Update on All My Electrical Issues

Lanse

Well-known Member
Hi guys!

So, lately I've made a few threads regarding a wiring short on a 1984 F700 Dump Truck and about a no-start on my 2004 F250 5.4 Work Truck.

First - the Dump truck! I bought an S&G Short Finder, and was completely mystified about its use when it showed up. I swore it was the oddest, most black magic pixie wranglin' thing I'd ever seen, but you know what? The thing ACTUALLY WORKED!

As some will recall - the circuit breaker in the truck was tripping and getting HOT, and this breaker covered the marker lights, and the horn's wiring. Well, I got to crawling around under the truck and removed about 20' worth of bundled up, cracked and broken wires from various lights which had been broken and replaced with new wiring. This didnt fix a thing - but then I worked my way to the front of the truck and discovered one wire in particular made the short finder act up - and I followed it to the defunct horn which NEVER WORKED, not once since I bought the truck. It went bazerk at the horn, which I then unplugged, and the short was gone! The breaker no longer heats up, and everything works. I'd installed an air horn some time ago, and so I capped off the wire which went to the trucks OEM horn, and figured there was a short inside the horn itself somehow. That was odd. But the good news is I only have to find and delete like 30 more bunches of wiring before the copper scrap money pays for the meter :)

Annnnnd then my 2004 F2fiddy wouldn't start, and I thought it was a bad battery. I tried to charge it, and it seemed to take, but it wouldnt spin the engine hardly at all! So, this morning I went to the local parts place, where they load tested it and said it was fine - and also commented about all the corrosion on its terminals, which I had previously considered to be a non issue. They sold me a handy brush for scrubbing these off, and I said "Thanks guys, see you later" to which the man at the counter replied "No you won't, because I bet that'll fix your problem"

Well, he was right! After 30 seconds of scrubbing, I hooked everything back up and the truck cranked faster than it ever had before, and started almost instantly!

I was pretty thrilled that I didn't have to buy another battery! On a side note, I'm really impressed with this NAPA Legend battery - it was made in 2013 and still works just fine, despite the fact that truck often sits for days/weeks in between uses.

Well anyway, I just wanted to thank you all for helping me resolve these things! Sometimes it is the little stuff that matters. Thanks again!
 
You should take those terminals off and grease them up with some anti-corrosive. They make special battery terminal sprays, but vaselene or white grease works well. Even gun grease will get you by. Cover terminals well.
 
Lance. you are maturing well. In the past you were young and many on here resented your input as they did on the welding forum. You have matured a lot, and have lots of fabricating skills and I hope you will continue to be a contributor here on your welding skills, and non welding problems that you have posted.
Loren
 
Never heard of a short finder before. Guess it's time I do a little research. Had a bare wire shorted to ground on our Apache sprayer and it took me forever to find it. That tool would of been handy save me alot of cussing! Glad you were able to get your truck working again.
 

If this has been mentioned, I apologize: Sometimes a battery cable can corrode and break inside the insulation. Everything looks fine, but has the symptoms you have described. Only cure is new cables.
Glad you are making progress.

KEH
 
The finder works by putting current into the wire by intermittently connecting the circuit to full voltage. (kindof like a self resetting circuit breaker or turn signal flasher. the current in the wire is sensed by a hand held meter (see the pic) and where the meter stops wiggling, in the harness you have found the short. I have used mine 10 times or so and it paid itself off quickly. I have found pinched wires between the trans and engine, screws through looms under floors, worn insulation at a sharp edge, and flaked off old rubber insulation. Jim
finder
 
Thanks for the kind words, guys! Loren, I think of you as an excellent fabricator, I've seen your work on here and really enjoy it.
 

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