Waving voltage meter and lights
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New User
Joined: Dec 2005
Posts: 12
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Waving voltage meter and lights
Hi everyone! I own a 1966 f-250, and have a common problem with old cars also. When I 1st start up the truck the volt meter sways fast back and forth, then when it warms up stays steady...but, as soon as I turn the lights on it returns to the swaying unless the engine is higher than 2000RPM, which gives a steady light and meter...Any Ideas? The voltage meter is new and the alternator seems fine and keeps everything in order and the battery charged. Help?
Elder User
Joined: Nov 2005
Posts: 998
Likes: 2
From: Benton, AR
I would suggest getting the alternator tested anyway since this is usualy free at your local parts store. Also the article whiter whites and britter brites was suggested on another post. I did it last weekend and it is an easy upgrade.
Posting Guru
Joined: Nov 2004
Posts: 1,111
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From: Turlock CA
The waving alt guage is usualy the voltage regulator. I changed over to an electronic voltage regulator and it works like a champ. I also installed relays with heavier wire to my H4 headlights and am very happy with the results.
jd
jd
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