OEM 2004 Chevrolet Trailblazer Fuel Injector

2004 Chevrolet Trailblazer Parts Questions & Experts Answers

• Q: How to clean fuel injectors effectively on 2004 Chevrolet Trailblazer?

  A: Clean your fuel injectors with the following tools: fuel line shut-off adapters (J 37287) and two types of each adapter form fuel line shut-off adapters (J 38500-A) including 3/8 fuel line shut-off adapter (J 42873-1) and 5/16 fuel line shut-off adapter (J 42873-2) as well as the 3/8 fuel pipe shut-off valve (J 42964-1) and 5/16 fuel pipe shut-off valve (J 42964-2). The exclusive gm top-engine cleaner should never be added to the fuel tank while operating at a maximum solution strength of 10 percent, whenever possible. The required cleaning solution takes two tanks of the j 38500-a to reach the total amount of 960 milliliters (32.4 ounces). Us dealers require two 24 ml (0.812 oz) gm top-engine cleaner (P/N 12346535) containers to be added to the j 38500-a cleaning device while canadian dealers need to use top-engine cleaner with canadian p/n 992872 in the amount of 48 ml (1.62 oz). The mixing ratio for top-engine cleaner requires 3.24 oz of cleaning solution combined with 29.16 oz of unleaded gasoline when using different brands than gm. Begin by filling the tank with cleaning solution and then disable the vehicle Fuel Pump before disconnecting the fuel lines and plugging their ends with suitable adapters. Run the j 38500-a at 510 kpa (75 psi) pressure to pressurize it before starting the engine until complete stall is achieved. After removing the j 38500-a you need to restore the Fuel Pump relay and lines then let the vehicle idle for a further two minutes. Test the injector balances to measure fuel pressure drops from each component followed by replacing the injector that shows the minimum pressure below 15 kpa (2 psi). The customer should use a combination of one ounce of gm port Fuel Injector cleaner (GM P/N 12345104 or Canadian P/N 10953467) that is equal to each gallon of gasoline along with a recommendation to dispense the rest at the following tank fill-up and ongoing use of gm port Fuel Injector cleaner to stop future issues. Drive the car to test if a repaired issue fulfills the customer's requirements.