WranglerX
Super Member
Slow cranking issues are usually caused by:
Bad Battery
Dirty/corroded terminals on battery cables.
Battery/ground cable with corrosion under insulation (no visible indicators).
Poor/corroded ground cable (from battery) connection at chassis/engine.
Starter solenoid (high amperage contacts) beginning to fail.
Starter beginning to total fail. Bad winding or bearings in starter.
Maybe more but these would be things I would check first....
Bad Battery
Dirty/corroded terminals on battery cables.
Battery/ground cable with corrosion under insulation (no visible indicators).
Poor/corroded ground cable (from battery) connection at chassis/engine.
Starter solenoid (high amperage contacts) beginning to fail.
Starter beginning to total fail. Bad winding or bearings in starter.
Maybe more but these would be things I would check first....