Fuel System Pressure Release
WARNING:
Fuel system is under high pressure. ALWAYS release fuel pressure before attempting to open system for testing or component replacement. DO NOT allow fuel to flow onto engine or electrical parts while testing fuel system components.
NOTE:
When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.
- Remove fuel filler cap. Remove fuel pump relay from Integrated Power Module (IPM). IPM is located on left side of engine compartment, next to battery. See Figure and Figure
.NOTE: The Intelligent Power Module (IPM) may also be referred to as Integrated Power Module (IPM) or Power Distribution Center (PDC).
- Start and run engine until it stalls. Attempt to start engine. Continue restarting engine until it will no longer run. Turn ignition off.
- Reinstall fuel pump relay in IPM. One or more Diagnostic Trouble Codes (DTC) may set when fuel pump relay is removed. Erase any DTCs that may have set after fuel pressure release procedure. See CLEARING DIAGNOSTIC TROUBLE CODES .