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Old 02-14-2020, 08:57 AM   #9 (permalink)
SRR
Diesel Apprentice
 
Join Date: Mar 2011
Location: Gulf Coast
Posts: 397

Wow, I'm glad I posted this question. I'm tending to go with the capacitor theory since the voltage continued to drop. I read it yesterday afternoon at 0.1 v and I'm testing with the batteries completely disconnected from the truck. I'll check the pH of the coolant and will see if I can read any charge from the coolant itself. I'm having a hard time wrapping my head around how a radiator acting as a battery could put current into the electrical system of the truck, like at the cigarette lighter. With quite a few years on the coolant but only a few thousand miles, it's probably due to be changed anyway. pH should tell me something about that. I'll check my meter on a potato. I think there's one still in pretty good shape out on the compost pile and maybe one still in the house. We do have some good sweet potatoes. Thanks y'all!
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'94 K3500 Silverado DRW long bed crew cab 4X4 with most of the options
Bought on 3/23/11. Current mileage 161,805
It came with new 6.5L TD Goodwrench crate motor dealer installed at 99k miles and 4L80-E trans rebuild at 135k miles
G80 4.10 rear, 225/75 16 tires
New Stanadyne FSD on 3x6x1 aluminum heat sink, remote mounted above and behind the bumper.
Heath Turbo Master, Hayden SD fan clutch & trans cooler
Diamond Eye 4" exhaust, GlowShift diesel combo gauge. Analog EGT, Digital Boost & Trans Temp
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