 Alternator/Voltage Regulator issue, Alternator light is on until rpm's increase |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
| PDXMike |
 Jul 26 2019, 09:41 AM
Post
#1
|
|
Slowly Learning  Group: Members Posts: 111 Joined: 20-December 10 From: Portland, OR Member No.: 12,501 Region Association: Pacific Northwest  |
My alternator light stays on after I start the car. It was dim, and it would go off (and stay off) as soon as I got the RPMs up over 1000 or so. I did eventually find a faulty connection between the battery and the Voltage Regulator, which I thought would solve my problem. Instead, I now have a similar condition except that the charge light is on full bright (not just dim, like before) until I blip the rev's up a bit. It will still go off and then stay off for the rest of the time the car is running.
With the car running at about 1000rpm I am getting 14V at the battery. Pulling the VR and shorting D+ to Df results in 16-17V at the battery, so I am assuming my alternator is good. I thought there was something going on with the VR not applying enough voltage to the field at start-up, so I ordered a replacement. They new Voltage Regulator is an AC/Delco part, not the OEM. I have exactly the same issue with the new Voltage Regulator. Any ideas? Thanks! Mike |
   |
 
|
  |
Replies
| SirAndy |
Jul 27 2019, 11:22 PM
Post
#2
|
|
Resident German Group: Admin Posts: 41,688 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
What engine? My /6 does the same thing and i have been told that it is normal ...
(IMG:style_emoticons/default/idea.gif) |
|
|
|
| porschetub |
Jul 30 2019, 08:48 PM
Post
#3
|
|
Advanced Member Group: Members Posts: 4,707 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
QUOTE(SirAndy @ Jul 28 2019, 05:22 PM)  What engine? My /6 does the same thing and i have been told that it is normal ... (IMG:style_emoticons/default/idea.gif) (IMG:style_emoticons/default/agree.gif) same with my rebuilt bosch 911 unit...good to hear. |
|
|
|
Posts in this topic
PDXMike Alternator/Voltage Regulator issue Jul 26 2019, 09:41 AM
914Sixer Do you have a spare relay board to swap out? This ... Jul 26 2019, 10:21 AM Spoke If the alternator works all the time when running ... Jul 26 2019, 10:34 AM 904svo Try cleaning fuse #9 connections, this fuse supply... Jul 26 2019, 11:39 AM Rand I haven't heard of bootstrapping a 914. It is ... Jul 26 2019, 02:50 PM
mikesmith
I haven't heard of bootstrapping a 914. It is... Jul 28 2019, 11:15 AM Chi-town Usually most alternators won't excite till 700... Jul 26 2019, 03:52 PM PDXMike I'll check and clean the number 9 fuse, the gr... Jul 27 2019, 04:53 PM PDXMike '75 with a 1.8.
What engine? My /6 does the ... Jul 28 2019, 10:34 AM Rand Yes I know where the term came from long ago. I le... Jul 29 2019, 05:04 PM Spoke
Yes I know where the term came from long ago. I l... Jul 29 2019, 08:33 PM |
3 User(s) are reading this topic (3 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 16th June 2024 - 07:54 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.