Ranger 4WD V6-182 3.0L (1994)
Powertrain Control Module: Customer Interest
Engine - Long Crank/Hesitation/No Start/Stall When Cold
Article No.
95-20-8
10/11/95
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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
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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
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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
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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.
