 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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Don't embarrass me Filmore!  Group: Members Posts: 2,682 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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| r_towle |
Nov 15 2010, 02:46 PM
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Custom Member Group: Members Posts: 24,705 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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check with a digital volt meter at the battery.
See if your test readings match. If not, stop trusting the gauge. Considering you removed the old battery and re-installed a new one, I would suggest that you take a close look a the positive terminal and ensure that all the small wires (one is for the gauge) are VERY clean and the funky bolt it tight...and all the connectors are perfect. Rich |
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Posts in this topic
championgt1 Voltmeter gauge drops under 11 volts Nov 15 2010, 02:43 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 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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