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  Topic Review (Newest First)
09-09-2019 02:45 PM
7.3_TurboDiesel That is within spec, you’re fine. Absolutely no reason to run dual alternators unless you have a sound system straight out of SEMA


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09-09-2019 02:15 PM
skkele so i did the poor man's alternator test after i put the new batteries in and it said 13.9 or 14.1 i think. so that means the alternator is good, right? i'd love to do the dual alternator install but seems really expensive and time consuming... most people say to just rebuild the existing alternator to a higher output.
08-28-2019 12:05 PM
Buddylee I thought my batteries were dead too, even had them tested. Put new ones on and it started good for about a month and then they were dead. Turned out to be a bad alternator, but the new batteries still lasted a month before dying on me. Either my old alternator was putting out a little bit of charge, or these trucks don't use much juice after starting.
08-26-2019 03:11 PM
skkele Batteries it was! Replaced both and fired right up. Old ones measured 9.36V... deader than dead.
08-24-2019 09:09 AM
00t444e Weak batteries or worn out starter.
08-24-2019 06:46 AM
skkele
Slow crank then sudden start

Just got in the truck and it was cranking really slow, never cranked like this... Stop, reset, and cranked again, still very slow, then started all of a sudden... Thoughts? No mods. Original glow plugs.

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