Ok, i need major help. I have changed the alternator on my car 3 times and it does not charge the battery. Everytime i drive it and go past 4k rpms the battery light comes on. I have checked the fuse the controls the alternator and its fine. Has anyone had this problem before.

 

bump....someone help please.

 

did u put the ground cable on the altenator?

 

yeah i have the ground cable to the alternator. someone told me to check the belt tension, might that doit?

 

Clean every last connection that has to do with the charging system. 10 to 1 you didn't need to buy a new alternator in the first place.

 

i cleaned it out, and the alternator i had on there before was bad. but the thing that is trippy is the battery light turns on in the gauge cluster when i go over 4k rpms.

 

yup sounds like u got a loose belt. its probably moving too fast after 4 k that its not even grabbing the pulley

 

are you sure you didnt install a super dooper vtec light on your charge system light in your cluster?