Quote:
Originally Posted by RayLivingston
OK, brand new Bosch alternator is in, along with a new radiator. All seems OK-ish, so far. Battery was fully charged (overnight), and showed 13.1V with no load 24 hours later, after cooling down. Alternator output seems to be mostly 14.5-14.7V, which is a bit higher than I expected. OBDFusion reports occasional single samples up to about 15.1V, but I believe that is noise in the Bluetooth adaptor, as I also saw at least one down around 11V. Driving around (just a few miles), it was mostly between 14.3 and 14.7V. When I checked the steady state value, with engine idling, OBDFusion shows 14.7, and I measure 14.7 directly on the battery terminals with a Fluke DVM, and 14.9V between the engine block and the "jumpstart" block on the RH side of the engine bay.
My battery is an AGM. Does that voltage seem right? I suspect with a bit more driving, it will likely come down a bit, but don't know yet how much. I'll take it for more of a drive tomorrow and watch what it does.
Tomorrow I'll try to rig up long leads for the DVM, and directly measure voltage drop across the two main cables from the battery to the engine bay, and also try to get a reading of voltage in the engine bay when cranking, to ensure no bad connections in the big cables. I did check the engine ground strap, and it is clean and solid.
Is there anything in INPA that would be worth looking at?
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The voltage on the new alternator seems on par with what it should be. Remember, you have a 180amp alternator.