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Alternator?? Or maybe bad ground? starting issues
I have a 2002 7.3L.
I have been having starting problems for the last few weeks. I blamed it on not plugging in the heater block with temps in the teens to 20's. Well after i jump it it seems to be fine. Then all of a sudden it wont start again, without a jump.
I tested the batteries and they test good. The alternator is 1 year old.
Last night the wife was driving it and the lights got dim and the ABS light came on. i was luckily following her in my truck. She wanted me to drive it home for her. So before we did this i hooked my truck up to hers to help give it enough charge to get it home. after 5 min. or so i decided to give it a go. All of a sudden the alternator starting charging again and the lights got bright. i got home and shut it off and tried to restart with NO problems.
This morning my wife is driving it and she said it does not seem to be stopping good, but the abs light is not on this time.
Does this sound like a ground issue, or possibly a alternator issue?
I am not 100% sure i know what im doing but i hooked up a multimeter to the batteries yesterday after i got it home and set it on DC V and while checking each battery got 17-18 volts and then 21 volts while the engine was running. i thought that was strange so i checked my 6.0L and got he exact same reading. I may not be using the meter right, hell i dont know.