I don't think an accessory drive would keep the crank from turning? With belts off, it might make the crank easier for you to turn. Fluid in the cylinders could cause hydrostatic lock, pull the plugs.
I've seen parts that were tested good at the store, but, wouldn't work on the vehicle. The store uses their own voltage hook-ups. You use the circuits on the truck. Can you tell if the starter drive gear is hooking up with flywheel? On some makes and models, there may be a dust cover that you can remove, for the flywheel, if you can see the starter gear, see if it is acting correctly? Hey, right now, I'm stumped also?
At some point, I'd have to try an other starter. Ask the person at the parts house if you can bring the starter back if it doesn't fix the problem? If you had the starter tested at a store, that store may not agree to a return, try a different store. Some stores will let you return an electrical part, some won't, it don't hurt to ask.
Monday, November 30th, 2009 AT 9:41 AM