i have a 1990 chevy van i ch aged the alternator the battery and the belt and it still is discharging why?

Question

the voltage regulater is built in to the altenater

Answer 1

Possibly a short somewhere?

Answer 2

Hook up a voltmeter to the battery. it would learn 12.6 volts. Now initiate the van, and the voltage ought to pass as much as fourteen.5 volts or so which potential it quite is charging. If no longer, then you quite nevertheless have a difficulty with the alternator or wiring. If it passes this try, it potential some thing is draining the battery while the motor is off. attempt to locate the source of the burden and get rid of it, or turn it off.

Answer 3

I take it your battery is losing its charge. You have something shorting to ground. You can try removing unneeded fuses to see if you can isolate the problem area.

Look around the engine area for any signs of wiring rubbing against something. Look for electrical tape... it is a sign, someone had a problem.

If the problem is severe, you should have one wire getting warm or even hot. Track that line down, it is the problem.

Answer 4

Possible short or ground wire broken some where. Plus, all rebuilt alternators are good.

Answer 5

the computer alway needs battery juice so there will be a little draw at all times. witch of the battery terminals did you install last ? it should be the neg last.

Answer 6

Ck with volt meter at the battery. should be close to 14 volts if its charging, if not ck plug in connector at alt for voltage with key on.If this wire is dead it won`t charge. hope this helps.

Answer 7

try changing your battery terminals an clean the corrosion of the posts to your battery

Answer 8

if you have a gage try changing that but you might have got a defective alternator