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> Now I’m overcharging, My car is murdering voltage regulators
VaccaRabite
post Sep 18 2018, 12:05 PM
Post #1


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I’ve been driving my car all over for the past week or so.
Last weekend I noted that it was hard to start, and it stalled while pulling away in 1st once. Weird. Didn’t worry about it and finished my drive.

Got home and I checked voltage at the battery and I was making 18 volts, my VR had seemed to fail and I was pushing max voltage at the battery. Geeze, no wonder the car was hard to start with the alternator at max effort.

So, I’ve done the ground thing and they are all clean and good. In my undercharging thread I ran a 10ga wire from the alternator case to the body ground point near the relay board in the engine bay.

I’ve also checked all my collection of voltage regulators and all 5 of them, be they mechanical or solid state are now allowing the alternator to go full bore all the time.

This is with both the brand new battery and the PC680 gell cell race battery.

What do I look for now? Could I have broken the VRs by pulling them off the running car while chasing issues with the alternator last time? Or is this a car thing and I need to fix something else.

The car is essentially acting like I have D+ and DF jumped with D- left empty.

Zach
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Posts in this topic
VaccaRabite   Now I’m overcharging   Sep 18 2018, 12:05 PM
Spoke   Did you find a 666 tattooed somewhere on your car?...   Sep 18 2018, 12:09 PM
VaccaRabite   Did you find a 666 tattooed somewhere on your car...   Sep 18 2018, 01:10 PM
worn   Did you find a 666 tattooed somewhere on your ca...   Sep 19 2018, 06:55 PM
Spoke   If I recall right, the alternator harness plug tha...   Sep 19 2018, 07:17 PM
Dr Evil   :stooges:   Sep 18 2018, 01:18 PM
porschetub   :beer3: :beer3: :beer3: I’ve been driving my...   Sep 18 2018, 03:57 PM
Spoke   If want me to test the VRs, I'll check them ou...   Sep 18 2018, 05:23 PM
VaccaRabite   @spoke Send me your address and I’ll send a VR...   Sep 18 2018, 05:32 PM
Spoke   [b]@[url=http://www.914world.com/bbs2/index.php?s...   Sep 18 2018, 06:53 PM
worn   [b]@[url=http://www.914world.com/bbs2/index.php?s...   Sep 19 2018, 06:43 PM
toolguy   [b]@[url=http://www.914world.com/bbs2/index.php?s...   Sep 18 2018, 05:45 PM
Spoke   [b]@[url=http://www.914world.com/bbs2/index.php?...   Sep 18 2018, 06:59 PM
IronHillRestorations   What about your alternator warning light? Sorry I...   Sep 18 2018, 06:57 PM
VaccaRabite   What about your alternator warning light? Sorry ...   Sep 18 2018, 07:16 PM
Spoke   What about your alternator warning light? Sorry...   Sep 18 2018, 08:11 PM
Peashooter   Take off your relay board and take a look at the b...   Sep 19 2018, 02:08 AM
VaccaRabite   Take off your relay board and take a look at the ...   Sep 19 2018, 06:20 AM
Spoke   Take off your relay board and take a look at the...   Sep 19 2018, 07:30 AM
dr914@autoatlanta.com   are the plug terminals from the alternator harness...   Sep 19 2018, 11:44 AM
rjames   are the plug terminals from the alternator harnes...   Sep 19 2018, 01:35 PM
VaccaRabite   I've been reading online that voltage regulato...   Sep 19 2018, 10:09 AM
Spoke   I've been reading online that voltage regulat...   Sep 19 2018, 07:15 PM
'73-914kid   What brand voltage regulators are you using? I had...   Sep 19 2018, 10:19 AM
VaccaRabite   What brand voltage regulators are you using? I ha...   Sep 19 2018, 10:46 AM
Spoke   ...I stopped at auto zone and they had a duralast...   Sep 19 2018, 06:37 PM
Dr Evil   Electrically, the only way this could happen is if...   Sep 19 2018, 11:27 AM
VaccaRabite   Electrically, the only way this could happen is i...   Sep 19 2018, 11:31 AM
VaccaRabite   I just ordered a new VR. Jerry, I never mailed the...   Sep 21 2018, 09:05 AM
Spoke   I just ordered a new VR. Jerry, I never mailed th...   Sep 22 2018, 07:33 PM
Jeff Hail   Alternator connections: D+, DF,D-, and B+. D- t...   Sep 23 2018, 04:34 PM
VaccaRabite   Thanks Jeff I’m going to need to read this a few...   Sep 23 2018, 08:53 PM
VaccaRabite   I installed the new VR today and it made no differ...   Sep 26 2018, 02:53 PM
crash914   got to be relay board or alternator..I might have ...   Sep 26 2018, 03:41 PM
dr914@autoatlanta.com   so you did verify the wiring sequence into the rel...   Sep 26 2018, 03:41 PM
Spoke   Zach, Measure the voltage at each of the VR termi...   Sep 26 2018, 05:28 PM
worn   Zach, Measure the voltage at each of the VR term...   Sep 27 2018, 01:34 AM
BillC   +1 on checking the relay board. Also, make sure t...   Sep 27 2018, 06:16 AM
VaccaRabite   Uggggggghhhhhh. :-( Mom was readmitted to the ho...   Sep 27 2018, 07:42 AM
76-914   I hope your Mom recovers quickly. I wonder if you...   Sep 27 2018, 08:55 AM
VaccaRabite   Holy crap I think I just found it!   Sep 28 2018, 09:39 AM
VaccaRabite   FOUND IT! The D- pin that the VR plugs into...   Sep 28 2018, 09:45 AM
Jeff Hail   FOUND IT! The D- pin that the VR plugs int...   Sep 28 2018, 09:48 AM
nditiz1   Nice! now you can make that show   Sep 28 2018, 09:58 AM
bbrock   And you didn't have to call in a priest! :...   Sep 28 2018, 10:19 AM
DRPHIL914   are the plug terminals from the alternator harnes...   Sep 28 2018, 11:30 AM
VaccaRabite   that's awesome!- I have been watching t...   Sep 28 2018, 11:44 AM
DRPHIL914   that's awesome!- I have been watching ...   Sep 28 2018, 11:55 AM
VaccaRabite   Mine will work fine for the rest of the fall. I h...   Sep 28 2018, 12:50 PM
Dave_Darling   Everybody has done stuff like that. If anyone has...   Sep 28 2018, 09:00 PM


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