volt meter and tach jumping
Thread Starter
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Elder User
Joined: May 2002
Posts: 627
Likes: 0
From: Claremore, Ok 74017
volt meter and tach jumping
For some reason my tach and volt meter have both been jumping when at idle. The volt jumps about a 1/8inch either way and the tach about 200rpm. Just wondering if anybody else has had this problem and what could be done.
Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
volt meter and tach jumping
Put a real (digital multimeter) voltmeter on the cigar lighter terminals to see if the dash voltmeter is accurate. A voltage spike could cause the tach to jump, but my tach did that just before it died.
