FICM or Battery?
#1
FICM or Battery?
Hello everyone. This morning I cranked up my 2004 to head to work and I switched the scangauge readout to look at FMP voltage. When I turned the key it was 47.5 and as soon as I cranked it over the voltage kept dropping until it reached 43 and then it climbed back up to 47.5-48. I was wondering where to begin. I do not know exactly how old my batteries are (been on there at least 2 years since I got the truck). Can anyone point me to the right direction? I was thinking replacing the batteries could help it. When I'm driving it's fine, this just happens during a cold crank.
#2
Find a parts store that does free battery testing, and have them check your batteries. If they are weak, I would definitely start there.
When I know I'm going out in the morning, I put a 1.5 Amp auto charger on my 6.0L service truck to keep the batteries topped up. Seems to start better when I do this.
When I know I'm going out in the morning, I put a 1.5 Amp auto charger on my 6.0L service truck to keep the batteries topped up. Seems to start better when I do this.
#3
Find a parts store that does free battery testing, and have them check your batteries. If they are weak, I would definitely start there.
When I know I'm going out in the morning, I put a 1.5 Amp auto charger on my 6.0L service truck to keep the batteries topped up. Seems to start better when I do this.
When I know I'm going out in the morning, I put a 1.5 Amp auto charger on my 6.0L service truck to keep the batteries topped up. Seems to start better when I do this.
#4
Cold definitely make a big difference. I had some AGM batteries in my '01 Dodge, when it was cold it wouldn't start worth a ****. Tested good every time when they were warm though.
Another thing is that your batteries were likely fully charged, plus a surface charge. If the tester doesn't know to remove the surface charge, they will look like amazing batteries.
You could try the trickle charger over night and see what happens. That would insure your batteries are fully topped up. Checking all connections for corrosion and removing any corrosion is a great idea as well.
Another thing is that your batteries were likely fully charged, plus a surface charge. If the tester doesn't know to remove the surface charge, they will look like amazing batteries.
You could try the trickle charger over night and see what happens. That would insure your batteries are fully topped up. Checking all connections for corrosion and removing any corrosion is a great idea as well.
#5
Cold definitely make a big difference. I had some AGM batteries in my '01 Dodge, when it was cold it wouldn't start worth a ****. Tested good every time when they were warm though.
Another thing is that your batteries were likely fully charged, plus a surface charge. If the tester doesn't know to remove the surface charge, they will look like amazing batteries.
You could try the trickle charger over night and see what happens. That would insure your batteries are fully topped up. Checking all connections for corrosion and removing any corrosion is a great idea as well.
Another thing is that your batteries were likely fully charged, plus a surface charge. If the tester doesn't know to remove the surface charge, they will look like amazing batteries.
You could try the trickle charger over night and see what happens. That would insure your batteries are fully topped up. Checking all connections for corrosion and removing any corrosion is a great idea as well.
#6
Cold definitely make a big difference. I had some AGM batteries in my '01 Dodge, when it was cold it wouldn't start worth a ****. Tested good every time when they were warm though.
Another thing is that your batteries were likely fully charged, plus a surface charge. If the tester doesn't know to remove the surface charge, they will look like amazing batteries.
You could try the trickle charger over night and see what happens. That would insure your batteries are fully topped up. Checking all connections for corrosion and removing any corrosion is a great idea as well.
Another thing is that your batteries were likely fully charged, plus a surface charge. If the tester doesn't know to remove the surface charge, they will look like amazing batteries.
You could try the trickle charger over night and see what happens. That would insure your batteries are fully topped up. Checking all connections for corrosion and removing any corrosion is a great idea as well.
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