97 Passport no fan problem

I just replaced the alternator and the battery on my Passport, Now I dont have ant A/C or Heater, The fan is not working ,also I have the BAttery and brake and 4wd lights on in a ghost kind of way. I just dont get it. any help would be great. thanks

what brand of alt did you put in? Isuzus are super picky. There was a recent post where 1 owner had to buy 3 aftermarket alts to find one that worked....

what brand of alt did you put in? Isuzus are super picky. There was a recent post where 1 owner had to buy 3 aftermarket alts to find one that worked....

I just went to advance auto parts and got one but why isnt my fan working?

Took the alternator back and it was tested, and everything is Ok, I still have only 12V on my voltmeter and dummy lights on brake battery and 4wd indicator. I checked every fuse too

I just replaced the alternator and the battery on my Passport, Now I dont have ant A/C or Heater, The fan is not working ,also I have the BAttery and brake and 4wd lights on in a ghost kind of way. I just dont get it. any help would be great. thanks well 99.9% it is the charging system, and 98.9% it is the new bigboxpartsstore rebuilt alternator.

you need to return it and get your money back. go to an independent parts store and buy a rebuilt by bosch alternator. or go to the dealer and pay even more.

nevertheless, first make sure you have checked all the battery connections, alternator connections and all the grounds in the system by removing them, cleaning them and coating with dielectric grease before reinstalling.

//bc