 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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| dr914@autoatlanta.com |
Nov 15 2010, 03:32 PM
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914 Guru Group: Members Posts: 8,161 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None |
totally normal (as stated in the Tech Tips 700) they are on the same circuit so with the big power need for the brake bulbs it robs the power to the volt meter!!!
QUOTE(championgt1 @ Nov 15 2010, 01:43 PM)  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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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 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 jim_hoyland I went through the same thing. Finally wired the b... 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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