The HPOS on the 03 to early 04 6.0L Power Stroke engines are a different design and most of the issues are caused by a bad ICP (injection control pressure) sensor, located under the turbo, which fails due to heat, or a failed HPOP (high pressure oil pump) and / or a failed IPR (injection pressure regulator). Symptoms are hard start / no start, loss of power and occur mostly when engine is hot. If you still have the STC fitting on your 05-07 6.0 Power Stroke Engine, it is just a matter of time before it fails. The STC fitting was used in the 05-07 6.0L Power Stroke engines and has a 100% failure rate. Ford has improved the design of the O-rings and has an updated fitting that replaces the STC (snap to connect). Problems with the HPOS are oil leaks (internal to the engine) due to failed/deteriorated O-rings that are caused by excessive oil temperatures (bad oil cooler) and high pressure. The 6.0L Power Stroke fuel injection system operates on oil pressure, very high oil pressure. 1) Ford 6.0L HPOS (High Pressure Oil System)
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Read our guide on how to bulletproof your 6.0 Powerstroke or the 7 best mods for the 6.0. Note: This article is not to discredit the 6.0, just to address some common issues, which can be resolved, resulting in a much more reliable engine.īelow are the most common problems associated with the 6.0 Power Stroke engine. Some of the early 6.0 Power Stroke engines experienced problems, and it is speculated to have cost Ford millions of dollars in warranty repairs and buy backs. It also uses a 2nd generation (G-2) HEUI (Hydraulic-Electronic Unit Injector) direct injection fuel system. lbf (759 Nm) at 2000 rpm, but as of 2005 that was increased to 570 lb.Output was 325 hp (242 kW) at 3300 rpm and 560 ft The VT365, also known as the 6.0 Liter Power Stroke diesel engine was used in 2003-2007 Ford Super Duty trucks and 2003-2010 Ford E-Series vans/chassis cabs, is a 32-valve pushrod V8.