HELP!! Charging SYSTEM!!
#1
HELP!! Charging SYSTEM!!
Ok guys here is the deal i have a 97 expedition the other night me and my buddy were installing a head unit no big deal !! i have done it a thousand times !! well after we are done we decide we are going to take it for a test drive !! im on my way down the road and i notice all my lights are getting ver very dim i look at the battery gauge and it is on 8 so i panice take the truck back home and put it on the battery charger!! good i made it back home and the turck didnt die !! so i got out the next morning the truck fires right up no problem !! well i drive it to work only to notice that it is going dead on me again !! so now i decide im going to take it to an auto parts store and have the battery tested !! well it test to be a bad battery i put the new battery in and wallla the truck runs again !! yippie i thought !! boy was i wrong i was on my way home from work that night and then the damn lights start to dim again !! well i got it to the 24 hour autozone and pull the alternator off the truck they test it and the alternator is bad so i spend the 140 bucks for the new one put it on while autozone is charging the battery i start the turck up and everything seems fine so i continue on my merry way home !! i make it home without the lights dimming or anything and the battery gauge was not dropping like mad !! so im hpapy now i think all my problems are over !! my little brother borrowed the expy today and drove it to work !!! well i get a phone call only to be told that my truck is dead again !! i got to my brothers work and get the truck jumpstarted and then went to my friends house we did some testing and found that the alternator is not charging so i thak the alternator off and take it back to autozone in hopes that i got a bum alternator !! well i put the new one on only to find that it is not charging either !! well now im thinking man i have a dead wire somewhere !! i check the 12vconstant and there is juice there everything is good on that end !! so now i pull the connector off and i start checking the wires on it !! i have 3 wires on this cnnector an orange green and whit if i remember correctly !! i trace the wires and start checking them !! the one that has the small fuse in it checked out perfect i have juice on both sides of the fuse !! i follow the other wire and find that it goes to a connector and then into the main wiring harness for the truck(if i followed it properly !!) now the only wire that i have left is the white one and i was told that it ran the startor or its called a stotor wire !! i cant get at it well enough to test it !! but after all this teststing and veifying that everything is good i still cant get my alternator to charge my truck battery up !! PLEASE IF YOU KNOW ANYTHING THAT I AM OVERLOOKING LET ME KJNOW I AM GOING NUTZ I HAVENT OWNED THE VEHICLE FOR MORE THEN A MONTH AND I HAVE YET TO PUT A THOUSAND MILES ON IT !! i need help if anyone knows !!
THanks Inadvance !!
John H. FOrman
THanks Inadvance !!
John H. FOrman
#2
HELP!! Charging SYSTEM!!
Okay, first check the primary battery fuses. They are located in a black box, on the pass. side of the firewall. The cover just pops off, and there are 2 175 amp fuses inside. Unbolt the fuses, and check with a continuity tester. You must remove them for an accurate test. Good Luck, and let us know.....
#3
HELP!! Charging SYSTEM!!
I dont know if you checked it, but at the same location that Rtpjunior mentioned where the two 175Amp Mega fuses are mounted, there is also a 20 amp alternator field mini fuse at the base of the Mega Fuse block behind a little black cover. If its blown your alternator will not work.
#4
HELP!! Charging SYSTEM!!
Originally posted by Rtpjunior
Okay, first check the primary battery fuses. They are located in a black box, on the pass. side of the firewall. The cover just pops off, and there are 2 175 amp fuses inside. Unbolt the fuses, and check with a continuity tester. You must remove them for an accurate test. Good Luck, and let us know.....
Okay, first check the primary battery fuses. They are located in a black box, on the pass. side of the firewall. The cover just pops off, and there are 2 175 amp fuses inside. Unbolt the fuses, and check with a continuity tester. You must remove them for an accurate test. Good Luck, and let us know.....
Thanks,
John
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