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tach help?

Old Oct 19, 2010 | 01:17 AM
  #1  
COTY'S IROC-Z's Avatar
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From: HURLEY, VA
Car: IROC-Z
Engine: 350 VORTEC
Transmission: T-56
Axle/Gears: 4.10
tach help?

what color is the tac wire ..i thank it white but i'm not for shore! an does it have it own fuse?
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Old Oct 19, 2010 | 01:49 AM
  #2  
Apeiron's Avatar
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: tach help?

IIRC, it's white. There's no fuse.
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Old Oct 19, 2010 | 02:33 AM
  #3  
COTY'S IROC-Z's Avatar
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From: HURLEY, VA
Car: IROC-Z
Engine: 350 VORTEC
Transmission: T-56
Axle/Gears: 4.10
Re: tach help?

i plug mine up an i can git it to work are they a ground for it an were it if they are one?
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Old Oct 19, 2010 | 09:37 AM
  #4  
Apeiron's Avatar
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: tach help?

No dedicated ground for it.

Are you trying to get the factory tach to work, or an aftermarket one?
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Old Oct 19, 2010 | 06:09 PM
  #5  
COTY'S IROC-Z's Avatar
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From: HURLEY, VA
Car: IROC-Z
Engine: 350 VORTEC
Transmission: T-56
Axle/Gears: 4.10
Re: tach help?

factory i done the v6 to v8 swop with msn 7AL box i have tryed pluging it in to the msn box an on the distributor.. inty idea why it wont work?
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Old Oct 19, 2010 | 09:10 PM
  #6  
Apeiron's Avatar
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Joined: Jan 2000
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: tach help?

If you tried it on the distributor first, you've probably fried the tach.
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Old Oct 19, 2010 | 10:06 PM
  #7  
COTY'S IROC-Z's Avatar
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From: HURLEY, VA
Car: IROC-Z
Engine: 350 VORTEC
Transmission: T-56
Axle/Gears: 4.10
Re: tach help?

what can i do to fix it?
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Old Oct 19, 2010 | 10:14 PM
  #8  
Apeiron's Avatar
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Joined: Jan 2000
Posts: 20,981
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: tach help?

Replace the tach
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Old Oct 19, 2010 | 10:35 PM
  #9  
COTY'S IROC-Z's Avatar
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Joined: Mar 2010
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From: HURLEY, VA
Car: IROC-Z
Engine: 350 VORTEC
Transmission: T-56
Axle/Gears: 4.10
Re: tach help?

well that sucks .. like when i start it in go up to 500 rpm an stays there
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Old Oct 19, 2010 | 10:42 PM
  #10  
Apeiron's Avatar
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Joined: Jan 2000
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: tach help?

500 RPM isn't your normal idle speed?
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Old Oct 20, 2010 | 12:28 AM
  #11  
COTY'S IROC-Z's Avatar
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From: HURLEY, VA
Car: IROC-Z
Engine: 350 VORTEC
Transmission: T-56
Axle/Gears: 4.10
Re: tach help?

if is was tor up it wouldnt do any thing would it?
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