|
|
6E2–82 6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS Fuel System Diagnosis (Cont'd) Step No Yes Value(s) Action 10 Locate and repair the loss of vacuum to the fuel Is the action complete? — Verify repair — 11 Replace the fuel pressure regulator. Is the action complete? — Verify repair — 12 1. Run the fuel pump with the Tech 2. clamp the supply hose shut with suitable locking Does the fuel pressure indicated by the fuel pressure — Go to Step 13 Go to Step 15 13 Visually inspect the fuel supply line and repair any Was a problem found? — Verify repair Go to Step 14 14 Remove the fuel tank and inspect for leaky hose or Was a problem found? — Verify repair Go to Step 8 15 1. If the pliers are still clamped to the fuel supply hose, remove the locking pliers. 2. With suitable locking pliers which will not damage the hose, clamp the fuel return line to prevent fuel 3. Run the fuel pump with the Tech 2. pump. Does the fuel pressure indicated by the fuel pressure — Go to Step 11 Go to Step 16 16 Locate and replace any leaking fuel injector(s). Is the action complete? — Verify repair — 17 Is the fuel pressure indicated by the fuel pressure 376 kPa (55 psi) Go to Step 18 Go to Step 21 18 1. Relieve the fuel pressure. Refer to the Fuel Pressure Relief. 2. Disconnect the fuel return line from the fuel rail. outlet passage. 4. Place the open end of the flexible hose into an approved gasoline container. 5. Run the fuel pump with the Tech 2. pressure gauge with the fuel pump running. Is the fuel pressure within the specified limits? 290-376 kPa (42-55 psi) Go to Step 19 Go to Step 20 19 Locate and correct the restriction in the fuel return line. Is the action complete? — Verify repair — 20 Visually and physically inspect the fuel rail outlet Was a restriction found? — Verify repair Go to Step 11 |