Engine - High Idle/Sticking Throttle

Article No.
01-21-5

10/29/01

^ IDLE - HIGH IDLE SPEEDS - THROTTLE STICKS
AFTER STEADY STATE DRIVING IN EXTREME
COLD AMBIENT TEMPERATURES - VEHICLES
BUILT THROUGH 11/01/01 EQUIPPED WITH 5.4L
ENGINE

^ ENGINE - 5.4L - PCV SYSTEM ICING - VEHICLES
BUILT THROUGH 11/01/01

FORD:
1997-1998 EXPEDITION, F-150, F-250 LD
2000-2002 EXPEDITION, F-150

LINCOLN:

1998 NAVIGATOR

This article is being republished in its entirety to update the Model Year and vehicle applications and the Service Kit part number.

ISSUE

In rare instances, throttle sticking may occur on a few vehicles in very cold ambient temperatures after operating at steady speed or extended idle for a period of time. This may be due to ice build-up from moisture in the PCV gas on the throttle plate or throttle body.

ACTION

Verify the condition is not caused by throttle body sludging, throttle cable binding, or interference between an improperly positioned floor mat and accelerator pedal. If no other conditions are identified, check for evidence of PCV system backflow. Refer to the following Service Procedure for details.

SERVICE PROCEDURE





Inspect the inside of the clean air tube at the PCV closure hose connection for presence of moisture, oil, or oily stains. If evidence of PCV system backflow is found, replace the PCV system with the revised PCV Service Kit, YL3Z-6A603-AA. Refer to the Instruction Sheet within the PCV Service Kit for Service Procedure.

NOTE
COMPRESSED NATURAL GAS UNITS ALSO REQUIRE F85Z-19C828-BA HOSE ASSEMBLY.





Parts Block

OTHER APPLICABLE ARTICLES: NONE

SUPERSEDES: 99-25-2

WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage And Emissions Warranty Coverage

OPERATION DESCRIPTION TIME

012105A Replace The PCV System 2.0 Hrs.
With The Revised PCV
Service Kit

DEALER CODING
CONDITION
BASIC PART NO. CODE
6C324 42

OASIS CODES: 401000, 607400, 607500, 607600, 607700, 608400, 608500, 608600, 609400, 609500, 609600, 610500, 610600, 610700, 611000, 611500, 612000, 612500, 612600, 614500, 614600, 617400, 619400