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Home >> Jeep >> 1995 >> Grand Cherokee Laredo, 5.2 Y, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 5.2L >> Fuel Pressure Release

Fuel Pressure Release

CAUTION: ALWAYS relieve pressure before disconnecting any fuel injection-related components. DO NOT  allow fuel to contact engine or electrical components.
  1. Turn ignition off. Disconnect negative battery cable. Slowly open fuel tank cap to release pressure in tank. Remove fuel rail pressure test port cap. Obtain fuel pressure gauge/hose assembly from Fuel Pressure Gauge Set (5069).
  2. Place open end of fuel pressure gauge/hose assembly in an approved gasoline container. Connect other end of pressure gauge/hose assembly to test port. As fuel pressure gauge/hose is tightened onto fuel rail pressure test port, fuel pressure will bleed-off into container.
WARNING: Always relieve fuel pressure before disconnecting any fuel injection-related component. DO NOT  allow fuel to contact engine or electrical components.
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