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Does a 2002 Chevy Trailblazer have fuel injectors?
The fuel injectors on your 2002 Chevy Trailblazer are part of the fuel-injection system that mixes fuel with air in the engine. A bad or dirty injector can lead to poor fuel economy, a sputtering engine or weak and intermittent engine firing.
Do I need a special tool to remove fuel injectors?
Ratchet set or Phillips screwdriver – removal of fuel rail. Fuel Injector Puller – tool used to remove the fuel injectors (not required, but makes the removal job much easier and prevents you from being too rough and potentially damaging the injector in the removal process)
How do I replace a fuel injector in a 2003 Chevy Trailblazer?
Replacing a fuel injector on a 2003 Chevrolet TrailBlazer 4.2-liter engine involves removing the entire fuel rail. If you have not tried to clean the fuel injectors, you should try cleaning them first, with a fuel cleaning system available at any auto-parts dealer.
How do you Prime the fuel system on a Chevy Trailblazer?
Plug in the fuel injectors’ electrical connectors. Replace the vacuum line on the fuel pressure regulator. Reinstall the intake manifold and the battery cable. Plug the fuel pump relay in. Turn the engine on for two seconds, then off for 10 seconds to prime the fuel system. Start the TrailBlazer and check for leaks.
Where is the fuel pump relay on a Chevy Trailblazer?
Relieve the pressure in the fuel system by removing the fuel pump relay, located in the relay box near the driver’s-side fender well. The cover of the relay box shows you which injector is the fuel pump injector. Remove the relay, then crank the TrailBlazer over a couple times. Clean the fuel rail with carburetor cleaner and rags.
How do you replace an injector on a Ford Ranger?
Remove the retaining clips and remove the injectors from the fuel rail assembly. Remove and discard the O-rings and seals (two per injector). Replace the injector O-rings. Apply a light coat of clean engine oil to the O-rings and press the injector into the fuel rail until seated. Install the injector retaining clips.