Fix your battery cables!!
The problem: The gap is closed, but it’s not tight on the battery post.
The fast way is to use a cutoff wheel to open up the inside of the clamp. You can do this with a narrow file or even a razor blade/utility knife.
Now it will tighten up on the battery post!! Easy fix.

The fast way is to use a cutoff wheel to open up the inside of the clamp. You can do this with a narrow file or even a razor blade/utility knife.
Now it will tighten up on the battery post!! Easy fix.

(For model years up to 2001, before Ford changed to lead free battery clamps in model year 2002).
Probably the quickest and easiest way to absorb lead into the body's bloodstream... from friction heated fumes and lead dust.
Might be even faster than a speeding bullet, as it might take more time for the body to break down and absorb the lead slug of a bullet.
Whenever using a cut off wheel on a grinder, personal protection goes without saying... but whenever using it on lead... a word of additional caution is warranted.
(For model years up to 2001, before Ford changed to lead free battery clamps in model year 2002).
Probably the quickest and easiest way to absorb lead into the body's bloodstream... from friction heated fumes and lead dust.
Might be even faster than a speeding bullet, as it might take more time for the body to break down and absorb the lead slug of a bullet.
Whenever using a cut off wheel on a grinder, personal protection goes without saying... but whenever using it on lead... a word of additional caution is warranted.
Grinder + lead = OH NO!
Go to plan B on this mod.
You can acheive the same results here with a utility knife with less exposure.
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Set your voltmeter to the lowest scale (2 volts) place one probe right directly on the NEG battery post, the other probe on a clean, unpainted part of the engine starter case housing. Crank the engine over for a few seconds. Note that the voltage drop will actually be displayed as a positive number.
The voltage drop limit for ground circuits is 0.2 volts. Ohms resistance tests are not practical in a high current, low voltage electrical circuit. So a voltage drop testing is done to infer excessive resistance.
It isn't just the starter that is affected by voltage drop. Charging, headlights, accessories and ignition output are all horked by grubby connections and old cables. There's no way to visually determine this, because the corrosion is inside the crimp, or under the insulation. Even a paper thin, invisible layer between electrical connections is enough to cause problems.
Voltage Drop Testing
It doesn't take much of an increase in resistance to cause trouble. Let's say a 120 amp alternator operates in a circuit that has a normal resistance of 0.11 ohms. If that resistance were increased to 0.17 ohms because of a bad wiring connection, the alternator's maximum output would be limited to 80 amps. In other words, an increase of only 0.06 ohms (almost nothing!) would reduce the alternator's maximum output by almost a third! Under light load, the drop in charging output might not even be noticeable. But in a high load situation, the alternator wouldn't be able to keep up.
Ford Trucks for Ford Truck Enthusiasts
Whole thing
lead terminal
terminal fine but can see the corrosion that has snuck in under the cable jacket
Not much to say here. starter-relay cable was loose and actually caused a no-crank a couple times until it was jiggled back into position.
The gradually applied pressure of a hydraulic press allows the individual wire strands to wiggle into their most space efficient nestled position, reorganizing themselves following the path of least resistance in the displacement of any air spaces. prior to permanent deformation into the compressed lug.
A hammer hit may deform the strands immediately, prior to them having a chance to arrange themselves more compactly. Enough hammer hits will render any self rearrangement moot, but the tell tale signs of how well a multi strand cable has been compressed are only available to see with destructive testing, where a cut away crosssection is examined to see if the strands have melded as one, or if there are tiny dark spots (voids).
The best affordable tool is probably this one...a $150 Chinese knock-off version of a $1500 USA made professional quality one, but a pretty good one.
(Not endorsing Amazon by any means but that is a topic for another time)
Real one:
Pirate4x4 Camo posted a link about a month ago to this one page where I picked all this up, so original credit to him for finding that one:
https://marinehowto.com/making-your-own-battery-cables/
I was considering buying an FTZ 94284 and needed parts to fix my existing one, but after cross shopping a whole new one from Ford I got lazy and took the practical way out. A fine solution since I don't have any extra toys hooked to the batteries. (otherwise the military style terminals are better). Other people might also decide buying them pre-made from the Custombatterycables.com guy is a more practical solution also.
The gradually applied pressure of a hydraulic press allows the individual wire strands to wiggle into their most space efficient nestled position, reorganizing themselves following the path of least resistance in the displacement of any air spaces. prior to permanent deformation into the compressed lug.
A hammer hit may deform the strands immediately, prior to them having a chance to arrange themselves more compactly. Enough hammer hits will render any self rearrangement moot, but the tell tale signs of how well a multi strand cable has been compressed are only available to see with destructive testing, where a cut away crosssection is examined to see if the strands have melded as one, or if there are tiny dark spots (voids).
















