Re: [FWDLK] WHAT CAUSE GAUGE NEEDLES TO GO UP AND DOWN

Ron,

I had a 64 Dodge Coronet with a similar problem, many years ago. All the voltage dependant gages (fuel, temp, oil) would be normal, and then for just a second or 2 would shoot upscale and then return to normal again. The amp gage was unaffected. It happened every few days. That was caused by a “voltage limiter” device somewhere in the dash. It limits the voltage to the gages. When all the gages move together, it is a sign of a voltage problem. The cause may be the voltage limiter, the voltage regulator, or a bad connection (battery terminals?) that varies in resistance. Try driving with a voltmeter on the battery and see if the system voltage varies.

Dave Homstad

56 Dodge D500

-----Original Message-----
From: Forward Look Mopar Discussion List [mailto:L-FORWARDLOOK@xxxxxxxxxxxxx]On Behalf Of Ron Allyn Swartley
Sent: Monday, October 01, 2007 11:40 PM
To: L-FORWARDLOOK@xxxxxxxxxxxxx
Subject: [FWDLK] WHAT CAUSE GAUGE NEEDLES TO GO UP AND DOWN

I got our little 1965 Dodge Dart GT out of storage at the garage and took it for a Sunday cruise. The battery was a little low but it started up ok. As I drove I noticed that the fuel gauge and the temperature gauge keep slowly climbing to the right and then after a few seconds they would slowly drop back down only to repeat the climb and drop over and over again. The amp gauges keep charging even though I think the battery was charged up? Do any of you fellow Mopar guys know what would cause this? I had the same problem with another car of mine about 20 years ago but I cannot remember what had caused it? ( I think it was a bad voltage regulator??? )

Ron

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