OEM 2006 Chevrolet Cobalt Fuel Rail

2006 Chevrolet Cobalt Fuel Rail Parts Questions & Experts Answers

• Q: How to replace the fuel rail assembly on 2006 Chevrolet Cobalt?

  A: The first step before replacing the Fuel Rail assembly should be to drain the fuel system pressure. Start by unclipping the outlet duct of the air cleaner before you unfasten the fuel feed line quick connect fitting from the Fuel Rail then cover or plugging all fuel line openings to block possible contamination. You should disconnect the engine harness electrical connector from the Fuel Injector harness before unlocking the connector clip from the Intake Manifold. Detach the fuel rails by pulling it upwards and backwards while removing all Fuel Rail bolts until the fuel injectors step free from the cylinder head ports with caution towards electrical connector terminals and spray tips. When removing the Fuel Rail it is sometimes necessary to also extract the fuel injectors. New lower o-rings must be used on recycled fuel injectors before installing them into the cylinder head ports using downward orientation. The injector tip o-rings should receive lubrication before the installation process. Using a gentle hand, put the fuel injectors into each port while installing the Fuel Rail bolts with torque at 10 n.m (89 lb in). Reinstall the engine harness electrical connector onto the Fuel Injector harness while fitting the Fuel Injector harness connector clip onto the Intake Manifold. Remove the caps from the fuel line and Fuel Rail before joining the fuel feed line quick connect fitting with the Fuel Rail. Turn on the ignition while keeping the engine off for 2 seconds then switch it off for 10 seconds and repeat the check as a leak detection test. Do this while connecting the negative Battery Cable. Put back the air cleaner outlet duct as the last step.