The Mustang Source - Ford Mustang Forums

The Mustang Source - Ford Mustang Forums (https://themustangsource.com/forums/)
-   GT Performance Mods (https://themustangsource.com/forums/f669/)
-   -   12v Switched Source (https://themustangsource.com/forums/f669/12v-switched-source-460731/)

Sharky Nov 27, 2007 08:10 AM

12v Switched Source
 
Anyone have a sure fire location for an EASY to get to 12v switched power source. I am about to install a purge kit to my NOS system, it seems that everything in the fuse box is constant on. So is there a wire I can splice to or a fuse i can tap to get a 12v source that goes cold with the key?
Thanks

steph Nov 27, 2007 08:28 AM

try the stater solonoid.

mot250 Nov 27, 2007 11:14 AM

2 Attachment(s)
I can't remember what the number is off the top of my head but this one works for my electric water pump... the one diectly under the tap in the picture below...

Sharky Nov 27, 2007 11:39 AM


Originally Posted by mot250 (Post 1054761)
I can't remember what the number is off the top of my head but this one works for my electric water pump... the one diectly under the tap in the picture below...

Thanks!

mot250 Nov 27, 2007 06:01 PM


Originally Posted by Sharky (Post 1054773)
Thanks!

You're welcome!

Update, the one under the tap is # 42 that I used and is "live" when the key is "on".

Fuse # 40 on the other side of the center bolt of the fuse box (fuse with the red wire going over top of it) is "live" only when the engine is running.

Your choice...

VGMStudios Jul 18, 2025 07:12 PM


Originally Posted by mot250 (Post 5452818)
You're welcome!

Update, the one under the tap is # 42 that I used and is "live" when the key is "on".

Fuse # 40 on the other side of the center bolt of the fuse box (fuse with the red wire going over top of it) is "live" only when the engine is running.

Your choice...

I know this is an old thread but want to provide proper info cause this post confused me for a second. The fuse with the red wire going on top of it is fuse #43 Alternator.
Fuse #40 is right above fuse #42.


All times are GMT -6. The time now is 02:35 AM.


© 2026 MH Sub I, LLC dba Internet Brands