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03-09-2009, 03:12 PM
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#1 |
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425hp409
 
Join Date: Oct 2008
Location: Prosper Texas
Posts: 841
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68 Tachometer problem
I installed a tach dash when I restored my truck recently. The problem I have is that it reads about twice the RPM as actual. I connected the tach wire to the negative side of the coil as is the normal procedure. Any help would be appreciated.
Charles |
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03-09-2009, 04:14 PM
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#2 |
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All stock and staying that way
Join Date: Jul 2003
Location: Elkland, PA
Posts: 1,860
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Re: 68 Tachometer problem
There were 6 and 8 cylinder tachs. Make sure that you have the correct one.
__________________
1970 K/5 Blazer CST 4WD, Medium Bronze, 93k ACT. miles, 350, 4 speed, rear positraction, 16.5" x 8.25" HD wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration finally getting close to completion..  1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor...  2017 Sierra 1500 SLT 4WD, Black, 45k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 62k miles, 3.6, 8L45, 3.23 LS, 18" wheels |
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