![]() |
|
|
|
Registered
|
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 |
||
![]() |
|
Registered
|
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. |
||
![]() |
|
Registered
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 |
||
![]() |
|
Registered
|
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 |
||
![]() |
|
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 |
||
![]() |
|
My other ride is a C-130J
|
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 |
||
![]() |
|
![]() |
Registered
|
Thank you!
__________________
1987 Porsche Carrera Coupe |
||
![]() |
|