duct tape & zip ties
Join Date: Jul 2006
Location: Willis, MI
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Hook the computer up to the truck prior to starting. Start the truck up and run a cylinder contribution test. You have a dead cylinder. It could either be bad compression or a bad injector.
A cylinder contribution test will point you to the cylinder that is not operating properly. Also with the key on engine off you can run an injector buzz test. This will tell you if all the injectors are getting electrical signal to fire that injector.
From that point you can also check the ICP pressure to see if the HPOP is putting out enough oil pressure for the injectors.
lastly you will need to pull the glow plugs one by one and do a cylinder compression test. You will need the proper adapter for the compression test gauge for the ford 7.3L powerstroke.
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2005 6.0 Crew Cab Long Box Lariat, current truck
2004 6.0 destroyed by contaminated fuel
2002 7.3L burnt