Compression Ignition Addict
Join Date: Dec 2008
Location: port arthur texas
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One other thing to check is the cable conditions themselves. Corrrosion can keep the voltage from getting from your batteries to the starter.
For example if your batts have 12v,at 800 amps, corrosion can rob several volts/amps before it gets to the starter. Leaveing you with only 11v at 600 amps. This is barely enough for the starter to engage the bendix and roll over the engine.
The repeated application of voltage can sometimes heat the wires and help overcome the corrosion and the truck will start.
Lord I shall lead them to the water but I will not try to make them drink