OEM 2004 Chevrolet Blazer Fuel Injector

2004 Chevrolet Blazer Fuel Injector Parts and Q&A

• Q: How to replace a fuel injector on 2004 Chevrolet Blazer?

  A: The first step to replace a Fuel Injector begins with disconnecting the negative Battery Cable followed by relieving fuel system pressure. First remove the upper intake manifold assembly together with the fuel meter body assembly. The injector assembly retainer requires removal together with its lock nuts after ensuring secure handling of the electrical connector terminals when removing fuel injectors since liquid cleaning agents cannot be used on them. Lower the poppet nozzle tube downward as you insert a small tip punch to push between injector terminals until the injector becomes free. The new injector installation requires clean engine oil for o-ring seal lubrication before installation of the injector assembly o-rings. To install the Fuel Injector assembly within the fuel meter body injector socket apply the injector assembly retainer and the injector retainer lock nuts which need to be fastened to 3 n.m (27 lb in). Reinstall the fuel meter body and upper intake manifold before tightening the fuel filler cap and battery reconnect. Conclude the leak test procedure by enabling the ignition for 2 seconds before shutting it off for 10 seconds and then re-enabling it while checking for fuel leaks.