when cranking. If the tachometer does not move, the CPS is most likely bad. The fuel filter/water separator also tends to be a minor failure point across the trucks. The filter housing tends to develop cracks in the aluminum housing and leaks fuel. The heating element contained in the filter housing also can short out, blowing a fuse and causing a no start condition. The turbocharger up-pipes are a large failure point, with the pipes leaking from many different points but mainly from the joints. Leaking of the up-pipes causes the engine to lose boost and cause exhaust gas temperatures to increase. The EBPV exhaust back-pressure valve (EBPV) was also prone to failure; it could close when cold and get stuck on causing a jet engine like noise coming from the exhaust. Most of the issues that came out of these motors were due to poor electrical connections. The UVCH (under valve cover harness) was prone to losing contact with either glow plugs or injectors which caused rough starts or a misfire depending on the year. 1994–1997 engines have two connectors going into each bank, whereas 1999–2003 engines had one connector going into each bank; troubleshooting the harness was easier for the 1994–1997 engines. The 7.3 L DI Power Stroke was in production until the first quarter of model year 2003, when it was replaced by the 6.0 L because of its inability to meet California noise regulations, not the commonly believed emissions standards. Nearly 2 million 7.3 L DI Power Stroke engines were produced in International's Indianapolis plant. The 7.3 L DI Power Stroke engine is commonly referred to as one of the best engines that International produced. 6.0 Power Stroke The Power Stroke was replaced by the beginning in the second quarter of the 2003 model year. The 6.0L Power Stroke, was used in Ford Super Duty trucks until the 2007 model year but lasted until 2009 in the Ford Econoline vans (model year 2010) and in the Ford Excursion SUVs until after the 2005 models when Ford discontinued Excursion production. The engine has a bore and stroke creating a displacement of . It utilizes a variable-geometry turbocharger and intercooler, producing and torque with an 18.0:1 compression ratio, with fuel cutoff at 4,200 rpm. Many 6.0 L Power Stroke engines experienced problems. Key specifications Fuel injection system: Split-shot HEUI (hydraulically actuated electronically controlled unit injectors) Valve train: OHV