Dakota 2WD V6-3.9L VIN X (1997)
Fuel Pressure Release: Service and Repair
With Pressure Test Port
WARNING: BECAUSE THE FUEL SYSTEM IS UNDER CONSTANT FUEL PRESSURE, IT MUST BE RELEASED BEFORE SERVICING
ANY FUEL SYSTEM COMPONENT THIS DOES NOT APPLY TO THROTTLE BODY REMOVAL.
NOTE: The fuel pressure test port is used on certain engines only. If equipped, the test port will be located on fuel rail. A sealing cap is screwed onto
test port.
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The fuel system is under constant fuel pressure (even with engine off).
1. Disconnect negative battery cable.
2. Remove fuel tank filler tube cap to release fuel tank pressure.
3. Remove protective cap from pressure test port on fuel rail. This is located on top of fuel rail.
WARNING: DO NOT ALLOW FUEL TO SPILL ONTO ENGINE INTAKE OR EXHAUST MANIFOLDS. PLACE SHOP TOWELS
UNDER AND AROUND PRESSURE PORT TO ABSORB FUEL WHEN PRESSURE IS RELEASED FROM FUEL RAIL.
WARNING: WEAR PROPER EYE PROTECTION WHEN RELEASING FUEL SYSTEM PRESSURE.
4. Obtain fuel pressure gauge/hose assembly from fuel pressure gauge tool set 5069. Remove gauge from hose.
5. Place one end of hose (gauge end) into an approved gasoline container.
6. Place a shop towel under test port.
7. To release fuel pressure, screw other end of hose onto fuel pressure test port.
8. After fuel pressure has been released, remove hose from test port.
9. Install protective cap to fuel test port.
