Okay guys, I have a question about the electrical system on Rawhide the crew cab('97 C3500 Silverado, 5.7 etc.)
The power locks quit working again yesterday evening. Every time this has happened since we've had this truck, it's been a precursor of battery problems. The current battery has been in it since May 9 of this year, replaced a new one bought and installed on December 6 of last year. That one replaced a battery I installed in August or September last year, when the group 75 one that was in the truck quit. That first replacement was a used group 78 that I was given, so I have no issues with it. But these allegedly new ones from Sam's Club, first one was $150, and they're supposed to have 3 year replacement, no BS, I think should last longer..... especially since we have to have the Plus membership at $110 annually to have ANY warranty.
The cables are tight and clean, and the connections under the hood look good. The voltmeter starts out at 13.5-14, and then tapers off some once we've driven a couple of miles. The AC has a brand new blower motor that works great, and all the other accessories and lights work normally and properly. Trailer wiring isn't hacked up, and the added connector harness is installed and grounded properly.
I think the alternator is good, the belt and tensioner seem tight, so what do I need to look at here? A new battery is a whole paycheck for me, so I really don't want to go there every 5-6 months....
Thanks in advance!