Symptom/Condition, Diagnosis & Parts Information

SYMPTOM/CONDITION

Engine performance is gradually reduced in high ambient temperature or high altitude driving due to a drop in fuel pressure, which starves the engine for fuel (goes lean). Engine may not start until fuel system components cool off.

DIAGNOSIS

The following are characteristics of vapor lock and should be observed on a fully warmed up engine. (Vapor lock does not affect cold engine driveability.)

^ Occurs after hot soak, prolonged idle, or highway speeds at any throttle opening.
^ Sag due to lean mixture.
^ No black smoke at tailpipe.
^ Fuel pressure drops to 0.
^ Carburetor air horn dry.
^ No accelerator pump discharge.
^ May not start until engine cools.
^ Engine may not sustain heavy loads.

PARTS REQUIRED

1 Fuel Tank & Bi-Metallic Fuel Gauge Package PN 4411991

ORDER THIS KIT TO BE USED WITH THE ABOVE KIT.

1 - Pressure Regulator & Fuel Reservoir Kit PN 4342937

Refer to parts list for contents of package.

To be ordered separately:

1 Body Overlay Harness (1981 MY only) PN 4368596
1 Body Overlay Harness (1982 MY only) PN 4368597
1 Authorized Modification Label PN 4275086