Hey guy's sometimes my voltage guage reads 14 to 14.5 at night under normal load (stereo, air,lights etc) other times 13.8. Is 14.5 too high? It just started doing this.

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Sony MDX-C7900 running thru Bose system-CD changer in trunk-XM-Infinity tweeters. Autolite APP 605 plugs. New left lower control arm. New water pump, ICM, Crank sensor, MAP,TPS. Working on 2nd engine. Adding to car all the time.

14.5 is perfect voltage while running. I usually see 14.9 while driving.

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Andrew - owner/operator of Bonnevilles Unlimited

2004 Bonneville GXP | 60k | White Gold Tricoat | custom built supercharged 3800 hot rod | garage queen
1997 Corvette | 57k | Silver Metallic | Z06 wheels | Date-night Hauler/Parts runner
2014 Town & Country Limited | Cashmere Pearl | 115k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 280k | Official Bonneville Hauler

Cool, thanks for the reply.

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Sony MDX-C7900 running thru Bose system-CD changer in trunk-XM-Infinity tweeters. Autolite APP 605 plugs. New left lower control arm. New water pump, ICM, Crank sensor, MAP,TPS. Working on 2nd engine. Adding to car all the time.

Doesn't the higher voltage come from the alternator running? I believe there's a voltage regulator on it that controls that... Correct?

If you just put your car into ACC mode, does the voltage look closer to 12V? Again, mine runs around 14.x when it's on.

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-Joshua-

Yes, when the key is turned to the run position it will show the actual voltage of the battery. When the engine is running it is showing what the alt/volt reg output is.

Did you read that off the gauge or a multimeter?

If it was the gauge, you may want to check with a multimeter at the battery and at other places in the car. Typically 97's don't run 14.5, many 97 owners complain about lacking voltage.

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97 Ei
97 GS
98 GS

I have a 96 and it only reads 14 or so on the dash on cold mornings at start up or when the engine has a few rpms on it. at idle it dips a bit. For a more accurate reading, check it with a DMM at the battery.

Should be 12 with engine off. should go up one or two volts with the motor on but no loads on the system..then if you turn on the lights, blower motor, etc..it should dip a bit but should hold steady.

Off the cuff i would say that 14.5 doesnt sound odd to me..

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