OEM Chevrolet Uplander Fuel Injector

Chevrolet Uplander Fuel Injector Parts Questions & Experts Answers

• Injector
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  Q: How to replace the fuel injector and fuel rail on Chevrolet Uplander?

  A: The first step to replace Fuel Injector and Fuel Rail involves writing down the 8-digit identification number present on the Fuel Rail because it serves as a reference point when it comes to servicing or part replacement. The proper orientation of black o-rings on top and brown o-rings on bottom serves as a preventive measure to reduce fuel leak hazards resulting in fire accidents and personal injuries while performing Fuel Injector o-ring installation. Fittings need to be capped down and holes need plugging to avoid service-contaminating agents. Engine oil will suffer fuel contamination whenever fuel injectors leak. First remove the fuel pipe from the Fuel Rail before separating all connecting wires. Following removal of the upper Intake Manifold you should take out its supporting Fuel Injector harness connector bracket bolt and disconnect the camshaft position (CMP) sensor electrical connector. To start service work take away first the Fuel Rail bolts then the Fuel Rail and discard o-rings at the end of each injector spray tip with caution towards electrical connector pins and nozzles. The operation needs the Fuel Injector retaining clip and also requires removal of the Fuel Injector for future disposal together with the upper o-ring. Installation of new o-ring seals should be performed instead of using repeated o-ring seals. Empty the new injector o-rings of clean engine oil before installing the new upper o-ring followed by the Fuel Injector to the Fuel Rail if necessary with the Fuel Injector retaining clip. When working with fuel system components always take precautions to protect against contamination by plugging the ports of the Fuel Rail. As well avoid cleaning with compressed air or solvent baths for such components. Use engine oil to lubricate the new lower injector o-rings before placing the Fuel Rail assembly into the Intake Manifold during its installation procedure while slightly tilting the rail to fit the injectors. Install the Fuel Rail bolts with 10 n.m (89 lb in) torque setting while reconnecting the cmp sensor electrical connector and installing the Fuel Injector harness connector bracket to the Intake Manifold before bolting it with 8 n.m (71 lb in). After reinstalling the upper Intake Manifold connect all remaining electrical connectors along with attaching the fuel feed pipe to the Fuel Rail. A final inspection should be conducted by enabling the ignition for 2 seconds followed by disabling it for 10 seconds before enabling it again to check for fluid leakages.