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Discussion Starter #1
Hey so I recently been trying to figure out where is cylinder four fuel injector on a 2008 dodge avenger 6 cylinder 2.7. Can anyone help me out with this?
 

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This is the firing order for the 2.7:
19384

Front of vehicle also indicates front of engine.


So the injector will be above cylinder 6 on the fuel rail:

2.7L


FUEL RAIL REMOVEL/INSTALL

FUEL RAIL REMOVEL/INSTALL


  1. Release fuel system pressure. Refer to Fuel System Pressure Release Procedure in this group.
  2. Disconnect negative cable to battery.
  3. Remove intake manifold.
  4. Cover intake manifold to prevent foreign material from entering engine.
  5. Disconnect fuel supply tube quick connect fittings at the rear of intake manifold. Refer to Quick Connect Fittings in the Fuel Delivery Section.
  6. If the injector connectors are not tagged with their cylinder number, tag them to identify the correct cylinder
  7. Remove electrical connectors from the fuel injectors.
  8. Remove fuel rail mounting bolts.
  9. Lift fuel rail straight up off of the cylinder head.


FUEL INJECTOR AND RAIL

FUEL INJECTOR AND RAIL


  1. Remove retaining clips from fuel injectors at fuel rail.
  2. Remove fuel injectors.
  3. Repeat for remaining injectors.
  4. Check injector O-ring for damage. If O-ring is damaged, it must be replaced. Replace the injector clip if it is damaged.
 

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Discussion Starter #3
This is the firing order for the 2.7:
View attachment 19384
Front of vehicle also indicates front of engine.


So the injector will be above cylinder 6 on the fuel rail:

2.7L



FUEL RAIL REMOVEL/INSTALL
FUEL RAIL REMOVEL/INSTALL


  1. Release fuel system pressure. Refer to Fuel System Pressure Release Procedure in this group.
  2. Disconnect negative cable to battery.
  3. Remove intake manifold.
  4. Cover intake manifold to prevent foreign material from entering engine.
  5. Disconnect fuel supply tube quick connect fittings at the rear of intake manifold. Refer to Quick Connect Fittings in the Fuel Delivery Section.
  6. If the injector connectors are not tagged with their cylinder number, tag them to identify the correct cylinder
  7. Remove electrical connectors from the fuel injectors.
  8. Remove fuel rail mounting bolts.
  9. Lift fuel rail straight up off of the cylinder head.



FUEL INJECTOR AND RAIL
FUEL INJECTOR AND RAIL


  1. Remove retaining clips from fuel injectors at fuel rail.
  2. Remove fuel injectors.
  3. Repeat for remaining injectors.
  4. Check injector O-ring for damage. If O-ring is damaged, it must be replaced. Replace the injector clip if it is damaged.
Ok, I'll give this a go....Thanks!!!
 

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No problem, best of luck!
 

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Yes, they recommend it. Just disconnect at the jump post. You don't have to go down to the battery.
 

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Discussion Starter #7
Do I necessarily have to disconnect the negative battery cable?
Better question since Im new to this,
Yes, they recommend it. Just disconnect at the jump post. You don't have to go down to the battery.
ok last question I hope lol, so when I was trying to disconnect the fuel rail from the actual fuel line I guess... fuel started coming out. I know you said earlier about disconnecting the fuel supply tube,basically Im having a hard time trying to find it
 

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  1. Perform fuel pressure release procedure.
  2. Disconnect negative battery cable from battery.
  3. Clean fitting of any foreign material before disassembly.


SINGLE BUTTON FITTING

SINGLE BUTTON FITTING

  1. Single–Button Type Fitting: This type of fitting is equipped with a single push-button (2) located on the quick-connect fitting.


FITTING LATCHES

FITTING LATCHES

  1. The push-button is attached to two internal latches (1). To disconnect, press on push-button with your thumb and unlatch fitting from fuel line. Special tools are not required for disconnection. DO NOT ATTEMPT TO PRY OR PULL UP ON PUSH-BUTTON. LATCHES WILL BE BROKEN.


