Voltmeter, Low when hot, high when cold
Thread Starter
Joined: Nov 2007
Posts: 845
Likes: 4
From: Salt Lake
Car: 1989 IROC & ROLL-Z
Engine: L98 Vortec FIRST TPI
Transmission: T56, Mech Speedo
Axle/Gears: G92 J65 3.27
Voltmeter, Low when hot, high when cold
Did a quick search for an obvious answer but came up empty. I assume this is either a grounding problem or a bad gauge.
Volt meter reads low (around 8?) when hot, (summer, after driving car for a minute) and extremely high (almost maxed) when its real cold out. I have verified the voltage and it never really changes from 13.4 to 13.1
Anyone have similar problems with a solution?
J
Volt meter reads low (around 8?) when hot, (summer, after driving car for a minute) and extremely high (almost maxed) when its real cold out. I have verified the voltage and it never really changes from 13.4 to 13.1
Anyone have similar problems with a solution?
J
Joined: Dec 2004
Posts: 16,744
Likes: 994
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Voltmeter, Low when hot, high when cold
Sounds like the gauge if you verified the actual charging system voltage. either a magnet or the winding is bad in the gauge.
Thread Starter
Joined: Nov 2007
Posts: 845
Likes: 4
From: Salt Lake
Car: 1989 IROC & ROLL-Z
Engine: L98 Vortec FIRST TPI
Transmission: T56, Mech Speedo
Axle/Gears: G92 J65 3.27
Re: Voltmeter, Low when hot, high when cold
I was leaning towards that, I shall order a replacement and see how that works.
Thanks!
Thanks!
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