Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
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.
 

Welcome Guest ( Log In | Register )

2 Pages V  1 2 >  
Reply to this topicStart new topic
> red alternator light, just came on while driving
GreatPumpkin
post Aug 26 2011, 10:26 PM
Post #1


Member
**

Group: Members
Posts: 122
Joined: 28-October 07
From: Centerville OHIO
Member No.: 8,272
Region Association: None



while driving all of a sudden the red alternator light came on and stayed on until i got to my destination. i let the car sit for a few minutes, then i turned it back on an the alternator light was still on. in the operating manual it says something about a "loose or broken v-belt". or it could be a defective alternator. ive never had any problems with this until now and im a little nervous to keep driving it with the light on. does anyone know where is the "v-belt" located and how do i check to see if it is loose or broken? could it just be that the alternator has gone bad? could it be anything else causing the light to be on? Again i was driving the car with the light on butonly for a short distance, and it seemed to be running fine, the only problem was the light was on. (IMG:style_emoticons/default/WTF.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
rnellums
post Aug 26 2011, 10:28 PM
Post #2


Professional Enthusiast
***

Group: Members
Posts: 1,673
Joined: 26-November 09
From: Littleton, CO
Member No.: 11,072
Region Association: Rocky Mountains



pop the engine lid and feel down near the intake impeller at the front of the engine, there should be a belt running from the impeller to the generator there.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
rnellums
post Aug 26 2011, 10:29 PM
Post #3


Professional Enthusiast
***

Group: Members
Posts: 1,673
Joined: 26-November 09
From: Littleton, CO
Member No.: 11,072
Region Association: Rocky Mountains



BTW, I drove my 914 for 600 miles without the generator by carrying a backup battery, only driving during daylight and charging batteries at night.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Kirmizi
post Aug 26 2011, 10:38 PM
Post #4


Senior Member
***

Group: Members
Posts: 836
Joined: 12-February 06
From: Wyoming, US
Member No.: 5,568
Region Association: None



Also check to make sure none of your fuses have come loose.
Mike
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
GreatPumpkin
post Aug 26 2011, 10:39 PM
Post #5


Member
**

Group: Members
Posts: 122
Joined: 28-October 07
From: Centerville OHIO
Member No.: 8,272
Region Association: None



ok so i checked the belt and it has lots of tension and seems to be running on the track it is supposed to be on . is it common for these belts to come loose?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
yeahmag
post Aug 26 2011, 10:41 PM
Post #6


Advanced Member
****

Group: Members
Posts: 2,479
Joined: 18-April 05
From: Pasadena, CA
Member No.: 3,946
Region Association: Southern California



http://www.914world.com/bbs2/index.php?sho...lternator++test
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
GreatPumpkin
post Aug 26 2011, 11:02 PM
Post #7


Member
**

Group: Members
Posts: 122
Joined: 28-October 07
From: Centerville OHIO
Member No.: 8,272
Region Association: None



i checked all of the fuses under the steering wheel and the two inside the engine compartment and they are all good. i also checked the v - belt with a hand mirror to make sure it is running properly which it is. i dont know why the light is on. when i turn the key to the on position without starting the car all of the warning lights come on like normal i just dont understand why the light is on. i turned the car on and it started right up but the light is still on. does this mean the car is running off the battery? if it is will the car just die driving on my way to work tomorrow?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SirAndy
post Aug 26 2011, 11:08 PM
Post #8


Resident German
*************************

Group: Admin
Posts: 42,469
Joined: 21-January 03
From: Oakland, Kalifornia
Member No.: 179
Region Association: Northern California



QUOTE(GreatPumpkin @ Aug 26 2011, 10:02 PM) *
does this mean the car is running off the battery?

Yes. You really shouldn't be driving the car until this is fixed. Alternators do go bad.

Check the wires and plugs on your relay board and make sure nothing came lose. There's a 3-prong plug that goes from the relay board to the alternator.

