Lincoln Corsair: Starting System - 2.0L EcoBoost (177kW/240PS) – MI4 / General Procedures - Starter Amperage Draw Test
NOTE:
Make sure the test is performed with the engine at
60.8
°F (
16
°C) or above.
-
Make sure the battery is fully charged.
For additional information, refer to: Specifications (414-01 Battery, Mounting and Cables, Specifications).
-
Disable the Fuel System. For Gasoline engines refer to:
For
additional information, refer to: Fuel System Pressure Release (310-00A
Fuel System - General Information - 2.0L EcoBoost (177kW/240PS) – MI4,
General Procedures).
. For Diesel engines refer to: Wiring section for fuel pump inline connector location.
-
Connect the 0-500-amp probe to the starter B+ Cable and to the VCMM .
-
Connect the VCMM and use the Oscilloscope option scaled to 100/A/Div. Add PIDS "Ambient Air Temp" and "Engine RPM".
-
Crank the engine, no more than 6 seconds at a time.
NOTE:
Allow 2 minutes between tests to allow for starter cooling to prevent overheat and damage to the motor.
-
Record the results, specifically Ambient Air Temperature
(AAT), Starter Current (Current Clamp) and Cranking speed (PCM signal
Engine_Speed).
-
Compare the results to the specifications in the workshop manual.
For
additional information, refer to: Specifications (303-06A Starting
System - 2.0L EcoBoost (177kW/240PS) – MI4, Specifications).
-
If both signals do not meet specification replace the starter motor.
For
additional information, refer to: Starter Motor (303-06A Starting
System - 2.0L EcoBoost (177kW/240PS) – MI4, Removal and Installation).
-
Clear all CMT DTC s.
Diagnostic Trouble Code (DTC) Chart
Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.REFER to: Diagnostic Methods (100-00 General Information, Description and Operation)...
Inspection
Remove the starter motor.
Refer to: Starter Motor (303-06A Starting System - 2.0L EcoBoost (177kW/240PS) – MI4, Removal and Installation)...
Other information:
Check
WARNING:
Invisible ultraviolet and infrared rays emitted in welding
can injure unprotected eyes and skin. Always use protection such as a
welder's helmet with dark-colored filter lenses of the correct density.
Electric welding will produce intense radiation, therefore, filter plate
lenses of the deepest shade providing adequate visibility are
recommended...
Repower
WARNING:
Incorrect repair techniques or actions can cause an
accidental Supplemental Restraint System (SRS) deployment. Never
compromise or depart from these instructions. Failure to precisely
follow all instructions could result in serious personal injury from an
accidental deployment...