HELP!!! No start issue.
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
The multimeter will only test for voltage. It won't LOAD test the battery. A battery can have (or show) sufficient voltage but when you apply a load, such as a starter motor, the battery will "fall flat on it's face". A parts store will load test the battery for free.
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Senior User
Joined: Sep 2005
Posts: 209
Likes: 0
From: Montague,ma.
The multimeter will only test for voltage. It won't LOAD test the battery. A battery can have (or show) sufficient voltage but when you apply a load, such as a starter motor, the battery will "fall flat on it's face". A parts store will load test the battery for free.
Disconnected them this morning and put'em on the charger just for S&G's. Gauge on the charger says 12.4 and won't budge from there.
Might take me a while to replace them. Kinda tapped out right at the moment. When I do get new ones, I'll post an update. Thanks everyone, for your help.
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Senior User
Joined: Sep 2005
Posts: 209
Likes: 0
From: Montague,ma.
Please explain. What happens if I don't replace the batts. right off?
Cargo Master
Joined: Jun 2007
Posts: 2,723
Likes: 5
From: Roseburg, OR
Low voltage = higher amperage to FICM. Higher amperage = heat on solder joints on electronic boards. Heat kills electronics and Solder joints.
A new FICM is around $1000 from Ford.
A rebuild is around $250 and up
A bad FICM can take out injectors at $2000 a set.
So putting off batteries is not recommended.
A new FICM is around $1000 from Ford.
A rebuild is around $250 and up
A bad FICM can take out injectors at $2000 a set.
So putting off batteries is not recommended.
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Senior User
Joined: Sep 2005
Posts: 209
Likes: 0
From: Montague,ma.
Low voltage = higher amperage to FICM. Higher amperage = heat on solder joints on electronic boards. Heat kills electronics and Solder joints.
A new FICM is around $1000 from Ford.
A rebuild is around $250 and up
A bad FICM can take out injectors at $2000 a set.
So putting off batteries is not recommended.
A new FICM is around $1000 from Ford.
A rebuild is around $250 and up
A bad FICM can take out injectors at $2000 a set.
So putting off batteries is not recommended.
Cargo Master
Joined: Jun 2007
Posts: 2,723
Likes: 5
From: Roseburg, OR
You could leave them in but just don't start it. The ignition pulls in the FICM relay which sends voltage to the FICM.
So if you don't start it or try to start it then FICM will be fine.
Pulling the batteries is fine too.
So if you don't start it or try to start it then FICM will be fine.
Pulling the batteries is fine too.
Hotshot
Joined: Apr 2010
Posts: 19,055
Likes: 235
From: Saratoga Springs,UT
If you have Regular Batterys and NOT GEL STYLE BATTERYS you can Hydro test them
The Battery Hydrometer is like $5-$8 Bucks at any auto parts store
Its VERY VERY Accurite of a Test since you test each cell WHILE IN the Truck But Cables Disconnected
IMO Its every bit as Good as a Bench test at the store where The "Windsheild Wiper BOYS" hook it up to Test
Sorrey Bill that Probably Stuck with me I LIKE IT LOL
Hotshot
Joined: Apr 2010
Posts: 19,055
Likes: 235
From: Saratoga Springs,UT
You likely Burned something Up
Going to need to Trace the Circuits you hooked up
Your Batterys might be Bad IDK Theres Other Damage!!beside batterys IMO
You need a Working DVM!!
Truck still nostart
Going to need to Trace the Circuits you hooked up
Your Batterys might be Bad IDK Theres Other Damage!!beside batterys IMO
You need a Working DVM!!
Truck still nostart
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Senior User
Joined: Sep 2005
Posts: 209
Likes: 0
From: Montague,ma.
Ok, thanks. That's a load off my mind.
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Senior User
Joined: Sep 2005
Posts: 209
Likes: 0
From: Montague,ma.
If I "burned something up" it goes to a mechanic. I ain't crawling around under a dashboard trying to trace wires.