How to replace the Fuel Injection Fuel Rail Assembly on Chevrolet Express 2500?

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The replacement process for the fuel injection Fuel Rail assembly starts with removing both the engine cover and air cleaner resonator outlet duct first. A service technician needs to check the eight-digit number on the Fuel Rail assembly because it serves as identification for future maintenance operations. The gm x-30a Fuel Rail assembly should undergo cleaning with equivalent engine cleaners based on package instructions but needs to be protected from liquid cleaning solvents when admitted to service. The first step involves disconnecting the accelerator control cable as well as cruise control cable from the cable bracket alongside Throttle Body if present and removing the cruise control cable engine-end fitting from the throttle lever. Separate the upper engine wire harness retainer nut while discharging the evap purge valve harness connector from its port so you can shift the upper engine wire harness to another location. Use ch 48027 or without it to release fuel system pressure before marking all electrical connectors to their proper position so reassembly can ensure the correct firing sequence. Use only fingers to disconnect multec 2 fuel injector connectors because hand tools and pliers can cause harm to the components. The fuel injector connector can be disconnected by pulling up the connector position assurance (CPA) while pushing the tab then letting go of the cpa . Execute this process for every connector before removing the Fuel Rail assembly in a way that protects both electrical terminals and spray tips by supporting the rail afterward. After capping and plugging the fittings and the holes to minimize contamination you should disconnect the fuel feed and return pipes (1, 2) from the Fuel Rail and the fuel pressure regulator vacuum line. Begin by loosening the crossover tube to right Fuel Rail retainer screw and proceeding to remove the Fuel Rail bolts before extracting the Fuel Rail. Remove the o-ring seals from the lower part of the fuel injectors before disposal. After lubricating the new fuel injector lower o-ring seals with engine oil you can install them on the injectors before installation. First disconnect the screw attaching the retaining clip from the right-hand Fuel Rail while also removing its crossover pipe with o-ring. Clean engine oil should be used to prepare and install a new o-ring on the crossover pipe before inserting it into the right Fuel Rail. Prevent thread stripping by hand-starting the retaining clip attaching screw prior to installing the crossover pipe retainer and screw along with the Fuel Rail. Before tightening the Fuel Rail bolts use a 5 mm (0.020 in) band of gm p/n 12345382 (Canadian P/N 10953489) threadlock on their threads. Then install the bolts at 10 n.m (89 lb in) and the screw requires 3.8 n.m (34 lb in) torque. Attach the vacuum line from the fuel pressure regulator and connect both fuel feed and return pipes (1, 2) and install electrical connectors to the correct fuel injectors according to their firing order. The upper engine wire harness needs to be positioned first then you need to install the evap purge solenoid connector followed by installing and tightening to 5.5 n.m (49 lb in) the retainer nut on the upper engine wire harness. Fasten the accelerator control cable until it reaches the cable bracket as well as the Throttle Body alongside the cruise control cable engine-end fitting to the throttle lever. Last in the installation sequence is the engine cover followed by the installation of the air cleaner resonator outlet duct. A proper check for fuel leaks requires you to switch the ignition on with the engine off for two seconds followed by a ten-second ignition off period before turning it back on with the engine off to detect any fuel leakage.

OEM Chevrolet Express 2500 Fuel Rail

17 Fuel Rails found

Chevrolet Express 2500 Fuel Rail

Chevrolet Express 2500 Fuel Rail

Chevrolet Express 2500 Fuel Rail

Chevrolet Express 2500 Fuel Rail

Chevrolet Express 2500 Fuel Rail

Chevrolet Express 2500 Fuel Rail

Chevrolet Express 2500 Fuel Rail

Chevrolet Express 2500 Fuel Rail

Chevrolet Express 2500 Fuel Rail

Chevrolet Express 2500 Fuel Rail

Chevrolet Express 2500 Fuel Rail

Chevrolet Express 2500 Fuel Rail

Chevrolet Express 2500 Fuel Rail

Chevrolet Express 2500 Fuel Rail

Chevrolet Express 2500 Fuel Rail

Chevrolet Express 2500 Fuel Rail

Chevrolet Express 2500 Fuel Rail

Chevrolet Express 2500 Fuel Rail

Chevrolet Express 2500 Fuel Rail Parts Questions & Experts Answers

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