the alternator was tested came back good, all wires are good and tight. could it be the computer? it is a 1990 dodge ram charger. the connections on the battery are clean. your help needed.
2007-08-21 09:47:30 · 5 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
Spend $15 on a voltmeter and check the battery voltage while the car is running. If it's 12 volts, the alternator isn't going. If it's 14, the alternator is OK.
It's not the computer. There's a small wire to the alternator that needs to have 12 volts on it for the alternator to work. If that's bad or not connected, there's your problem.
2007-08-21 11:01:22 · answer #1 · answered by Nomadd 7 · 0⤊ 0⤋
Start the car, remove the postive terminal from the battery, if the car stays running, the alternator and or wiring is good. If the car dies then the alternator is bad. Some elecrtrical parts will have a false positive meaning they show good when they are bad. The only way to know for sure is by putting the device under a load. When putting a coil, starter, or an alternator under a load, the windings expand causing the miniature crack in the wiring to actually open up and cause the fault.
2007-08-21 17:50:21 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Check the wiring to the regulator, to the battery,to the alternator,to the ground.
If all else fails take it to the dodge dealership and have the work on it
2007-08-21 17:26:52 · answer #3 · answered by bahs313 2 · 0⤊ 0⤋
go to the dodge dealership so they can do a diagonistic on the truck. They can tell you right there where the problem is.
2007-08-21 16:56:47 · answer #4 · answered by Ashesmum 2 · 0⤊ 0⤋
on these , you find most got a fule it say battie, it could be bad, also it may be the battie, no good,also cheack, the reglater
2007-08-21 17:00:27 · answer #5 · answered by ghostwalker077 6 · 0⤊ 0⤋