Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > Porsche 911 Technical Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered
 
Join Date: Jan 2020
Location: Houston, Texas
Posts: 177
Garage
Does your battery indicator light come on when turning car off?

Just curious, if your battery light (in the same cluster as the oil temp/oil pressure) come on as the car is turning off.

i.e. once the ignition is switched off, as the engine is shutting down, does the light come on?

__________________
1987 Porsche Carrera Coupe
Old 04-01-2023, 08:38 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Registered
 
Join Date: Nov 2021
Location: The Far Side - Chicago
Posts: 1,206
Garage
Its the Alternator light.
I’d check the output condition of the battery, connections and it’s age. Might be that it’s time to replace it if over 4 yrs. old.
With engine running use a multimeter and reading should be better or close to 14v. With engine off anything less than 12.5 would indicate the battery is not able hold a charge.
Worse case is when engine is running, the alternator andd/ot regulator is failing or combo of all three, including the battery.
Old 04-01-2023, 11:10 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered
 
john walker's workshop's Avatar
 
Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,415
If the light stays on with the key off, the alt has a bad diode or 3.
__________________
https://www.instagram.com/johnwalker8704

8009 103rd pl ne Marysville Wa 98270
206 637 4071
Old 04-01-2023, 02:44 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Registered
 
Join Date: Jan 2020
Location: Houston, Texas
Posts: 177
Garage
Sorry..to clarify..
I was referring to the quick second where the light comes on as the car is turning off.

https://youtu.be/Tc53duOahtM
__________________
1987 Porsche Carrera Coupe
Old 04-02-2023, 08:41 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Registered
 
Join Date: Aug 2018
Location: Maryland
Posts: 2,264
Mine does this too, seems normal
__________________
83' Coupe - Ex-RaceCar
77' Targa Narrow Body - SC powered
Copper Brown Metallic
Old 04-02-2023, 01:51 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
My other ride is a C-130J
 
RNajarian's Avatar
 
Join Date: Jul 2004
Location: Southern California
Posts: 3,299
Garage
Mine also flashes on as I turn off the engine, maybe less than a second. Alternator is new so I assume it is normal.
__________________
1975 911 Targa S 3.0 2000 911 Carrera Cab 2005 Cayenne Titanium Metallic
2022 Mercedes-Benz E450 Coupé 2020 Mercedes-Benz E350 2006 ACG Hummer
Previously Owned Art from Stuttgart
2000 Boxster -1983 911 SC Cab -1984 944 N/A
Old 04-02-2023, 02:25 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)
 
Registered
 
Join Date: Jan 2020
Location: Houston, Texas
Posts: 177
Garage
Thank you!

__________________
1987 Porsche Carrera Coupe
Old 04-02-2023, 02:57 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #7 (permalink)
Reply


 


All times are GMT -8. The time now is 05:13 AM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.