Servicing a 2002 Ford Expedition - Injection Protection Photo Gallery
Regular Maintenance Can Save You Big Money
The Staff of 8-Lug –
Nov 1, 2008
Photo 1/11 | diesel Engines Fuel Injectors clean Fuel System | Servicing a 2002 Ford Expedition - Injection Protection
Photo 2/11 | 0811 8l 02 Diesel Engines Fuel Injectors Justice Brothers | This is the injector cleaning tool and Justice Brothers Diesel Fuel Supplement. The center fitting at the bottom is the fuel-inlet-to-pump connection, the connector at the top right is the fuel return line, and the connector at the left with pressure gauge is the shop air connector. It's a compact little tool that does a big job.
Photo 3/11 | diesel Engines Fuel Injectors clean Fuel System | Here are the items required to clean the fuel system. Normal handtools will be used to disconnect the factory fuel line and return line. The carburetor cleaner is there to clean dirty fittings if necessary.
Photo 4/11 | diesel Engines Fuel Injectors injector Cleaning Tool Kit | The box at the right is part of the injector cleaning tool kit and contains various length and size hoses with SAE and Metric connectors to service any type of diesel-powered import or domestic vehicle.
Photo 5/11 | diesel Engines Fuel Injectors service Technician | Our service technician disconnected the fuel line at the suction side of the factory fuel pump after the primary filter, and connected the fuel inlet line from the canister to the pump. The canister acted as the fuel tank when the engine was running.
Photo 6/11 | diesel Engines Fuel Injectors justice Brothers Diesel Fuel Supplement | The canister was filled with 32 ounces of Justice Brothers Diesel Fuel Supplement. We ran the engine for approximately 15 minutes with the canister acting as the fuel source.
Photo 7/11 | diesel Engines Fuel Injectors blue Fuel Inlet Hose | Here's a top view of the blue fuel inlet hose and the black fuel return line. Due to the inaccessibility of the return line on this particular vehicle, we used shop air to force the liquid from the canister to the fuel pump. Normally the return line would recirculate the liquid back into the canister. Either way works fine.
Photo 8/11 | diesel Engines Fuel Injectors jb Supplement | The tool was now full of JB supplement. Notice the yellow on/off valve at the bottom of the canister. This shuts off and seals the system so no air can get into the fuel lines, which can cause hard starting.
Photo 9/11 | diesel Engines Fuel Injectors air Pressure | With approximately 30 pounds of air pressure applied to the canister (pressure will vary with each vehicle) the engine was started. After a few seconds to allow air in the line to push through, the engine began to run smoothly on the canister mixture. The idle was held at 1,200 rpm without any load, with the transmission in Park.
Photo 10/11 | diesel Engines Fuel Injectors air Pressure Canister | To further prevent air from entering the system, the canister should be allowed to empty no more than about 2 inches above the bottom (or approximately at the bottom of the white label). A minimum of 8 ounces should be maintained in the canister. After the cleaning, the engine should be shut off first, then close the inlet valve on the tool. The factory lines can now be reconnected and the connections checked for leaks. Your injectors are now clean and protected. A detailed instruction booklet comes with the diesel injector cleaning tool.
Photo 11/11 | diesel Engines Fuel Injectors diesel Engine Supplement | Adding a bottle of Diesel Engine Supplement once a month will help keep your complete fuel system clean and those pricey injectors happily squirting away for many years.