2-BUTTON TYPE FITTING

2-BUTTON TYPE FITTING

  1. Perform fuel pressure release procedure. Refer to Fuel Pressure Release Procedure.
  2. Disconnect negative battery cable from battery.
  3. Clean fitting of any foreign material before disassembly.
  4. 2–Button Type Fitting: This type of fitting (1) is equipped with a push-button located on each side of quick-connect fitting (2). Press on both buttons simultaneously for removal. Special tools are not required for disconnection.


PINCH TYPE QUICK-CONNECT FITTING

  1. Pinch-Type Fitting: This fitting (1) is equipped with two finger tabs (2). Pinch both tabs together while removing fitting. Special tools are not required for disconnection.


Single-Tab Type Fitting

  1. Single-Tab Type Fitting: This type of fitting (3) is equipped with a single pull tab (1). The tab is removable. After tab is removed, quick-connect fitting can be separated from fuel system component. Special tools are not required for disconnection.


[IMG alt="Disconnecting Single-Tab
Type Fitting"]https://www.chiltonlibrary.com/content/images/Chrysler/2008JS/46664.gif[/IMG]
Disconnecting Single-Tab Type Fitting

  1. Press release tab on side of fitting to release pull tab (1). If release tab is not pressed prior to releasing pull tab, pull tab will be damaged.
  2. While pressing release tab on side of fitting, use screwdriver (2) to pry up pull tab.
  3. Raise pull tab until it separates from quick-connect fitting.


[IMG alt="Typical Two-Tab
Type Quick-Connect Fitting"]https://www.chiltonlibrary.com/content/images/Chrysler/2008JS/46666.gif[/IMG]
Typical Two-Tab Type Quick-Connect Fitting

  1. Two-Tab Type Fitting: This type of fitting (2) is equipped with tabs located on both sides of fitting (1). The tabs are supplied for disconnecting quick-connect fitting from component being serviced.
    • To disconnect quick-connect fitting, squeeze plastic retainer tabs (1) against sides of quick-connect fitting with your fingers. Tool use is not required for removal and may damage plastic retainer.
    • Pull fitting from fuel system component being serviced.
    • The plastic retainer will remain on component being serviced after fitting is disconnected. The O-rings and spacer will remain in quick-connect fitting connector body.


Plastic Retainer Ring Type Fitting

  1. Plastic Retainer Ring Type Fitting: This type of fitting can be identified by the use of a full-round plastic retainer ring (4) usually black in color.
    • To release fuel system component from quick-connect fitting, firmly push fitting towards component being serviced while firmly pushing plastic retainer ring into fitting (6). With plastic ring depressed, pull fitting from component. The plastic retainer ring must be pressed squarely into fitting body. If this retainer is cocked during removal, it may be difficult to disconnect fitting. Use an open-end wrench on shoulder of plastic retainer ring to aid in disconnection.
    • After disconnection, plastic retainer ring will remain with quick-connect fitting connector body.
    • Inspect fitting connector body, plastic retainer ring and fuel system component for damage. Replace as necessary.


Latch Clip”?Type 1

  1. Latch Clips Type 1: Depending on vehicle model and engine, 2 different types of safety latch clips are used. Type-1 (4) is tethered to fuel line and type-2 is not. A special tool will be necessary to disconnect fuel line after latch clip is removed. The latch clip may be used on certain fuel line/fuel rail connection, or to join fuel lines together.
  2. Pry up on latch clip with a screwdriver (3).
  3. Slide latch clip toward fuel rail while lifting with screwdriver.


[IMG alt="Fuel Line Disconnection
Using Special Tool"]https://www.chiltonlibrary.com/content/images/Chrysler/2008JS/46672.gif[/IMG]
Fuel Line Disconnection Using Special Tool

  1. Insert special fuel line removal tool (Snap-On number FIH 9055-1 or equivalent) into fuel line (1). Use tool to release locking fingers in end of line.
  2. With special tool still inserted, pull fuel line from fuel rail.
  3. After disconnection, locking fingers will remain within quick-connect fitting at end of fuel line.
  4. Disconnect quick-connect fitting from fuel system component being serviced.


