Need a little help thinking through the best place to start with some electrical problems.
I have a 2008 Suburban 4WD with the 5.3 that I bought recently.
It had some charging issues when I bought it and I found the battery was weak. Replacing it helped, but I still had intermittent issues. I discovered the battery cables both had high resistance. Replaced those and the charging is solved.
Now I have a few other issues...
The front passenger side door lock doesn't work. It tries but it seems like the actuator is weak or not getting enough power.
The passenger side mirror will fold in, but slowly. It will not open back up.
The passenger rear window will not roll up with the switch in that door. It sometimes rolls down using that switch. It works fine using the switch on driver's door.
I am getting code P0463 (fuel sending unit high voltage signal). The gas gauge fluctuates and it's never right. It sometimes drops to empty and throws the code when it does.
The alternator sometimes whines (not through the speakers, but similar sound). The alternator is brand new.
It all makes me think a bare wire is causing a short or there's a ground issue. And maybe they're not all related. I've crawled around looking at the wiring and haven't noticed anything obvious. I started checking grounds, but haven't found any issues so far.
Any idea where I should start looking? Does all this narrow down likely problem areas?
I have a 2008 Suburban 4WD with the 5.3 that I bought recently.
It had some charging issues when I bought it and I found the battery was weak. Replacing it helped, but I still had intermittent issues. I discovered the battery cables both had high resistance. Replaced those and the charging is solved.
Now I have a few other issues...
The front passenger side door lock doesn't work. It tries but it seems like the actuator is weak or not getting enough power.
The passenger side mirror will fold in, but slowly. It will not open back up.
The passenger rear window will not roll up with the switch in that door. It sometimes rolls down using that switch. It works fine using the switch on driver's door.
I am getting code P0463 (fuel sending unit high voltage signal). The gas gauge fluctuates and it's never right. It sometimes drops to empty and throws the code when it does.
The alternator sometimes whines (not through the speakers, but similar sound). The alternator is brand new.
It all makes me think a bare wire is causing a short or there's a ground issue. And maybe they're not all related. I've crawled around looking at the wiring and haven't noticed anything obvious. I started checking grounds, but haven't found any issues so far.
Any idea where I should start looking? Does all this narrow down likely problem areas?