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Old 06-12-2022, 03:15 PM   #1
Drives: working on one
Join Date: Jan 2010
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Tach bouncing around and fan staying on

I have a 16 camaro ss the tach bounces around and a day or so later the fan stays on and the temperature gauge doesn't rise. Anyone knows the fix for this problem?
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Old 06-13-2022, 10:33 AM   #2

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My fan occasionally stays on after turning off the car. I remove the negative battery cable and it stops. Happens about every 6 months or so.
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Old 06-13-2022, 11:32 AM   #3
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Temperature guage staying at zero and fans running full blast even after turning car off is solved by replacing the thermostat. Just had the same issue and it is resolved. Tach bounce is a separate issue, I have the same thing on mine, not sure of the solution for it though.
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Old 06-13-2022, 11:44 AM   #4

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Drives: 2016 1SS 6MT NPP
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Originally Posted by homesick View Post
I have a 16 camaro ss the tach bounces around Anyone knows the fix for this problem?
I don't have a suggestion for the fan issue. Other members have stated they had a bouncing tach that was fixed by adding a ground cable. Note: I added the ground cable to cure slow starter cranking on hot starts but as mentioned others fixed their tach issue with a ground cable too. Worth a shot - easy and cheap to do.

Here is my thread for doing that:


Good luck and keep us posted.
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2010 Camaro 2SS Cam/Headers/CAI/3.91 gears
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