Dodge Durango: Quick-connect fittings - Service procedures - Fuel delivery system (2024)

Also refer to Fuel Tubes/Lines/Hoses and Clamps.

Different types of quick-connect fittings are used toattach various fuel system components, lines andtubes. These are: a single-tab type, a two-tab type ora plastic retainer ring type. Safety latch clips areused on certain components/lines. Certain fittingsmay require use of a special tool for disconnection.

DISCONNECTING

WARNING: THE FUEL SYSTEM IS UNDER A CONSTANTPRESSURE (EVEN WITH ENGINE OFF).

BEFORE SERVICING ANY FUEL SYSTEM HOSE,FITTING OR LINE, FUEL SYSTEM PRESSURE MUSTBE RELEASED. REFER TO FUEL SYSTEM PRESSURERELEASE PROCEDURE.

CAUTION: The interior components (o-rings, spacers)of some types of quick-connect fitting are notserviced separately. If service parts are not available,do not attempt to repair a damaged fitting or fuel line. If repair is necessary, replace completefuel line assembly.

(1) Perform fuel pressure release procedure. Referto Fuel Pressure Release Procedure in this group.

(2) Disconnect negative battery cable from battery.

(3) Clean fitting of any foreign material before disassembly.

(4) Single-Tab Type Fitting: This type of fittingis equipped with a single pull tab (Fig. 13). The tabis removable. After tab is removed, quick-connect fittingcan be separated from fuel system component.

(a) Press release tab on side of fitting to releasepull tab (Fig. 14). If release tab is not pressedprior to releasing pull tab, pull tab will bedamaged.

(b) While pressing release tab on side of fitting,use screwdriver to pry up pull tab (Fig. 14).

(c) Raise pull tab until it separates from quickconnectfitting (Fig. 15).

(5) Two-Tab Type Fitting: This type of fitting isequipped with tabs located on both sides of fitting(Fig. 16). The tabs are supplied for disconnectingquick-connect fitting from component being serviced.

Fig. 13 Single-Tab Type Fitting

1 - PULL TAB

2 - QUICK-CONNECT FITTING

3 - PRESS HERE TO REMOVE PULL TAB

4 - INSERTED TUBE END

(a) To disconnect quick-connect fitting, squeezeplastic retainer tabs (Fig. 16) against sides ofquick-connect fitting with your fingers. Tool use isnot required for removal and may damage plasticretainer.

(b) Pull fitting from fuel system componentbeing serviced.

(c) The plastic retainer will remain on componentbeing serviced after fitting is disconnected.

Fig. 14 Disconnecting Single-Tab Type Fitting

1 - PULL TAB

2 - SCREWDRIVER

3 - QUICK-CONNECT FITTING

Fig. 15 Removing Pull Tab

1 - FUEL TUBE OR FUEL SYSTEM COMPONENT

2 - PULL TAB

3 - QUICK-CONNECT FITTING

4 - FUEL TUBE STOP

The o-rings and spacer will remain in quick-connectfitting connector body.

(6) Plastic Retainer Ring Type Fitting: Thistype of fitting can be identified by the use of a fullroundplastic retainer ring (Fig. 17) usually black incolor.

(a) To release fuel system component from quickconnectfitting, firmly push fitting towards componentbeing serviced while firmly pushing plasticretainer ring into fitting (Fig. 17). With plastic ringdepressed, pull fitting from component. The plasticretainer ring must be pressed squarelyinto fitting body. If this retainer is co*ckedduring removal, it may be difficult to disconnectfitting. Use an open-end wrench onshoulder of plastic retainer ring to aid in disconnection.

Fig. 16 Typical Two-Tab Type Quick-Connect Fitting

1 - TAB(S)

2 - QUICK-CONNECT FITTING

Fig. 17 Plastic Retainer Ring Type Fitting

1 - FUEL TUBE

2 - QUICK CONNECT FITTING

3 - PUSH

4 - PLASTIC RETAINER

5 - PUSH

6 - PUSH

7 - PUSH

8 - PUSH

Fig. 18 Latch Clip-Type 1

1 - TETHER STRAP

2 - FUEL LINE

3 - SCREWDRIVER

4 - LATCH CLIP

5 - FUEL RAIL

Fig. 19 Latch Clip-Type 2

(b) After disconnection, plastic retainer ring willremain with quick-connect fitting connector body.

(c) Inspect fitting connector body, plastic retainerring and fuel system component for damage.

Replace as necessary.

(7) Latch Clips: Depending on vehicle model andengine, 2 different types of safety latch clips are used(Fig. 18) or (Fig. 19). Type-1 is tethered to fuel lineand type-2 is not. A special tool will be necessary to disconnect fuel line after latch clip is removed. Thelatch clip may be used on certain fuel line/fuel railconnection, or to join fuel lines together.

(a) Type 1: Pry up on latch clip with a screwdriver(Fig. 18).

(b) Type 2: Separate and unlatch 2 small armson end of clip (Fig. 19) and swing away from fuelline.

(c) Slide latch clip toward fuel rail while liftingwith screwdriver.

(d) Insert special fuel line removal tool (Snap-Onnumber FIH 9055-1 or equivalent) into fuel line(Fig. 20). Use tool to release locking fingers in endof line.

(e) With special tool still inserted, pull fuel linefrom fuel rail.

(f) After disconnection, locking fingers willremain within quick-connect fitting at end of fuelline.

(8) Disconnect quick-connect fitting from fuel systemcomponent being serviced.

Fig. 20 Fuel Line Disconnection Using Special Tool

1 - SPECIAL FUEL LINE TOOL

2 - FUEL LINE

3 - FUEL RAIL

CONNECTING

(1) Inspect quick-connect fitting body and fuel systemcomponent for damage. Replace as necessary.

(2) Prior to connecting quick-connect fitting tocomponent being serviced, check condition of fittingand component. Clean parts with a lint-free cloth.

Lubricate with clean engine oil.

(3) Insert quick-connect fitting into fuel tube orfuel system component until built-on stop on fueltube or component rests against back of fitting.

(4) Continue pushing until a click is felt.

(5) Single-tab type fitting: Push new tab downuntil it locks into place in quick-connect fitting.

(6) Verify a locked condition by firmly pulling onfuel tube and fitting (15-30 lbs.).

(7) Latch Clip Equipped: Install latch clip (snapsinto position). If latch clip will not fit, this indicatesfuel line is not properly installed to fuelrail (or other fuel line). Recheck fuel line connection.

(8) Connect negative cable to battery.

(9) Start engine and check for leaks.

More about «Service procedures»:

Fuel system pressure release procedure

Quick-connect fittings