Initial Inspection and Diagnostic Overview

1. Visually inspect the components of the fuel delivery system.

^ Loose, leaking, or damaged fuel or vacuum lines

^ Leaking fuel injectors

^ Adverse driveability symptoms, such as rough idle, hard to start, misses, surges, hesitates, backfires

^ Insufficient fuel in fuel tank

^ Discharged battery

^ Damaged connectors

^ Damaged insulation

^ Damaged components in the fuel system

^ Blown fuse

^ Tripped inertia fuel shutoff switch

2. Exercise the wiring and connectors for the solenoids and other electrical components for obvious problems due to looseness, corrosion, or other damage.


3. If a component is suspected as the obvious cause of a malfunction, correct the cause before proceeding to the next step.


4. If all system inspection checks are OK, proceed to the Pinpoint Tests.

^ WARNING: FUEL IN THE FUEL SYSTEM REMAINS UNDER HIGH PRESSURE EVEN WHEN THE ENGINE IS NOT RUNNING. TO AVOID INJURY OR FIRE, RELEASE THE FUEL PRESSURE FROM THE FUEL SYSTEM BEFORE DISCONNECTING ANY FUEL LINE. TO RELEASE THE PRESSURE FROM THE SYSTEM PERFORM THE FOLLOWING:

a. Remove the 15A FUEL PUMP fuse. (The fuel pump fuse is located in the interior fuse panel).


b. Start the engine.


NOTE: If the engine does not start, crank it four or five times. GO to step d. If the engine starts, GO to step c.


c. After the engine stalls, crank the engine four or five times.


d. Turn off the ignition.


e. Install the fuel pump fuse.


f. Use a rag as protection from the fuel spray when disconnecting the hoses. Plug the hoses after disconnection.