So, my daily driver 1993 D250 with the 5 speed all of the sudden won't crank or start...the key turns on all the dash lights but does not seem to have the last 1/4 inch spring back action when the starter is supposed to be activated by the key in the switch..I was able to start by jumping a wire from battery to the starter brown wire off the 2 wire connection by the battery so I know the starter works fine...however when I tested the battery when it was running it only showed 12.15 or so and not the 12.7 I would expect if it was charging...
Some had said it might be the ignition switch itself that is not fully activating the alternator or starter relay but not to just throw parts at it till figure out which is the issue but not really sure HOW to test to see which could be..ANY help in figuring it out would be great and where to start at first.
TIA
PS last week it would not do anything to start and as soon as I put in a extra ground strap from engine to firewall it started right up but even without that it was charging at the normal 12-8-14.00 range which now is not