Tach Filter - Curious about 3 plugs
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Melting Slicks
Joined: Jul 1999
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From: Charlotte NC
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Tach Filter - Curious about 3 plugs
So I am in the process of fixing some electrical issues, the tach filter being one of them. On my 84 (and C3s) I notice that the tach filter has three electrical connection ends, but to my knowledge, one of the connectors has not been used, yet the tachometer still works. Anyone know why these original tach filters have three ends?
Safety Car
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TPI engines only have 2 wires on a metal can ( capacitor ) type filter.
Last edited by vetteoz; Nov 19, 2010 at 08:22 PM.
Thread Starter
Melting Slicks
Joined: Jul 1999
Posts: 2,676
Likes: 0
From: Charlotte NC
Cruise-In I Veteran
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Yes makes sense, I notice that aftermarket replacements there are only two connections. I can tell that the extra connection probably has not been used in 26 years as it was dusty. Can't wait to get my new part in, then I can see my tach again.
