Section 03-04A: Fuel Charging and Controls—3.8L
1994 Mustang Workshop Manual
REMOVAL AND INSTALLATION

Fuel Injector

 

Removal

  1. Perform Steps 1 through 4 under Fuel Charging System, Pre-Service Procedures.
  1. Remove upper intake manifold (9424) as outlined in Section 03-01A.
  1. Remove fuel injection supply manifold (9F792) as outlined.
  1. Remove fuel injector retaining clips as required.
  1. Carefully remove fuel charging wire connectors from individual fuel injectors (9F593) as required.



  1. Grasping fuel injector body, pull up while gently rocking fuel injector from side-to-side.
  1. Inspect fuel injector O-rings (two per fuel injector ) for signs of deterioration. Replace as required.
  1. Inspect fuel injector body, end cap and washer for signs of dirt and deterioration.



 

Installation

NOTE: Never use silicone grease. Silicone grease will clog the fuel injectors .

  1. Lubricate O-rings with clean engine oil XO-10W30-QSP meeting Ford specification ESE-M2C153-E or equivalent and install two on each fuel injector .
  1. Install fuel injectors . Use a light, twisting pushing motion to install them.
  1. Reinstall fuel injector retaining clips as required.
  1. Install fuel injection supply manifold as outlined.
  1. Install fuel charging wiring connectors to fuel injectors .
  1. Install upper intake manifold as outlined in Section 03-01A. Perform Steps 1 through 6 of Fuel Charging System, Post-Service Procedures.