Blew head gasket, replaced it then put the engine back together. Pulled codes, no codes detected. Compression check indicated normal. Fuel supply is assumed to be OK since its dumping so much fuel into the engine. The engine didnt have spark so I performed ignition circuit testing and identified a bad ignition control module. Replaced ignition control module and obtained spark on all 6 cylinders.

Pulled fuses to disable fuel pump and cranked engine without plugs in to verify adequate oil pressure (55 lbs) before starting. Pulled codes before cranking, no codes detected. Installed plugs, attached wires then cranked engine. Engine cranks but will not start. After a few cranks it hydrolocked indicating fuel in the cylinders. I believe the gas was introduced during the ignition circuit diagnosis.

My question is how do I verify that the cylinders are full and get the gas out if they are filled up? Pull the plugs, disable the fuel pump, and crank the engine a few times to force it out the spark plug holes.?

 

Yep. Make sure that wires are out of way. Don't want any stray sparks causing fires.

 

best way to avoid anything like that happening and easier than disabling a bunch of stuff is to crank it over manually. pull the plugs and stick a 5/8 in socket on the crank bolt with a breaker bar and turn it over