Section 03-04A: Fuel Charging and Controls—2.3L
1993 Mustang Workshop Manual
REMOVAL AND INSTALLATION

Pressure Relief Valve

Tools Required:

 

Removal

NOTE: The cap on the relief valve must be removed.

  1. If the fuel charging assembly is mounted to the engine, remove fuel tank cap, then release pressure from the system by opening the pressure relief valve on the fuel injection supply manifold assembly in the upper RH corner of the engine compartment. Use MFI Pressure Gauge T80L-9974-B.
  1. Using an open-end wrench, remove pressure relief valve.
 

Installation

Install pressure relief valve and cap. Tighten valve to 5.5-9.5 Nm (48-84 lb-in). Tighten cap to 0.5-0.7 Nm (4-6 lb-in).