Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Hi There, I'm Clayso a certified master automobile technician with 30 years of automotive repair and diagnostic experience.
I don't have any information on motorhomes, but I do know the charging system that you have. The pink wire should have B+ when the engine is running. The pink wire comes from the gauges fuses and goes to the charge indicator light and the regulator in the alternator. Since you have B+ on the BAT terminal and if you have B+ on the pink wire at the alternator when running and the alternator isn't charging the alternator is defective.
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Yes it has an internal regulator and no on this charging system setup the power should already be there from the fuse. Basically when there is B+ on the pink wire the alternator should charge, the regulator controls the amount.
You're welcome. The last time I was into an engine compartment on a motorhome I replaced the V belts. I went in through the interior and over the motor, it also seems like there was enough room for me to get under and at the front lower part of the engine. This was a Chevy and about 20 years ago.
Unplugged is fine, as long as B+ is present. I say the alternator is defective.