OEM 2004 Buick LeSabre Fuel Injector

2004 Buick LeSabre Fuel Injector Parts and Q&A

• Q: How to clean fuel injectors on 2004 Buick LeSabre?

  A: The tools required to cleanse fuel injectors include the Fuel Line Shut-Off Adapters (J 37287) and Fuel Injector Cleaner (J 38500-A) and 3/8 Inch and 5/16 Inch Fuel Line Shut-Off Adapters (J42873-1 and J42873-2 and J42964-1 and J42964-2). The recommended cleaner for fuel injectors is GM Top-Engine Cleaner (GM P/N 12346535 for US dealers or Canadian P/N 992872 for Canadian dealers). Apply this solution without adding it to the fuel tank and maintain the solution strength below 10 percent. Use the injector cleaning tank to combine regular unleaded gasoline with 960 mL (32.4 oz) cleaning solution for the procedure. Follow these steps to disconnect the fuel pump by plugging the fuel rail lines with correct shut-off adapters. The Fuel Injector Cleaner (J 38500-A) should be connected to the fuel rail before the system receives pressure to 510 kPa (75 psi) and the engine should continue operating until it quits. To complete this procedure reconnect the fuel lines then let the engine run for two further minutes until idle. To identify and replace the injector with the lowest pressure drop the technician must perform the balance test on all injectors. Each gallon of gasoline should receive a one-ounce addition of Port Fuel Injector Cleaner GM P/N 12345104 or Canadian P/N 10953467 into the fuel tank with instructions for the customer to employ GM Port Fuel Injector Cleaner at regular intervals to avoid future issues. Driving the car will demonstrate that the repair addressed the customer-described problem.