 Voltmeter gauge drops under 11 volts, Readings decrease when loads are applied |
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| championgt1 |
 Nov 15 2010, 02:43 PM
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#1
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Don't embarrass me Filmore!  Group: Members Posts: 2,681 Joined: 3-January 07 From: Tacoma, Washington Member No.: 7,420 Region Association: Pacific Northwest  |
Installed a new battery and started the car. Voltmeter gauge reads around 13 volts. Cool. Turn the headlights on, gauge reads about 12. Cool. Hit the brake pedal gauge now drops below 11. Not cool.
The owners manual says the gauge should stay between 12 and 14 with loads applied. Mine is dropping below 11. Any ideas? Bad Ground? |
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| jim_hoyland |
Nov 15 2010, 09:10 PM
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Get that VIN ? Group: Members Posts: 9,696 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California 
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I went through the same thing. Finally wired the battery and volt meter to a relay and used a wire from the fuse panel to turn the relay on upon starting. Now I get a direct reading from the battery.
If the relay is mounted in the engine bay, the coil wire could be used to activate the relay. 30 = Battery in 87 = Wire to voltmeter 85 = Fuse panel hot, or coil hot 86 = Ground |
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Posts in this topic
championgt1 Voltmeter gauge drops under 11 volts Nov 15 2010, 02:43 PM
r_towle check with a digital volt meter at the battery.
Se... Nov 15 2010, 02:46 PM dr914@autoatlanta.com totally normal (as stated in the Tech Tips 700) th... Nov 15 2010, 03:32 PM championgt1 Checked voltage at the battery with a meter. Gauge... Nov 15 2010, 05:57 PM Spoke Ohms law says it all: V = I x R
With current (I) ... Nov 15 2010, 08:57 PM cary Mine does the same thing. I was thinking I needed ... Nov 15 2010, 09:10 PM
jk76.914
I went through the same thing. Finally wired the ... Nov 16 2010, 04:25 AM cary Finally got around rewiring the voltage gauge.
Rel... Sep 5 2012, 08:01 PM |
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