you could solder the fuse in the line and it would burn aqain.
until the continuity is equel thru out the circuit.
no math just experience

 

No, it wouldn't burn at the solder joint - unless it was a poor joint... Again, the heat is generated due to high resistance. If the junction is soldered properly, it will not have high resistance.

Your "experience" I don't doubt - your ability to accurately diagnose what the real cause of the issue is what I question.

What does "the continuity is equal throughout the circuit" mean ?

Take a course in basic electricity and you will see what I mean about the resistance. No flame intended, just a suggestion...

 

excuse me i was a little hasty, it was early when i read that.

what i mean is by equal continuity is the end of the ground wire is not the only conection to check.
i don't know why it burns on the positve side but a bad ground on d/c circuits always seems to burn on the waekest place on the hot side.

i have no qualifications to make that statment other than experiance

 

Now that I can agree with - every connection is important, not just the ground.

The weakest spot is exactly what will fail - that is the spot with the poorest connection...

The reason the "ground" side doesn't fail is that if the ground is poor, current flow is reduced or stopped. Look at what happens when a battery post has corrosion - the flow is reduced enough that nothing works. Same concept.

What we are seeing with fuse meltdowns is the exact opposite - current flow is high, through a higher resistance connection. That equals heat.

I guess we were both saying the same thing, in different vernacular...

 

i had a problem similar one time and an old farmer helped me fix it.

he also told me john deere was right useing the ground for the starter.

i just had to add his wise words.

 

I'd like to add e-fans. If the cost isn't too high. If the kit doesn't make me put anything through the radiator fins. If the wiring is right. Of course we don't get posts about how great some mod. is after three years or whatever, but we do get tons of posts about the problems. ( same as any other mod, far as I can tell) I haven't seen a perfect kit yet. I travel and tow long distances across the desert and into the mountains. I can't tolerate a failure of the cooling system. That being said, my wife's Benz has an efan and it works flawlessly, no hassles, no lights to say the fan is on, nothing stuck through the radiator to eventually leak, etc. Her little V6 jumps at the throttle. So maybe there is something to be said about a ground up design and all the testing that goes into it. I don't doubt they improve mileage and performance, so I wonder why Ford isn't using them, other than the usual cost savings excuse. I'm sure they'd like to claim better mileage on our heavy-a@@ trucks. I like 'em in concept, but I'd always be wondering when I'm gonna be stuck 5 hours from anywhere......

In my experience working on semiconductor equipment for years, we would never solder a fuse anywhere. Like has already been said, there's something else wrong if the holder is heating up to that extent. Like high resistance. If you can have a huge fuse on an AC unit at home that's not soldered ( or in my case at work, 480V 3ph. inputs), there's no reason to solder this one. Almost certainly won't fix it long term anyway. And, if that fuse blows on the road, what do you do? Unsolder it? Try a different holder design and get out the meter to verify prior to install.

 

Well... it's not like I mean it...

But I'd hate to say it... even if it was fused, it can still light a truck up on fire. Rare, I know... but it happened this past year with my neighbor across the street from me. Their daughter's Gran Prix had a subwoofer system setup from Circuit City, and it was indeed properly fused, but it still managed to catch on fire while it was sitting in a parking lot. According to officials, it was electrical with the subwoofer setup.

So if you think fuses are going to save wires and a truck, think again.

Then again, the only thing that I could imagine that went wrong was that they put in too big of a fuse or something... but with ANY fuse, it shouldn't have done that with a short.

 

There are at least twice as many connections in the hot side. Therefore there is at least twice the chance for failure there.
Ohms law is key here. The wiring and all connections must be designed to withstand the highest current in the circuit. If not, heat is the result.

 

trucks are a hobby to me.
i made my own efan setup during a truck rebuild.
not road tested yet other than the drive to the body shop
dude there fixed a mistake i made with a resister.
it's due to come out of the paint shop today.
if i have problems with them i'll start a thread maybe:o

 

Flex-a-lite - Monster Fan 270 installed 10-27 -2005 no problems I did run a Ground wire to the battery and did not use the poor steal ground of the body of the truck I still love The Efans and would fix any problems that should arise

 

Galaxy
hows this working out?

 

Well, I spliced in a new fuse holder like before, and like before...so far so good. This one does have 10ga wire and I crimped the fuse holder thingies down pretty good. I plan on re-doing all the ground wires this weekend maybe.

 

keep me posted because the one i put the fans in is due to go off to college soon.
i think i may put oem fan back and try this efan setup on something a little closer to home
thanks for your help in this decision

 

Good luck with that decision...Don't remember if I said or not but my whole problem with all this, and my reason (regret) for starting this thread is I do doubt my work/mechanical ability/installation for one second. That only leaves the components/wiring/design as the culprit to my problems.

AND to boot, I could get past all this if it was a repeatable, traceable problem. I only replaced the fuse holder last time this happened and here we are again. I am completely unable to pin down the conditions or actual time of mishap with this stupid thing.

 

I was contemplating doing this mod but I think Ill leave that giant propeller on the drive belt instead. I can do work ont the truck but I'm no electrician and I'd hate to have these problems.

I would fight someone if I did.