1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Tach and cold weather.

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Old 03-25-11, 08:50 PM
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Tach and cold weather.

My tach doesn't seem to work at all until the engine warms up a bit, is this normal? (It's presently 20 degrees outside, and the tach works fine when it's warmer.)
Old 03-25-11, 08:53 PM
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Thats odd my tach works all the time even in Chicago winter. lol
Old 03-25-11, 08:54 PM
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Mine did the same thing on the few cold morning i drove it to work in november. As the car got warmer inside and under the hood it would come back to life. Not really sure what causes it but I didnt really mind. I drive by sound anyway. Just shift when the buzzer goes off, youll be fine lol
Old 03-25-11, 08:57 PM
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Mine does it, too. I read somewhere that it's due to condensation causing the fluid in the tach to gel up. Dunno if that's accurate.
Old 03-25-11, 08:58 PM
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such fast responses! Thanks guys, that calms my nerves. And I shift WAY before the buzzer!
Old 03-25-11, 09:09 PM
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You're doing it wrong lol
Old 03-25-11, 11:22 PM
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I barely get 20mph from shifting 2nd to 5th asap. I don't want to fathom how much more gas i'd waste waiting for the buzzer.
Old 03-25-11, 11:26 PM
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mpg, not mph
Old 03-25-11, 11:54 PM
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yep add another member to "that happens to my 7 too" club
Old 03-26-11, 12:04 AM
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I had a cold blooded FB tach too.
Old 03-26-11, 12:18 AM
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I have noticed this as well when the temperature drops blow 20*to 30*c, mine doesn't move till it warms up IE motor or interior temperature. I have also wondered if there is a remedy for this. just gives me a reason not to drive till the thermostat opens or choke drops
Old 03-26-11, 12:36 AM
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Originally Posted by -Gamah
I barely get 20mph from shifting 2nd to 5th asap. I don't want to fathom how much more gas i'd waste waiting for the buzzer.
Quit complaining. My FB gets like half your mileage and it requires premium fuel and premix.
Old 03-26-11, 12:47 AM
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not only does my tach not want to work when it's really cold, but the buzzer sounds at the same time like it's stuck at red line, then stops once the tach starts working again. soooo aggravating.
Old 03-26-11, 01:47 AM
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Originally Posted by PercentSevenC
Quit complaining. My FB gets like half your mileage and it requires premium fuel and premix.
yours probably also has half a 0-60 time
Old 03-26-11, 09:46 AM
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Originally Posted by FunK73
You're doing it wrong lol
Lol if your buzzer still works your doing it wrong. I'm so glad mine was disable when I bought the car. Btw my tech acts funny when it's cold too.
Old 03-26-11, 10:14 AM
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I cant hear it over the induction and exhaust anymore no worries lol
Old 03-28-11, 02:32 PM
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Mine does it too
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