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SVTPerformance's Chain of Restaurants
Road Side Pub
07 f150 5.4 knocking sound
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<blockquote data-quote="kevinatfms" data-source="post: 14848054" data-attributes="member: 39344"><p>Due to garbage in the system. Yes, they do gunk up with crap which lowers oil pressure due to the small ports in the oil flow control manifold on the front of the head. Enough to warrant a new engine after 150k miles? Nope.</p><p></p><p>Replace the oil flow control manifold at the front of the head with the updated part numbers and you fix a large issue. That was the reason why the original from the factory engine didnt produce 20psi at the head. Junk design with too small ports? Yes, but not ****ing garbage.</p><p></p><p>As for it burning the main thrust bearing up? No. Not even close. Crank walk was due to the Saleen blowers. Nothing more. They replaced the engines in the trucks that had the problem and that was it.</p><p></p><p>Oh and grabbing a 5.0 isnt the end all. Seems a few in the trucks have been having harness and solenoid issues also.</p></blockquote><p></p>
[QUOTE="kevinatfms, post: 14848054, member: 39344"] Due to garbage in the system. Yes, they do gunk up with crap which lowers oil pressure due to the small ports in the oil flow control manifold on the front of the head. Enough to warrant a new engine after 150k miles? Nope. Replace the oil flow control manifold at the front of the head with the updated part numbers and you fix a large issue. That was the reason why the original from the factory engine didnt produce 20psi at the head. Junk design with too small ports? Yes, but not ****ing garbage. As for it burning the main thrust bearing up? No. Not even close. Crank walk was due to the Saleen blowers. Nothing more. They replaced the engines in the trucks that had the problem and that was it. Oh and grabbing a 5.0 isnt the end all. Seems a few in the trucks have been having harness and solenoid issues also. [/QUOTE]
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SVTPerformance's Chain of Restaurants
Road Side Pub
07 f150 5.4 knocking sound
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