OEM Buick Rainier Fuel Injector

Buick Rainier Fuel Injector Parts and Q&A

• Injector
  19244623
  Q: How to replace a fuel injector on Buick Rainier?

  A:

  The first steps to replace a Fuel Injector are removing the Fuel Rail assembly while disconnecting the Fuel Injector harness connector from all fuel injectors. The procedure begins with carefully removing the retainer clip before extracting the Fuel Injector from the Fuel Rail assembly and discarding both the retainer clip as well as the injector o-ring seals (2, 4) from its ends. The correct Fuel Injector needs selection according to application since the Fuel Injector assembly bears a part number id and a four-digit code showing manufacturing month/day/year and shift. The new injector o-ring seals (2, 4) require oil lubrication before installation onto the injector followed by a new retainer clip placement. Insert the Fuel Injector through the rail injector socket from rear to front with the electrical connector protruding outside the socket while allowing the retaining clip to lock onto its flange.
• Injector
  17113698
  Q: How to clean fuel injectors effectively on Buick Rainier?

  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.