OEM Chevrolet Colorado Fuel Pressure Regulator

Chevrolet Colorado Fuel Pressure Regulator Parts Questions & Experts Answers

• Fuel Pressure Regulator
  88984221
  Q: How to replace the fuel pressure regulator on Chevrolet Colorado?

  A: The replacement of the Fuel Pressure Regulator requires the system pressure to be reduced first. Begin the operation by eliminating connection between the fuel return hose/pipe and Fuel Rail while also uninstalling the atmospheric vent hose from the Fuel Pressure Regulator. Eliminate all debris from the Fuel Pressure Regulator along with its surrounding location before taking out screws (4, 5). Use tools to remove the Fuel Pressure Regulator along with its o-ring seal from the Fuel Rail by discarding the o-ring seal. After extracting the Fuel Rail return pipe together with its o-ring seal from the Fuel Pressure Regulator you should discard the o-ring seal. Check the regulator filter screen for contaminants before replacing the Fuel Pressure Regulator unit when contamination is detected. Place the new Fuel Pressure Regulator filter and apply a small amount of mineral oil gm p/n 9981704 to the o-ring seals (2, 7) before installation. You should place the new o-ring seals (2, 7) onto both the Fuel Pressure Regulator and the Fuel Rail return pipe. Follow the sequence of pressing the Fuel Rail return pipe along with its o-ring seal into the Fuel Pressure Regulator. Then use the same method to insert the Fuel Pressure Regulator with its o-ring seal into the Fuel Rail. Tighten the Fuel Pressure Regulator screws (4, 5) to 8 n.m (71 lb in). Tie one end of the atmospheric vent hose to the Fuel Pressure Regulator port while the other end leads to the Fuel Rail through the fuel return hose/pipe. Perform a leak inspection by starting the ignition for two seconds, waiting ten seconds before restarting the ignition for testing fuel leakages.