Stock 6.2 diesel, ran great 3 years ago when I pulled it. Went to turn the motor over for the first time in 3 years, all I get is the starter click. The starter battery cable is also getting very hot. Have 2 brand new optima yellow tops, so I know theres plenty juice and a brand new tested starter. Plan on pulling the glowplugs and putting marvel mystery oil in the cylinders tomarrow and try and turn it over without the glow plugs in. Any other ideas?