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hello everyone I just joined and am very new to this I have a question hoping I can get an honste answer to my problem I'm getting burnt out with all the run around.
I just bought a used 2004 ford f150 about 3 months ago, its my first truck and i love it, but a month and a half in to having it the battery light came on then my truck completely died.
I got a brand new bosch alternator for it put it in everythings great the truck runs like a champion but after a month the battery light keeps coming on while I'm driving then turns back off then comes bavk on then off randomly, I cleaned the battery and terminals still lights coming on., everything test fine and passes, had it tested at 3 diffrent places. I have no idea what could be doing this but any help I would greatly appreciate it thanks.
Check all your main wires off the battery/alternator, one of those could be bad. But as Dano says, it might be your battery, it could have been fried by the bad alternator.
Sorry didn't see both responses getting burned by the bad alternator didn't think of that I'll just take both of your advise and change it out thank u both for shooting me ideas
Really quick if I take the battery into autozone or O'Reillys and have them do that hour long battery test do u think it would be accurate in its reading or should I just replace it altogether, Oh and fishb8 how do I check the wire s. I was also thinking it could be the connection between the 2 and if it is where can I buy a new set?
Basically a visual and hand check for corosion and weak points, should be able to get new wires from any auto supply store. Sometimes battery tests aren't 100% accurate, you might just have a bad cell. If you replace everything buy some battery anti corosion spray (red stuff) and give all connections a good shot. You could always just try cleaning the connections and see if that works.