Feral peasant
Newbie
[98 k2500 5.7vortec]I have a plow set up(not being used) sub, amp, and blower always on (resistor is messed up) but my battery gauge on my dash will dip sometimes and the blower drops in speed meaning it is something electrical and not just the gauge being wacky, any ideas on what it could be? I believe the previous owner put a 135 or something amp alternator in. A couple months ago I went to advanced auto and got the amp tested and they said it was fine. I don't really have the testing equipment at all so just figured I'd toss this out and maybe someone had the same problem as me