(IMG:style_emoticons/default/idea.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Porscheman912
post Aug 27 2011, 12:03 AM
Post #9


Newbie
*

Group: Members
Posts: 20
Joined: 21-June 09
From: Washington
Member No.: 10,492
Region Association: None



The big thing, is to start the car, and check the battery with a volt meter. See if it is putting out just over 14 volts. If it does not at idle, rev it up a little, to see if it is charging. The other thing, is to look by the Alt to see if any of the wires have rubbed through something.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
76-914
post Aug 27 2011, 02:13 AM
Post #10


Repeat Offender & Resident Subaru Antagonist
**********

Group: Members
Posts: 13,876
Joined: 23-January 09
From: Temecula, CA
Member No.: 9,964
Region Association: Southern California



You never had a problem with it before? How long have you owned it? (IMG:style_emoticons/default/agree.gif) Check volt at bat when running then read this............
http://www.914world.com/bbs2/index.php?showtopic=117551
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
edwin
post Aug 27 2011, 06:03 AM
Post #11


Member
**

Group: Members
Posts: 321
Joined: 20-May 09
From: Australia
Member No.: 10,384
Region Association: Australia and New Zealand



Might be worth checking the regulator. I had to replace mine on Tuesday for a similar reason. I just used a universal Bosch re55. All good now
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
rnellums
post Aug 27 2011, 06:46 AM
Post #12


Professional Enthusiast
***

Group: Members
Posts: 1,673
Joined: 26-November 09
From: Littleton, CO
Member No.: 11,072
Region Association: Rocky Mountains



Once you figure it out I have a regulator I don't need anymore that I'll give you for cheap. I also have an old alternator.

-Ross
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
rnellums
post Aug 27 2011, 06:46 AM
Post #13


Professional Enthusiast
***

Group: Members
Posts: 1,673
Joined: 26-November 09
From: Littleton, CO
Member No.: 11,072
Region Association: Rocky Mountains



Once you figure it out I have a regulator I don't need anymore that I'll give you for cheap. I also have an old alternator.

-Ross
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Drums66
post Aug 27 2011, 11:36 AM
Post #14


914 Rudiments
*****

Group: Members
Posts: 5,321
Joined: 15-January 03
From: Coronado,Cali
Member No.: 151
Region Association: Southwest Region



.....Give a good visual inspection !st (IMG:style_emoticons/default/idea.gif)
(IMG:style_emoticons/default/bye1.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
underthetire
post Aug 27 2011, 11:43 AM
Post #15


914 Guru
*****

Group: Members
Posts: 5,062
Joined: 7-October 08
From: Brentwood
Member No.: 9,623
Region Association: Northern California



See if you can borrow a regulator to try. Takes 5 minutes to swap them. I bought a cheap at autozone for less than 30 bucks when mine failed on a nice weekend. Was a temporary replacement a year ago, and it's still working.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
John
post Aug 27 2011, 04:43 PM
Post #16


member? what's a member?
****

Group: Members
Posts: 3,393
Joined: 30-January 04
From: Evansville, IN (SIRPCA)
Member No.: 1,615
Region Association: None



Have you been able to try a different voltage regulator?

User is offlineProfile CardPM
Go to the top of the page
+Quote Post
70 914
post Aug 28 2011, 11:23 PM
Post #17


Member
**

Group: Members
Posts: 54
Joined: 14-January 11
From: everett wa
Member No.: 12,590
Region Association: None



the red lite in my 914 is the OIL lite !
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
VaccaRabite
post Aug 29 2011, 07:09 AM
Post #18


En Garde!
**********

Group: Admin
Posts: 13,845
Joined: 15-December 03
From: Dallastown, PA
Member No.: 1,435
Region Association: MidAtlantic Region



QUOTE(70 914 @ Aug 29 2011, 12:23 AM) *

the red lite in my 914 is the OIL lite !

Your oil light should be green, on the right hand side of the gauge. Alternator light is red, on the left hand side.

Unless someone changed the lenses.

Zach
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
mburkhart
post Aug 29 2011, 12:35 PM
Post #19


Member
**

Group: Members
Posts: 113
Joined: 3-July 05
From: Chester, MD
Member No.: 4,364
Region Association: MidAtlantic Region



QUOTE(Vacca Rabite @ Aug 29 2011, 05:09 AM) *

Your oil light should be green, on the right hand side of the gauge. Alternator light is red, on the left hand side.


Actually, the oil light can be on the left or right side on pre-73 gauges. The alternator light is always red and the oil light is green.

http://www.p914.com/p914_gauges_fuel-comp_early.htm
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Ductech
post Aug 31 2011, 01:00 PM
Post #20


Member
**

Group: Members
Posts: 356
Joined: 16-July 10
From: AridZona
Member No.: 11,949
Region Association: Southwest Region



I always thought it was kinda funny that the oil pressure light is green. Whats "green is go" about losing oil pressure. whereas your not gonna crap your metaphorical pants if your alternator quits charging
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

2 Pages V  1 2 >
Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 2nd April 2026 - 06:46 AM
...