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The oil pump is bolted to the front main bulkhead. The crankshaft goes through the pump ( like alot of jap engines) The relief valve is on the side of the pump. It requires dissasembling the front of the engine to gain access. It's rare for a valve to stick. You may have big problems brewing.


Common problems with a ford 4.6,5.4,6.8 engines Cammed sickTv ... This Is What Happens If You NEVER CHANGE YOUR DIFFERENTIAL OIL!! - Duration: 9:13. ... 1991 Ford 4.6 Modular V8 Engine Features ...


4.6L Lubrication System: The Ford 4.6/5.4-series engines use a crank-driven gerotor oil pump, a clever design that does away with much of the machinations of the past that were a necessary evil of an engine with a


Melling Tech Director George Richmond explains the Melling Select Performance Oil Pump offering for the Ford Modular Engines 4.6L 5.4L & 6.8L. Visit melling.com or call 517-787-8172.


Modular V8 (4.6L, 5.4L) - 4.6 oil pump help - what drives the oil pump on the mod motors. havent had one apart. wifey's 94 Tbird no PSI... could it break a shaft?... I hate cold wheather.


Ford Explorer loss of oil pressure - 143 reports. Learn about this problem, why it occurs, and how to fix it. Ford Explorer loss of oil pressure - 143 reports. Learn about this problem, why it occurs, and how to fix it. ... lost oil pressure while driving engine was full of oil and no leaks. pulled motor to take a look at the oil pump and drive ...


I have a question about lubrication problems on Ford 4.6 engines. I have three Crown Vics and they all have a dry rattle on startup after about 1500 miles on an oil change. This is using Motorcraft 5w20 syn blend and the motorcraft filter. Is this normal for this engine.


1st gen 4.6 good for alot of miles. seen with 200-300k running good. Managed a fleet with 170 vehicles, 80% Ford. Had a unit that the low oil pressure lighton at stops, replaced sending unit, no change. Had the throttle body cleaned and problem went away. the idle increased just enough after the cleaning to eliminate problem.


The engine of an automobile relies on many parts functioning properly. It should be no surprise that if one becomes deficient; it is going to cause a great deal of wear on the engine itself. The oil pump is something that is often taken for granted and should not be.Proper maintenance and care are necessary to keep this engine part performing smoothly.


The next problem is the one that puts these trucks in the shop the most. The egr and dpf system is a nightmare. ... Ford recommends 10,000, but the oil gets so diluted at that interval that engine damage can occur. ... What that means is that there is a central injection pump that pressures the fuel up to 24,000 psi and delivers it to a rail on ...