 Voltage drop when I hit the brakes |
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| PinetreePorsche |
 Jan 10 2007, 08:03 AM
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#1
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Member  Group: Members Posts: 235 Joined: 14-November 05 From: Falls Church, VA Member No.: 5,124  |
What's wrong here? The voltage on my meter (stock- center console) falls from near 13 to 11-and-a-bit, daytime, and has a corresponding drop from a slightly lower starting (mid-12 area) with the lights on. Turning on the lights, without other loads, barely deflects the needle down, maybe .3 volts--that's for 2 fr. corner, two taillights and two markers. Why would the brake bulbs drain so much more? -is there a short somewhere--and no, I haven't been blowing any fuses. Just wondered--don't want to get stuck in an after-dark traffic jam, sit with the brakes on and drain the battery. -C
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| dr914@autoatlanta.com |
Jan 10 2007, 09:20 AM
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914 Guru Group: Members Posts: 8,154 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None |
No reason to check ANYTHING! This is typical for 914! The volt meter is wired in the same circuit as the brake light switch and we all know how much power two brake light bulbs take to operate! This is one of the tech tips in the Tech Tips 700!! Typical 914 (we love their little quirks!)
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| PinetreePorsche |
Jan 10 2007, 11:36 AM
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#3
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Member Group: Members Posts: 235 Joined: 14-November 05 From: Falls Church, VA Member No.: 5,124 |
QUOTE(dr914@autoatlanta.com @ Jan 10 2007, 07:20 AM)  No reason to check ANYTHING! This is typical for 914! The volt meter is wired in the same circuit as the brake light switch and we all know how much power two brake light bulbs take to operate! This is one of the tech tips in the Tech Tips 700!! Typical 914 (we love their little quirks!) Thanks, George. I read the book, cover to cover, in two straight stints while I was waiting to see if they would call me in as a substitute for jury duty (they never did). Guess I should go back and take another look at the ones I flagged or earmarked as important--I'd probably retain more w/a second reading. So, good doctor, is there any modification to the hook-up that would render the gauge more accurate/useful? |
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Posts in this topic
PinetreePorsche Voltage drop when I hit the brakes Jan 10 2007, 08:03 AM
Dr. Roger if all of your connectors are clean and wiring is ... Jan 10 2007, 08:10 AM PinetreePorsche I'll check the battery--but that doesn't a... Jan 10 2007, 08:24 AM Vacca Rabite Check your wiring first. Make sure that the conne... Jan 10 2007, 08:30 AM pfierb
What's wrong here? The voltage on my meter (... Jan 10 2007, 08:48 AM
robby750
No reason to check ANYTHING! This is typical... Jan 10 2007, 10:08 AM Dave_Darling As I always tell people, the voltmeter is there ... Jan 10 2007, 09:52 AM Brando Yeah... if it were run between the voltage regulat... Jan 10 2007, 11:52 AM
PinetreePorsche
Yeah... if it were run between the voltage regula... Jan 10 2007, 09:46 PM ClayPerrine I always looked at the voltmeter as a "mechan... Jan 10 2007, 09:51 PM davesprinkle Just for fun, I took my 914 voltmeter to work and ... Jul 10 2007, 12:49 AM Bartlett 914
Just for fun, I took my 914 voltmeter to work and... Jul 10 2007, 10:02 AM |
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