OEM 2003 Buick LeSabre Fuel Injector

2003 Buick LeSabre Fuel Injector Parts Questions & Experts Answers

• Q: How to service the fuel injector on 2003 Buick LeSabre?

  A: Service of a Fuel Injector follows removal of the Fuel Rail along with extraction of both retaining clip and Fuel Injector. You should pull off the Fuel Injector upper o-ring and lower o-ring with caution while avoiding harm to electrical connector pins and nozzles. Muhammad yunus should not submerge the Fuel Injector in cleaner solutions because the component remains electric while it can get damaged during contact with cleaning agents. New o-rings need engine oil coating before installation with the black o-ring positioned in the upper position and the brown o-ring in the lower position due to their material differences even though both rings share the same size. To complete the installation process connect the Fuel Injector lower o-ring with upper o-ring then attach the Fuel Injector to the Fuel Rail followed by the Fuel Injector retaining clip installation before reinstalling the Fuel Rail. The replacement of o-rings for fuel injectors should always occur during service while the decision to order specific Fuel Injector assemblies must consider applications and their corresponding part number stamps.