morning experts and fellow f150 drivers, i have an 02 f150 5.4 4x4, drowned it a while back, thought i had hydro lock, crank can be turned by hand though as far as i can with a wrench, so internals seem to be fine, no bent or broken rods that i could tell, ripped everything apart cleaned it up put it back together, new fuses, new ignition relay, new starter, alternator and battery as well, turned the key to on and got all my electronic stuff back up, turned to start and it all goes dark, which i assume is because at that point its sending power to the starter, but the starter didnt turn or crank the engine..., so question being when i put my new starter on is it possible that i might have crossed a wire or somethin that would cause it to not crank? and due to the fact that i had water in it, and had hydro locked it, all my plugs are out, now im not an idiot so please no trolling my thread, i know that spark is needed for the engine to run, but shouldnt be needed just for the crank to turn right? question being is that once i fix the wires on my starter, im looking for initial crank before start up, so do i need to put a plug or two back in and hook them up to help it crank? or will it crank without them? and yes before anyone asks i did replace all my fluids as well.

 

That usually means a bad battery, battery cable, or battery cable connection if EVERYTHING goes dark. Run a voltage drop test on each segment of the circuit and see where you're losing your power.

https://www.ford-trucks.com/forums/1...l#post12453376

 

the battery, alternator, fuses, ignition or AKA starter relay/solenoid (everyone calls it something different), and starter are all new. not even a week old yet.

 

Go back and read my recommendation.

 

ran voltage drop test. everything came back fine, re wired the new starter and am back to the old issue of when the key hits the start position i get one grunt and then nothing more. originally i was able to turn the crank by hand but now am no longer able to, all fluids have been replaced, and all hydrolock repairations have been done short of ripping apart and rebuilding the entire engine, block and all., any advice or opinions and ideas?

 

Have you tried turning the crank with a breaker bar with the serpentine belt removed? You might have a frozen accessory, the compressor and alternator are the usual suspects.

 

I did indeed try with a breaker bar, Alternator is brand new, i can try it with the belt off, i hadnt thought of that, if it still wont turn after that where do i go from there?

 

A/C compressor pulley is probably the most common accessory to lock up the engine.

If automatic transmission, then replace or rebuild the engine.

If manual, take the transmission out of gear and retest.

 

it is indeed an auto, as for rebuilding, i dont have all the necessary equipment, as for replacing, im all for it, if anyone knows of a donor truck anywhere inside VA or NC with a 5.4 long block, VIN 8th digit is L