Latch Clip”?Type 2

  1. Latch Clips Type 2: Depending on vehicle model and engine, 2 different types of safety latch clips are used. Type-1 is tethered to fuel line and type-2 is not. A special tool will be necessary to disconnect fuel line after latch clip is removed. The latch clip may be used on certain fuel line/fuel rail connection, or to join fuel lines together.
  2. Type 2: Separate and unlatch small arms on end of clip and swing away from fuel line.
  3. Slide latch clip toward fuel rail while lifting with screwdriver.


[IMG alt="Fuel Line Disconnection
Using Special Tool"]https://www.chiltonlibrary.com/content/images/Chrysler/2008JS/46672.gif[/IMG]
Fuel Line Disconnection Using Special Tool

  1. Insert special fuel line removal tool (Snap-On number FIH 9055-1 or equivalent) into fuel line (1). Use tool to release locking fingers in end of line.
  2. With special tool still inserted, pull fuel line from fuel rail.
  3. After disconnection, locking fingers will remain within quick-connect fitting at end of fuel line.
  4. Disconnect quick-connect fitting from fuel system component being serviced.


EVAP CAN. VAPOR HOSE

  1. Wing Type: A special tool is not necessary to disconnect this type of fitting (2). This line is used on different fuel and emission components. The graphic shows the fitting used on an EVAP canister.
  2. Use two fingers to push on fitting wings (2)
  3. Pull and disconnect fitting while holding wings.
  4. After disconnection, locking fingers will remain within quick-connect fitting.

CONNECTING

  1. Inspect quick-connect fitting body and fuel system component for damage. Replace as necessary.
  2. Prior to connecting quick-connect fitting to component being serviced, check condition of fitting and component. Clean parts with a lint-free cloth. Lubricate with clean engine oil.
  3. Insert quick-connect fitting into fuel tube or fuel system component until built-on stop on fuel tube or component rests against back of fitting.
  4. Continue pushing until a click is felt.
  5. Single-tab type fitting: Push new tab down until it locks into place in quick-connect fitting.
  6. Verify a locked condition by firmly pulling on fuel tube and fitting (15-30 lbs.).
  7. Latch Clip Equipped: Install latch clip (snaps into position). If latch clip will not fit, this indicates fuel line is not properly installed to fuel rail (or other fuel line). Recheck fuel line connection.
  8. Connect negative cable to battery.
  9. Start engine and check for leaks.
 

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Discussion Starter #9
OK, is there a fuse for the fuel? so it wont spill when i disconnect the fuel line from the fuel rail. That's the problem i was having yesterday
 

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FUEL SYSTEM PRESSURE RELEASE PROCEDURE


WARNING
The fuel system is under constant pressure even with engine off. Until the fuel pressure has been properly relieved from the system, do not attempt to open the fuel system. Do not smoke or use open flames/sparks when servicing the fuel system. Wear protective clothing and eye protection. Make sure the area in which the vehicle is being serviced is in a well ventilated area.



A separate fuel pump relay is no longer used. A circuit within the Totally Integrated Power Module (TIPM) is used to control the electric fuel pump located within the fuel pump module.

  1. Remove fuel fill cap.
  2. Remove lower rear seat cushion.




  1. Remove the fuel pump module cover (1).


FUEL PUMP MODULE CONNECTION

FUEL PUMP MODULE CONNECTION

  1. Disconnect electrical connector (2) form fuel pump module (1).
  2. Start and run engine until it stalls.
  3. Attempt to restarting engine a few times until the engine will no longer start.
  4. Turn ignition key to OFF position.
  5. Disconnect negative battery cable.
  6. Place a shop towel below and disconnect the fuel line quick-connect fitting (3) at fuel pump module (1).



NOTE
After servicing the fuel system, one or more Diagnostic Trouble Codes (DTC's) may have been stored in Powertrain Control Module (PCM) memory due to disconnecting fuel pump module circuit. A diagnostic scan tool must be used to erase a DTC.
 

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Discussion Starter #11
Ok i did everything right and replaced the fuel injector, but how long will it take before i can know a difference .
 
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