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Old April 27th, 2013, 07:35 AM
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Cool tick tock tach
Hi everyone,

My clock works but not the tach. Can anyone help with troubleshooting procedure?
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Old April 27th, 2013, 08:23 AM
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First question, has the tach ever worked? If so, check the feed wire connection at the coil. If all ok, the circuit board is probably bad..
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Old April 27th, 2013, 11:05 AM
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Originally Posted by 455 Olds 442
Hi everyone,

My clock works but not the tach. Can anyone help with troubleshooting procedure?
There is a complete troubleshooting guide for the Tic Toc Tach in the Chassis Service Manual. Electrical section: 15-6 and service procedure starting on Page 15-24
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Old May 6th, 2013, 06:33 AM
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Thanks, found it.
Originally Posted by Allan R
There is a complete troubleshooting guide for the Tic Toc Tach in the Chassis Service Manual. Electrical section: 15-6 and service procedure starting on Page 15-24
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Old May 7th, 2013, 04:26 PM
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Your'e probably one of a few that has a working clock, but not the tachometer! Mine is the other way (stuck on 4:42 though)!
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Old May 8th, 2013, 05:29 AM
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Originally Posted by shatrab
Your'e probably one of a few that has a working clock, but not the tachometer! Mine is the other way (stuck on 4:42 though)!
Yea, I get the impression that anyone who could sell clock mechanisms for vintage cars would do well! Vettes are notorious.
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Old May 9th, 2013, 03:05 AM
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The brown wire for the tach should have a 'small / short' two amp inline fuse, under the dash, close to the tach body...
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