Bronco II 2WD V6-177 2.9L (1986)
Engine Control Module: Customer Interest
Engine - No Start/Slow Start In Low Ambient Temperatures
Article No.
^ NO START - 2.9L EFI - IN LOW AMBIENT
87-17-15
TEMPERATURES
^
SLOW START - 2.9L EFI - IN LOW AMBIENT TEMPERATURES
LIGHT TRUCK:
1986 RANGER, BRONCO II
ISSUE:
Slow start and/or no start conditions in low ambient temperatures of 10~F/-6~C or below may be caused by an overrich EEC IV processor
calibration and an incorrect throttle plate setting.
ACTION:
To correct this, reset throttle plate and install a new EEC IV processor to correct the overrich condition. Refer to the following service
diagnostic procedure.
1.
Check closed throttle plate setting. Throttle plate setting (TRC) should allow engine to idle at 750 RPM with ISC motor
disconnected. If setting is incorrect, adjust to correct setting. Refer to the 1986 Ranger/Bronco II Shop Manual, Section 24-03.
NOTE:
Before adjustments, apply Ford Threadlocker #242 (E0AZ-19554-A) to TRC screw and throttle body casting. Due to
the fast curing rate (20 minutes), adjustment should be made immediately.
2.
Remove existing EEC IV processor and replace with new EEC IV processor, Refer to the following application chart.
EEC IV PROCESSOR APPLICATION CHART
Existing EEC IV Processor
Replace with New Level
Engineering Part Number
EEC IV Processor
E6TF-12A650-EA
E6PZ-12A650-AA
E6TF-12A650-PA
E6PZ-12A650-CA
E6TF-12A650-FA
E6PZ-12A650-BA
E6TF-12A650-LC
E6PZ-12A650-EA
E6TF-12A650-CD
E6PZ-12A650-DA
E6TF-12A650-MC
E6PZ-12A650-FA
PART NUMBER
PART NAME
CLASS
E6PZ-12A650-AA
EEC IV Processor
B
E6PZ-12A650-BA
EEC IV Processor
B
E6PZ-12A650-CA
EEC IV Processor
B
E6PZ-12A650-DA
EEC IV Processor
B
E6PZ-12A650-EA
EEC IV Processor
B
E6PZ-12A650-FA
EEC IV Processor
B
E0AZ-19554-A
Ford Thread locker
AG
OTHER APPLICABLE ARTICLES: 87-16-19
WARRANTY STATUS: Eligible under Basic Warranty Coverage
OPERATION: SP871715A
TIME:
0.9 Hr. DLR. CODING: Basic Part No. DRIVE - Code: J3
