 another stupid electrical question, what is right/normal/bad |
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| timofly |
 Nov 24 2011, 11:11 AM
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#1
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Member  Group: Members Posts: 169 Joined: 21-February 09 From: VA Member No.: 10,082 Region Association: MidAtlantic Region  |
74 2.0 FI with console voltage gauge, shows 13+ volts running with no lights on. Turning on parking lights or stepping on the brake drops it to about 12.2. Turning on headlights drops it further to just below 12. Fog lights have no effect (they are working) but turn signals will drop it to 11 with headlights on. Brakes with headlights on also drops it to 11 volts. Battery (Red Top) shows 12.5 volts with engine off after a good run.
Before someone says: "Did you read the threads here on this?" Yes, I have, and the same conditions draw responses ranging from "that's normal" to "your regulator/aternator/phisoginator is about to fail", so they leave me right where I started. I have cleaned the grounds in the front fenders right by the headlight motors, with no effect. So, three dumb questions: 1. what's the best way to check the voltage being sent to the battery 2. where is the ground connection to the body for the tailights, 3. am I worrying about nothing? Happy Thanksgiving to all and thanks for any advice. |
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| Mike Bellis |
Nov 24 2011, 11:21 AM
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#2
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Resident Electrician Group: Members Posts: 8,347 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None 
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Check the actuall battery voltage at the battery.
The tail light ground is on the side wall below the relay board. The stock voltage gauge is almost useless. |
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| timofly |
Nov 24 2011, 11:26 AM
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#3
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Member Group: Members Posts: 169 Joined: 21-February 09 From: VA Member No.: 10,082 Region Association: MidAtlantic Region |
QUOTE(kg6dxn @ Nov 24 2011, 12:21 PM)  Check the actuall battery voltage at the battery. The tail light ground is on the side wall below the relay board. The stock voltage gauge is almost useless. I should have clarified that the battery voltage of 12.5 was measured at the battery, not taken from the gauge. |
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Posts in this topic
timofly another stupid electrical question Nov 24 2011, 11:11 AM
kg6dxn
Check the actuall battery voltage at the battery... Nov 24 2011, 11:38 AM
ArtechnikA
74 2.0 FI with console voltage gauge, ...
The co... Nov 24 2011, 11:26 AM Tom This is caused by where the voltage reading is bei... Nov 24 2011, 11:32 AM underthetire At 12.5 volts at idle with everything on, yer fine... Nov 24 2011, 11:51 AM 76-914 I use mine to remind me that I've left the tur... Nov 25 2011, 12:04 PM windforfun Don't let your old voltage regulator fail ... Nov 25 2011, 06:05 PM |
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