86 iroc tach problem

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05-09-2009, 06:02 PM

gaskincrew

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Join Date: Apr 2009

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86 iroc tach problem

my tach is reading way to high, it works but when im 3000 its showing 7000 , works but way to high , Maybe the tach bad?,, its a 5.7 and has the bulky hei dist.

05-10-2009, 09:47 AM

djs383

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Location: Arizona

Posts: 819

Check the tach filter, ive seen those wire deteriorate and cause bad readings.

05-10-2009, 04:04 PM

gaskincrew

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where and what is a tach filter?

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