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Tach stopped working


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I have a 95 Mystique LS, V6 AT, 36xxx miles. While driving today, the tack stopped reading engine rpms. While normal driving at about 2800rpms, it jumped up to 3000rpms and stayed there. Banged on the dash (always worked for my 73 Mustang), but it only flipped over to the right. Turned engine off, it returned to 0, but on re-start it went to 3000 and stayed there. Where to begin, what am I looking at, new tach, is there a voltage regulator on the back of the cluster (like the 73) any and all info appreicated. Thanks!

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  • 1 year later...
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Dunno, but... My sons mark vii had a dead battery, we jumped it, the speedometer( odometer too!) was showing it was rolling along at 40 mph till the battery charged up...might check that your voltage is good. Marks are notorious for flaky grounds in the dash, probably a totally unrelated thing, but thought I'd mention it.

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