Engine - Long Crank/Hesitation/No Start/Stall When Cold
Article No.95-20-8
10/11/95
^ HESITATION - AFTER COLD START DURING FIRST MILE (1.6 KM) OF DRIVING IN TEMPERATURES AT OR BELOW 35 DEGREES F (2 DEGREES C) - 1993 VEHICLES BUILT AFTER 4/1/93 AND ALL 1994 VEHICLES - 3.0L VEHICLES WITH MANUAL TRANSMISSION ONLY
^ LONG CRANK/HARD START AFTER STALL - AFTER COLD START DURING FIRST MILE (1.6 KM) OF DRIVING IN TEMPERATURES AT OR BELOW 35 DEGREES F (2 DEGREES C) - 1993 VEHICLES BUILT AFTER 4/1/93 AND ALL 1994 VEHICLES - 3.0L - MANUAL TRANSMISSION VEHICLES
^ NO START AFTER STALL - AFTER COLD START DURING FIRST MILE (1.6 KM) OF DRIVING IN TEMPERATURES AT OR BELOW 35 DEGREES F (2 DEGREES C) - 1993 VEHICLES BUILT AFTER 4/1/93 AND ALL 1994 VEHICLES - 3.0L VEHICLES WITH MANUAL TRANSMISSION ONLY
^ STALL - AFTER COLD START DURING FIRST MILE (1.6 KM) OF DRIVING IN TEMPERATURES AT OR BELOW 35 DEGREES F (2 DEGREES C) - 1993 VEHICLES BUILT AFTER 4/1/93 AND ALL 1994 VEHICLES - 3.0L VEHICLES WITH MANUAL TRANSMISSION ONLY
LIGHT TRUCK:
1993-94 RANGER
CALIBRATION:
3-55F-R10, 3-55H-R10, 4-55F-R10, 4-55H-R10
WARNING:
THIS MODIFICATION IS AUTHORIZED ONLY FOR THE LISTED ENGINE. PERFORMING THIS MODIFICATION ON OTHER ENGINE CALIBRATIONS IS UNAUTHORIZED AND COULD CREATE LIABILITY UNDER APPLICABLE FEDERAL OR LOCAL LAWS.
ISSUE:
A noticeable hesitation may occur during acceleration in the first mile (1.6 km) of driving after an initial cold start in ambient temperatures of 35°F (2°C) and below. A long crank may be required to restart the engine. A no start condition may require fuel unloading as described in the appropriate year Ranger Owner Guide under a "No Start" flooded condition. These conditions may be caused by the Powertrain Control Module (PCM) calibration.
ACTION:
Refer to the following Service Procedure to determine if a new PCM with a revised calibration is required.
SERVICE PROCEDURE
1. Perform the diagnostic procedure in the 1993-94 Powertrain Control/Emissions Diagnosis (PC/ED) Car/Truck Service Manual. Service as required.
2. If the concern still exists, install a new PCM with a revised fuel calibration. Refer to the Application Chart for correct part usage.
Obtain an Authorized Modifications Decal and list the date, dealer number, and summary of modifications performed. Select a prominent place adjacent to the Vehicle Emission Control Information Decal suitable for installing the Authorized Modifications Decal. Clean the area, install the decal, and cover it with a clear plastic decal shield.
PART NUMBER PART NAME
F4PZ-12A650-VA Powertrain Control Module (PCM)
F4PZ-12A650-WA Powertrain Control Module (PCM)
OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage And Emissions Warranty Coverage
OPERATION DESCRIPTION TIME
952008A Replace Powertrain Control 0.3 Hr
Module (PCM)
DEALER CODING
CONDITION
BASIC PART NO. CODE
RECAL 08
OASIS CODES: 602300, 603300, 607000, 607400, 607500, 607600, 607700, 611000, 611500