Hey all! New here, and new to the 7.3 life. Bought an '02 f250 lariat recently. Pretty nice shape however the Battery light is on. I have read countless threads on this topic and still am searching for an answer. Both battery's are newer, from NAPA and give proper voltage. Alternator is brand new from NAPA as well. Also tried a second Alternator from rockauto for the heck of it too, still no dice. I only have a multimeter, no load tester at the moment. Truck seems to start and drive fine. Idle is slightly bouncy but doesnt seem to be losing power, lights not dimming as far as i can tell. I have been running through the steps on (I know its for a 6.0, but seemed to pretty relevant). I got the the part where he tests the alt pig tail and I am not getting any power to the Orange/Blue with the engine off. I tested by connecting my multimeter to the neg post on the passenger battery, then used the positive to contact the pig tail pin - read 0.00 no change at all. To eliminate the pigtail as the issue, i pulled back part of the orange/blue wire insulation and tested directly to the wire - still 0.00. Am I doing something wrong with my process or does this mean there is a larger wiring issue I need to hunt down? I also read it could be a bad gauge cluster - sound plausible? Any info/advice is much appreciated.

 

The other two wires have to have 12v on them. key off

 

Thanks for the reply. Sorry, but I am not sure which two you're referring to?

 

the regulator plug.. same plug the orange wire is.

 

 

The green wire reads 12v with key on, nothing on orange in either position.

 

 

So the guy says in the video that orange blue should be hot always. Mine is hot never it seems. Unless I'm testing it wrong, which I don't think I am. Green red is hot with key on however. Don't think it's the connector because I stripped some insulation off the orange blue and test straight to copper wire.

 

let me check a different drawing. I was just dealing with an 05.

 

Appreciate the help

 

oh yea just like mine. goes through 2 fuse able links. gray and blue on the 99.. one is probably bad. goes to the battery.

 

Any pictures or ideas of where I can located them. I have no idea what or where to look. Are they buried inside the wiring harness in the black plastic loom?

 

 

That guy right there next to the red battery cap says "fuselink" I'm guessing that's it? Can I buy a new one of those or what do I do now?

 

do you have a yellow and white tracer wire? and is there 12v on it Connector unplugged.