Chrisallen22
Member
I have a 2003 ford expedition 5.4l it draining battery fully. What could be the causes of this. Has good battery and new alt. Looking for ideas to troubleshoot
Check charge system
- Thread starter Chrisallen22
- Start date
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Bedrck47
Full Access Members
Welcome to the forum
You need to do a patristic draw test
Check out the attached link
http://www.expeditionforum.com/threads/your-battery-keeps-going-dead-the-parasitic-draw-test.24600/
You need to do a patristic draw test
Check out the attached link
http://www.expeditionforum.com/threads/your-battery-keeps-going-dead-the-parasitic-draw-test.24600/
Bedrck47
Full Access Members
Take a volt meter and put it across the battery terminals and post the following voltages
Voltage with engine off and key out
Voltage at idle
Voltage with the engine running about 1200 to 1500 RPM's
Voltage with engine off and key out
Voltage at idle
Voltage with the engine running about 1200 to 1500 RPM's
Last edited:
NEW alternator doesn't guarantee GOOD alternator
I heard a whine coming from the engine compartment so I replaced the alternator. Turns out the whine was a serpentine belt pulley and the NEW alternator I put in was bad.
Just a guess on my part but if you say the battery is being drained FULLY ... it sounds like something is not turning off and draining battery. I had that happen one time when the rear window wiper got corroded and stuck. It would not return to the home position, but kept trying - draining the battery. Check that! That was on my 2003 XLT and it has happened a few times but I'm onto it now so "the jig is up".
Chrisallen22
Member
Battery drained over night was parked
Bingo! That is the typical thing with that rear wiper problem. Mine did it when I parked in a remote snowmobile lot and came back couple days later after overnights to a dead battery.
Chrisallen22
Member
Do u know the voltage to it
No I don't ... the problem I refer to is fixed (on my Expy) by taking apart the rear wiper & cleaning/lubricating it - where it goes through the glass. Not sure if that's your problem or not.
watch this video
Bedrck47
Full Access Members
Go back and read my post
Do a parasitic draw test to be certain. That way you will know for SURE rather at guessing
Although the problem may be the same Doesn't meant the cure is the same
TEST THE CIRCUIT
What happens if you take the time to check out something that someone says was their fix and then it doesn't solve your problem
Do a parasitic draw test to be certain. That way you will know for SURE rather at guessing
Although the problem may be the same Doesn't meant the cure is the same
TEST THE CIRCUIT
What happens if you take the time to check out something that someone says was their fix and then it doesn't solve your problem
Bedrck47
Full Access Members
That was the worst video I have ever seen
At no time does he show how to hook up the meter nor does he even turn the meter on Or show how to do a drain test.
Also on the second gen expys you can raise the lift gate window and turn the wiper by hand and it should move freely If it is stuck you will know right away.
He even waits until everything is apart befor he tries to turn the operator
And when he is finally done It was nice that he showed the wiper in operation.LOL
At no time does he show how to hook up the meter nor does he even turn the meter on Or show how to do a drain test.
Also on the second gen expys you can raise the lift gate window and turn the wiper by hand and it should move freely If it is stuck you will know right away.
He even waits until everything is apart befor he tries to turn the operator
And when he is finally done It was nice that he showed the wiper in operation.LOL
stamp11127
Full Access Members
It is a 12 volt system so I'll say 12 volts to the wiper....
Chrisallen22
Member
How many fuse boxes does a 2003 expo have. I'v only found 1 at the passenger side kick panel
Bedrck47
Full Access Members
Only one
Check your owners manual
If you don't have a manual you can download one at
owner.ford.com
Check your owners manual
If you don't have a manual you can download one at
owner.ford.com
Chrisallen22
Member
One at kicker panel even on a fully loaded
Bedrck47
Full Access Members
YES ONLY ONE FUSE PANEL IN YOUR 03 EXPY look in your owners manual
Chrisallen22
Member
I have checked everything out and still have the issue. When I turn key to a.c. all gauges read correct bit when I turn truck over gauges go put and battery gauge red lines. What' my next step
stamp11127
Full Access Members
You have been told to do the parasitic draw test. You can either follow along and diagnose it properly or toss parts at it. See the electrical section for a link to a good video by Eric the Car Guy on how the test is performed.
