The 2018 and newer Equinox and Terrains pull a lot of power in Accy/tow mode. Your charge line might be too small. 12 gauge wire is needed. I've been fine at 5 hours tow time but had a dead battery after 8 hours. I'll always start and run my Nox at 4...
One of the problems I'm observing with fuel pumps and replacement parts in general is the lack of real quality control. Even brands that used to be well regarded have outsourced their production to low cost factories that have little regard for anyth...
I'll answer #1. It is an F53. The F550 is the medium-duty truck chassis and while they share some commonality, the F53 is specific as the motorhome chassis.
