2000 explorer voltage issue

[PaleBlue90]

my buddys exploder is acting up. i gave him my 130 alt, it hookes up. new battery,new wires. and the gauge reads low and the battery light is on. he let someone take a look at it and they put the batt in backwords. now his radio doesnt work. i think it is toast. everything else works. it just reads low,the lights seem dimmer then normal and the battery light it on.

its a 4.0 5 speed eletronic 4x4

 

[adsm08]

Having the battery in backwards (and possibly running it that way) could fry the radio.

It can also fry the battery, the voltage regulator, the new alternator, and a lot of other things.

 

[PaleBlue90]

Having the battery in backwards (and possibly running it that way) could fry the radio.

It can also fry the battery, the voltage regulator, the new alternator, and a lot of other things.

well i figured that, thats why i sold him my alternator.

like i said i replaced the alt,battery, and voltage regulator. any ideas?

 

[88_Eddie]

the battery also needs to be fully charged when you put it in or it can fry the alternator, i know you said it was new, but i've brought one home that was dead

 

[PaleBlue90]

the battery also needs to be fully charged when you put it in or it can fry the alternator, i know you said it was new, but i've brought one home that was dead

its good. reading 12.6 volts and has a full charge

 

[Sasquatch_Ryda]

Check all the fuseable links if the batter was hooked up backwards....this will usually fry them.

 

[PaleBlue90]

Check all the fuseable links if the batter was hooked up backwards....this will usually fry them.

thats one of the 1st things i checked. still haveing this issue. any ideas?

 

['99 EB Explorer]

Just because there's good voltage doesn't mean the batt is good. When I was working at the dealership, our tester ran 2 tests, one was for voltage and I can't remember what the other was for. Point being, the battery could still be toast.

 

[PaleBlue90]

hey everyone, starter solinoid,batt,alt and battery cables are all new and this problem is still here. any ideas?