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Just finished installing a fresh long block in a 2004 F250 4x4. Filled it with fluids this evening and turned the key, immediately I heard a muffled pop sound while cranking through the filter. I pulled the charge air tube at the intake elbow and spun it again. It sounds just like a tight intake valve. Fired it up, I can still hear it, a muffled pop, pop, pop, pop in the intake through the filter while running. (Only ran about 2 min)
Shut it down to try and figure out what is going on. The long block was purchased from an engine-building company with a good reputation from what I could see before I ordered it.
How could an intake valve be too tight?
I can feel the pulse in the intake air with my hand
HELP ME PLEASE, lol
Thanks
I will take an infrared heat gun tomorrow to see which cylinder(s) are colder. It does have a check engine light on. It was torn down for close to a year. All the accessories went together very nicely.
Is it possible for an injector to make a sound like that in the intake?
We are limited with electronic test equipment, maybe a dongle, lol.
Find the cool cylinder, pull the valve cover, roll the engine by hand to verify that all the intake valves have lash?
Shut it down to try and figure out what is going on. The long block was purchased from an engine-building company with a good reputation from what I could see before I ordered it.
How could an intake valve be too tight?
I can feel the pulse in the intake air with my hand
HELP ME PLEASE, lol
Thanks
I will take an infrared heat gun tomorrow to see which cylinder(s) are colder. It does have a check engine light on. It was torn down for close to a year. All the accessories went together very nicely.
Is it possible for an injector to make a sound like that in the intake?
We are limited with electronic test equipment, maybe a dongle, lol.
Find the cool cylinder, pull the valve cover, roll the engine by hand to verify that all the intake valves have lash?