1976 maverick- new alternator but it will not charge the battery.

I just put on a brand new alternator but it willnot charge the battery what could be the reason for this if anyone knows it would be apperciated. Thanks

Jeremiah

 

Could be the voltage regulator.
Have both the new alternator and the voltage regulator tested at the auto parts store. I have seen parts that are bad right out of the box.

 

How do you know it is not charging? Are you using a voltmeter?

 

yes

yes i am using 1 and its not charging and yes i have had the alternator tested and its fine it wasnt charging with the last alternator either which turned out to be also working when i got it tested im thinking its the regulator which i am going to go get tested does that sound like something it could be. I know how to to alot with cars but im kinda stumped with this one. Thanks

 

Bad Battery?

 

Get your VR tested then get a new one.If it checks good then you need to check the wires from the VR to the alt.

 

bad regulator !!!! just wondering is the battery new or have a good charge if so then you have a bad regulator or wiring problem somewhere

 

Make sure the battery has a good charge(at least 12.8 volts)before you fire the car up with your new voltage regulator.The high demand amperage spike could cook the voltage reg if the battery is weak or dead.

 

Does anyone have or know where i can get a diagram ?

Does anyone know where i can get a diagram from or have 1 for a 1976 maverick. Ok i put on the new regulator car worked then went dead on me but then started back up had them check the alternator said the regulator or the wires are bad cant be the regulator cause this is the 2nd brand new i but on im thinking it wiring the store cant check the wires because they do have the type of plug in it needs to test it. so i need to make sure i got it wired right and make sure the wires arent bad.

 

The alternator and regulator have to match. Check the voltage at the alternator when it is running and then check the voltage at the battery. If the alternator voltage is more than 0.5V higher then you have a problem in the wires. Check the Alt+ to Battery+ wire - it has a fusable link in it. Put the positive probe of your volt meter at the alternator B+ terminal and the negative probe at the Solenoid B+ terminal. You should get 0.0V to 0.4V. If it is higher than that replace the wire with a 10ga. wire and a 60 amp fuse. Then check to see if your alternator is charging.

 

Go to Mark's site www.maverickcomet.com wiring diagrams are under Features / Wiring Diagrams

 

wiring harness to the clutcher?

ok changed out the wires the, the battery is good and the regulator is good and the alternator is good. they are saying it could be the wiring harness to the clutcher? anybody have any clue on the color codes for the wiring harness to the clutcher. im just lost now it runs but it want keep a charge and ive put alot of money in this car to stop for something this simple if u know anything please let me know.

 

spelled it wrong sorry its CUSTER

wiring harness to the custer?

 

Instrument"cluster"???

 

does any one know what wire does......

Does any one know what the wire to the cluster harness does and what colors go to what. the diagram that was previous sent to be doesnt show a diagram for the dask for some reason so i cant tell what goes where. any help would be appericated thanks.