I had to jump start it about a week ago, it started easily, Now I can't get it started. Battery is showing 12.7 volts. Terminals have been cleaned. It barely turns the engine over. If I jump it there is no difference.
It's acting like the battery is dead/low.
What should I check?
David Carrol
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"I dare you to say that to my face!" - David
Test your battery first and If the battery is good,look for a bad ground wire from the chassis to the motor/transmission. For a quick test take your battery cable and jump from the frame to the motor.
If what Sean said still doesnt work, could possibly need a starter, good luck!!
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Keith, Krista and Family
77 38' Newell Coach Repowered from Smokin' V555TA To 325hp 8.3 inline 6 cummins, Allison 3000 series trans
87 40' Newell Coach 475hp 8V92 DD(sold)
22' 350hp Jet Riverboat
79 Ford F250 4x4
Many others to list