The 1982-83 units used a tank unit mounted water in fuel (W.I.F.) warning-system. It will detect the presence of water when it reaches the 1-2…

See Figure 4-4. The fuel pick up, commonly known as the “ sock” has three functions: 1. Strain out large solids. 2. Act as a…

Diesel fuel is sensitive to temperature. All diesel fuel has a certain amount of heavy paraffin-like components, which are high in energy value and help…

General Motors Corporation recommends that owners of 1985 and subsequent Model Year diesel engine vehicles use Number 2-D diesel fuel above 20°F (-7°C) ambient temperature.…

A fuel return system routes excess fuel from the injection pump and leak-off type nozzles.

The diesel fuel system (see Figure 4-1) consists of the following components: • Low Pressure: Fuel tank, fuel (lift) pump, fuel filter or filters, fuel…

Build up of soot (carbon) or contamination of the air filter element is a result of exhaust gases emitted from the EGR valve. During normal…

During the service of 6.2L diesel cylinder heads, the observance of hairline cracks may be noted in the pre-chamber area. Cracks on the face of…

A burned out glow plug tip may bulge then break off and drop into the pre-chamber when the glow plug is removed. When this occurs…

See Figure 3-6. A design feature is the Ricardo Comet V pre-combustion chamber which has a spherical chamber which mixes the air and fuel by…