5.4 3v engine quit while driving after phaser replacement
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5.4 3v engine quit while driving after phaser replacement
So I replaced both phasers, timing components and oil pump on my 2005 F250 5.4l 3v. Upgraded the oil pump with a Meiling M360. Used the Ford crankshaft holder to align the crankshaft. Primed the engine with the crankshaft sensor disconnected. Connected the crankshaft sensor, engine fired up immediately. No drivetrain noises. Engine idled perfectly. Let engine come up to operating temp. Upper rad hose warm, heat from vents. Took truck for test drive. Stumbled a few times on acceleration. Then engine quit. Would not restart. No crank. Starter engages but will not turn over engine. Sounds like engine is locked up. No check engine light on prior to engine quitting.
Any thoughts on where I should start to look? Thanks
Any thoughts on where I should start to look? Thanks
Fleet Mechanic
Joined: Oct 2017
Posts: 1,704
Likes: 164
From: Southwest Ohio
What did you use for the oil pump pickup? The original pickup or one that came with the Melling pump? If you used the Melling pickup, did you check for pan clearance? I’ve seen pump pickups that actually touched the bottom of the oil pan.
Can you turn the engine over with a breaker bar? If not, quite possibly the pickup is lying in the bottom of the oil pan. I do not know how the Ford pickup attaches to the oil pump, though. Is it bolt on or interference/press fit? I always tack weld the press-in types.
— Dave
Can you turn the engine over with a breaker bar? If not, quite possibly the pickup is lying in the bottom of the oil pan. I do not know how the Ford pickup attaches to the oil pump, though. Is it bolt on or interference/press fit? I always tack weld the press-in types.
— Dave
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