Hi All! Still trying to solve the battery dying issues on our 2001 F150 Super-crew. Doesn't appear to be a phantom or parasitic drain, so i am wondering if it is a corroded ground. My son came over and checked the ground located behind the front passenger kick panel - said it looked OK. My son said if I get the locations of all the locations of where the truck grounds are located (on my truck) he will check them all. I wanted to make a list for my son to check, but I can't see too good, on my old Haynes manual, where all the ground locations are on this truck so - I thought I would ask here. ** Also, If I just ran a new ground from the negative battery terminal to a good grounding spot, would that help? Or is that a wasted effort if there really is a corroded/loose ground somewhere on the truck because it would cancel out the new ground?

Thanks in advance for all the help!

 

Holy crap! They are all over the place.....

I know my driver's kick panel is all surface rusted

 

Yeah, that's what I figured. I am getting the feeling that just one really corroded ground could be causing all sorts of trouble. I am just wondering if I put a new ground in from the negative battery terminal directly, if that would overcome corroded/loose grounds located elsewhere??

 

A POOR ground will never discharge a battery.
IT'S an open circuit!.
There is no path if the circuit is open.
Ever see a bulb light on one wire or a switch in the OFF position?
Gotta do better than that in the thinking department.
.
I tried to help you before but someone is not willing to listen and do the testing.
Begin all over agin:
Has the battery been charged then load tested? It may have a bad cell. They are all in series. One Cell fails, the battery fails. If the battery is old or used, plate flacking to the bottom of the cell short circuits that cell. The plate material is LEAD!
If the cells are able to be filled with water, it's easy to test the cells one at a time with a voltmeter. Remove the caps, use meter test prods to just>> dip<< in the liquid without jamming the plates between each cell in succession. Each cell should measure about 2.1 volts. Any cell falling below 2 volts is a a failure. 2.1 volts times 6 cells = 12.6 volts.
Do not put water in then try the test. It will not work until the battery is charged and the fresh water mixes.
.
If no problem shows, there is a discharge path from Plus to Minus. That is the only way a battery will discharge and not through an open ground.
The discharge path can be through the Alternator Diodes, a faulty regulator on the Alternator or one of the truck's circuits is causing the drain.
There is no more to it than that..
There are ways to ID a faulty truck circuit through the fuse panels' holders.
You first have to find the major discharge path, then work finding the circuit causing the drain in that path.
If you don't think in a logical way, you will be a long time finding it.
We know you been chasing this quite a while and keep coming back for more help.
Time to begin listening and put the excuses to bed and be sure..
You may not like hearing where the Bear sh*ts in the Buckwheat but that's where your at.
Take the advice above and do it to conclusion.
Good luck.

 

Bluegrass is 100% right, a bad ground will not cause a discharged battery. Turn of EVERYTHING in the truck. Pull off either one of your battery leads and put an amp meter (NOT a volt meter!) in series with the terminal and the lead that you just removed and watch and see how much current is flowing. It should be a small fraction of an amp. If there's more than that then you have some shorted wires or something that's not turned off or possibly a bad diode in in the voltage regulator or in the alternator. If there's no drain and the battery still goes dead then you have a bad battery. That's the only possibilities. I've had a RUN of bad batteries over the last 12 years or so since Johnson Controls bought out most of the other US battery manufacturers. JC makes most of the batteries in the US today REGARDLESS OF THE BATTERY BRAND and as far as I'm concerned they're junk!

 

I have a drain from my CJB. The internal transistor that turns off the battery saver relay is stuck on. Relay never turns off.

I took my time to diagnose the issue. You need to take the time to diagnose your issue as well