Ford 2003 Mustang Workshop Manual page 2393

Shift Concerns: Feel — Harsh
Possible Component
214 — ELECTRICAL ROUTINE
Powertrain Control System
· Electrical inputs/outputs,
vehicle wiring harnesses,
PCM, EPC solenoid, OSS
· Engine driveability concerns
314 — HYDRAULIC/MECHANICAL ROUTINE
Fluid
· Incorrect level
· Condition
Incorrect Pressures
· High line pressure, high EPC
pressure
Main Controls
· Main regulator valve,
overdrive servo regulator
valve stuck, damaged or
assembled incorrectly
· EPC solenoid stuck or
damaged
Shift Concerns: No 1st Gear, Engages In Higher Gear
Possible Component
215 — ELECTRICAL ROUTINE
Powertrain Control System
· Electrical inputs/outputs, vehicle
wiring harnesses, PCM, shift
solenoids, digital transmission
range TR sensor
315 — HYDRAULIC/MECHANICAL ROUTINE
Shift Linkage, Digital TR Sensor
· Damaged or incorrectly adjusted · Inspect and repair as required. Verify transmission shift cable
· Carry out Self-Test. Refer to the Powertrain Control/Emissions
Diagnosis (PC/ED) manual for diagnosis and testing of the
Powertrain Control System.
Pinpoint Test E . Repair as required. Clear DTCs, road test and
repeat Self-Test.
· Refer to Routine 253.
· Adjust fluid to correct level.
· Inspect condition of fluid.
· Check pressures at line and EPC taps. See the to Line Pressure
Chart for specifications. If pressures are high or all shifts are
harsh, go to Main Controls. If pressures are OK and a specific
shift is harsh, refer to the following shift routine(s) for further
diagnosis:
Shift 1-2, Routine 320
Shift 2-3, Routine 321
Shift 3-4, Routine 322
Shift 4-3, Routine 323
Shift 3-2, Routine 324
Shift 2-1, Routine 325
· Inspect for damage. Repair as required.
· Inspect for damage or contamination. Carry out EPC tests in
Routine 214. Repair as required.
· Carry out Self-Test. Refer to the Powertrain
Control/Emissions Diagnosis (PC/ED) manual for diagnosis
and testing of the Powertrain Control System.
Pinpoint Test A or
required. Clear DTCs, road test and repeat Self-Test.
adjustment. Refer to
shift cable as necessary. After repairing transmission shift
cable, verify that the digital TR sensor is correctly adjusted.
Reference/Action
Go To Pinpoint Test D
Reference/Action
Go To Pinpoint Test C
Section 307-05 . Adjust transmission
or Go To
Go To
. Repair as