Not charging replaced alternater still wont charge

hook a test lit at the alt big wire this wire must be hot all times and most of the times is protected with a fusible link prone to burn when hooked backward

if wont jump battery has internal short and is bad replace with good battery get cheap ohm meter to test alternator out put. install battery ck voltage start engine ck voltage should rear 13-14 volts if not charging will read battery voltage with steady voltage drop. running with neg. cable unhooked can cause damage from voltage spike.

have you had battery tested if battery is bad or weak the alternater will not charge properly also check cables for tightness and cleanliness as well as top of battrey check all connections at alternater and there might be a fuse or relay for charging system that is not functioning properly

Then you have a field problem without the field you wont charge B2600 uses a voltage regulator it at the side of the fire wall it a square metal box either you adjust or replace it

its eaither a bad bettery, or a bad alternater, cuz the battery will hold some charge but if the alternater dont charge the battery it wont last long, hope this helps

you have a faulty alternater there is a speed sensor in the alternator that is linked to the power steering if the alternater isnt charging the steering wont work either replace the alternater and all should be ok

First tell me why you don't think it's charging.
Because of the voltage reading you are getting at the battery terminals? The range you want is between 13.6v to 14.2v. The higher the voltage the lower the amps. and true the other way, the lower the voltage the higher the amps. If you get a reading of 13.6v or lower, the alt is nearing or at max output. An alt can only run at maximum for around fifteen minutes and it will start slinging solder from overheating. It's a good indication the battery is either totally dead or junk. Charging above 14.2 the alternater is running wide open and is only putting out high volts which will cause the battery to boil , in turn destroying it. This is a bad alternater. All alternaters have integrated voltage regulater with the exception of ver few of the earlier ones. You cannot test an alternater by removing a battery cable to see if the engine keeps running without taking great risk of damaging the alt, regulator. So tell me why you feel it isn't charging. Remember an alt is not made to charge dead batteries. Their sole function is to maintain the battery charge. Without a battery, the alt won't last 10 seconds.
Hope to hear from you and good luck.

sometimes you are just the unlucky soul that gets bum alternators or your battery in the truck has enough juce to crank it over but is almost dead and your alternator is burning up trying to charge a battery that wont accept a decent charge. plus clean the battery terminals

If able, ck the charging voltage at the battery. The alternater should be charging the battery between 13,6 to 14.2v. The lower the voltage the more its charging. Make sure both battery cables are clean and tight. Good Luck.

Once the battery was placed backwards it may have sent a charge to the radio causing it to stop working, the alternater you should just try to either get it directly replaced same model..but if you want to try make sure all conectors are the same...other then that you can probly get a rebuilt one cheaper...rebuilt your current one will make sure its the same...and one major thing before you change anything make sure that the belt is on properly for the alternator and everything and just check if you are geting any charge from it