Re: Battery Voltage Starting???
The glow plugs will really knock it down and they don't shut right off after the truck starts so you may see a low voltage for a minute after she fires .
however that low and slow crank is a reason tor load test them and if bad replace in pairs
WHY ? because they are tied together without an isolator so the better battery will always be draining into the lower voltage battery
best to get two matching batteries
bad or low batts are not a freind of the 6.0 electronics
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