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Home >> Jeep >> 2021 >> Grand Cherokee Trackhawk >> Repair and Diagnosis >> Engine Mechanical >> Fuel System >> Fuel Injection, Diesel >> Injector(S), Fuel >> Installation >> Left Bank
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Left Bank

WARNING:

No sparks, open flames or smoking. Risk of poisoning from inhaling and swallowing fuel. Risk of injury to eyes and skin from contact with fuel. Pour fuels only into suitable and appropriately marked containers. Wear protective clothing.

NOTE:

Check the tip of the injector, if it is found to be loose then replace it with a NEW  one.

NOTE:

Any time a new injector is installed, or if an existing injector is installed in any location other than its original location, the injector quantity adjustment procedure must be performed. Refer to FUEL INJECTION, DIESEL, STANDARD PROCEDURE .

GC0146597Courtesy of CHRYSLER GROUP, LLC
  1. Remove protective cap from the appropriate injector bore.
    NOTE:

    Make sure the old copper sealing washer is not stuck in bore.

  2. Clean the injectors and the injector bore. Refer to INJECTOR(S), FUEL, CLEANING .
  3. Install a NEW  fuel injector seal (1) in the cylinder head cover (2).
    GC0146596Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    Do Not apply any lubricant to the fuel injector nozzle. Care must be taken not to restrict the discharge orifices in the nozzle.

  4. Install a NEW  sealing washer (2) onto the fuel injector (1).
    GC0146595Courtesy of CHRYSLER GROUP, LLC
  5. Lubricate the injector body with Nickel Anti-Seize Lubricant.
  6. Install the fuel injector (1), tensioning claws (4), washer (3) and bolt (2). Tighten the bolt (2) to 33 N.m (24 ft. lbs.).
    NOTE:

    Fuel tubes are a one time only use and must be replaced anytime they have been removed.

  7. Install the NEW  high pressure fuel tubes. Refer to TUBE(S), FUEL, INSTALLATION .
    GC0146594Courtesy of CHRYSLER GROUP, LLC
  8. Connect the fuel injector harness connector (1).
    NOTE:

    Do not use any type of lubrication when installing the fuel injector return line.

    NOTE:

    BE SURE THE FUEL INJECTOR RETURN LINE LOCK TAB (2) IS IN THE UNLOCKED POSITION. 

  9. Install the fuel injector return line (3) and BE SURE IT IS FULLY SEATED  , then push down on the lock tab (2) to lock in place.
    GC0152124Courtesy of CHRYSLER GROUP, LLC
  10. Install the fuel injector silencer (1).
  11. Install the Charge Air Cooler (CAC) tube.
    GC0145586Courtesy of CHRYSLER GROUP, LLC
  12. Install the cowl extension (1) and the side extensions (2, 5). Refer to SILENCER, COWL EXTENSION, INSTALLATION .
  13. Connect the negative battery cable.
    WARNING:

    High-pressure lines deliver diesel fuel under extreme pressure from the injection pump to the fuel injectors. This may be as high as 2000 bar (29, 008 psi). Use extreme caution when inspecting for high-pressure fuel leaks. Fuel under this amount of pressure can penetrate skin causing personal injury or death. Inspect for high-pressure fuel leaks with a sheet of cardboard. Wear safety goggles and adequate protective clothing when servicing fuel system.

  14. Start the engine and inspect for leaks.
    GC0174046Courtesy of CHRYSLER GROUP, LLC
  15. Install the engine cover (1).
    NOTE:

    When ever a fuel injector is replaced run oxygen sensor value reset function.

  16. Using the scan tool, perform Oxygen Sensor Value Reset  function found under ENGINE MISCELLANEOUS FUNCTIONS.
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