Changing Fuel Injectors: 2000 Chevy Blazer Step-By-Step Guide

The 2000 Chevy Blazer has a spider injector assembly, which is a style of fuel injectors that injects fuel directly into each cylinder. The fuel injector is located under the intake manifold.

The fuel injector is located under the intake manifold

The fuel injector plays a crucial role in the fuel delivery system of your Chevrolet Blazer's motor. This valve receives signals from the engine's computer system to regulate the exact amount of gasoline required by the motor. Since the amount of oxygen is always changing, the fuel injection system must constantly adjust the amount of gas it delivers. The pump in the gas tank delivers the pressurized gasoline to a nozzle in the fuel injector. Once the gas is inside, the fuel injector sprays a gasoline mist into the motor's intake manifold. It then passes through the manifold to the engine where it is mixed with the oxygen, generating an internal combustion.

The more gasoline the motor requires, the longer the valves in the fuel injector will remain open. The length of a fuel injector runs between three to four inches and has a diameter of one to two inches. The national average cost for a Fuel Injector Replacement is between $231 and $342.

When replacing the fuel injector, it is recommended to use the Felpro lower intake manifold (LIM) gaskets that have a metal carrier. You can get a whole gasket set that includes everything for the intake plenum, too. It is also suggested to get new bolts for the intake manifold and a 1/4" torque wrench if you do not already have one.

The fuel injector is part of a spider injector assembly

The spider injector assembly is a central port fuel injection system, which means it delivers fuel to the engine through a central port. This assembly is completely remanufactured and tested to meet or exceed OEM specifications. It includes new Viton O-rings and a fuel pressure regulator.

When replacing a faulty fuel injector, it is important to consider the compatibility of the spider injector assembly with your vehicle's make, model, and engine specifications.

• Purchase the correct spider injector assembly for your vehicle. Ensure it is compatible with the year, make, model, and engine specifications of your Chevy Blazer.
• Crawl under the vehicle and disconnect the fuel pump to minimize the possibility of a fuel fire.
• Remove the bolts holding the fuel rail. It is important not to remove the fuel rail itself. Instead, raise it up slightly, just enough to access the fuel injector.
• Remove the old fuel injector from the rail.
• Lubricate the new injector seal with petroleum jelly and snap it into the fuel rail.
• Push the rail down to seat the injector into the intake.
• Bolt down the rail and replug the fuel pump.
• Turn the ignition key to the "run" position for 10 seconds, waiting 30 seconds between cycles, at least twice, to pressurize the rail.
• Check for any leaks before starting the engine.

It is important to note that this process may vary depending on your specific vehicle and the instructions provided with the spider injector assembly. Always refer to a qualified mechanic or repair manual for detailed instructions specific to your vehicle.

You may need to disconnect the fuel pump and remove bolts holding the fuel rail

To change a fuel injector on a 2000 Chevy Blazer, you may need to disconnect the fuel pump and remove the bolts holding the fuel rail. Here's a step-by-step guide to help you through the process:

• Crawl under the vehicle while it is running and disconnect the fuel pump. This step is crucial to minimise the possibility of a fuel fire.
• Remove the bolts holding the fuel rail in place. In most cases, these will be 13mm bolts. It is important to note that you should not remove the fuel rail itself.
• Raise the fuel rail just enough to access the injector. Typically, you will only need to lift it about one inch from the injector housing or hole.
• Remove the old injector from the fuel rail.
• Lubricate the new injector seal with petroleum jelly and snap it into the fuel rail.
• Push the rail down to seat the injector into the intake.
• Bolt down the rail and replug the fuel pump.
• Turn the ignition key to the "run" position for 10 seconds, waiting 30 seconds between cycles, at least twice. This will help pressurise the rail.
• Check for any leaks before starting the vehicle. Ensure you perform this step carefully to avoid any issues.
• If no leaks are detected, start the vehicle and check for leaks again. If everything looks good, re-torque the rail, and you're done!

By following these steps, you can safely and effectively change the fuel injector on your 2000 Chevy Blazer, ensuring a smooth and reliable performance from your vehicle.

You will need to lubricate the injector seal

When changing the fuel injector on a 2000 Chevy Blazer, you will need to lubricate the injector seal. To do this, you should use petroleum jelly, or a similar lubricant. Apply the lubricant liberally to the injector seal, then snap the seal back into the fuel rail. Push the rail down to seat the injector into the intake.

You will need to check for leaks

Once you have installed the new fuel injector, liberally lube the injector seal with petroleum jelly and snap it back into the fuel rail. Push the rail down to seat the injector into the intake and bolt down the rail. Re-plug the fuel pump and turn the ignition key to the 'run' position for 10 seconds (wait 30 seconds between cycles) at least twice. This will pressurise the rail.

Now, before you start the engine, check for any leaks. If there are no leaks, start the engine and check again. If there are still no leaks, re-torque the rail and you're good to go.

Frequently asked questions