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Old 08-30-2018, 07:16 PM   #1
82sdale
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Join Date: Aug 2016
Location: houston tx
Posts: 17
anybody know anything about tachs

got this tach that wont return to zero (0). it will move with the engine rpm but without returning to zero thats almost useless. returns to 2000 at idle. took it out and even disconnected it creeps up. part number is 5659780 and has ‘8 cylinder’ stamp. thanks for any assistance.
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