined: Jan 2006
Posts: 3,341
Likes: 10
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56

.
.



Re: Filter.

As long as you hooked up the wire the used to go the original tach you are using the appropriate wire.

You want a direct feed from the TACH TERM which originates near the distributor.



Happy Racing!

If People Drove Any Slower They’d Be Going Backwards


Fog lights are not driving lights. Keep em turned off slow pokes.

How bout those dorks too scared to drive without headlights on in the daytime!

.
.
Reply
Old Mar 25, 2009 | 03:06 PM
  #10  
joker0907's Avatar
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Joined: Mar 2009
Posts: 119
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From: Indiana
Car: 1991 camaro rs, 2001 buick century
Engine: 305, 3.1
Transmission: T-5
Re: wiring up my tach

ya i have that i really dont know whats up im going to buy another tach and figure out if that one works.
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Old Mar 25, 2009 | 03:20 PM
  #11  
Ca[maro]88's Avatar
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Posts: 990
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From: Peoria, IL
Car: 1988 Camaro Sport Coupe
Engine: 5.0 305 Carb'd
Transmission: 700R4
Axle/Gears: 3.23
Re: wiring up my tach

i hooked mine up to the radio fuse, a ground to the firewall, and the wire on the "tach" part of the distributer and mine works fine. i have a "equus" from o'reillys. its a 3 3/8 in dash tach. it cost 70 bucks.
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Old Mar 25, 2009 | 04:13 PM
  #12  
Shadygrady's Avatar
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From: Flowood,MS
Car: 87 IROC Z
Engine: 5.7 L98 TPI
Transmission: 700r4,2500 stall
Axle/Gears: G80,10 bolt 3.42's
Re: wiring up my tach

Every tach I`ve wired up on my camaro or chevy truck has had ground,power wire for light and a wire that connects to the tach lead at the coil.Pretty simple and I`m no mechanic.Ive never needed a filter.
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