Harsh 2-1 Shift
WARNING: This page is about a different car, the 2011 Ford F550 Super Duty and 2011 Ford F450 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC ROUTINES - HARSH 2-1 SHIFT
| Possible Component |
Reference/Action |
| 245 - ROUTINE |
| Powertrain Control System |
- CARRY OUT On-Board Diagnostic (OBD) tests. REFER to the
INTRODUCTION
article for diagnosis and testing of the PCM. For diagnosing SSPCB
, GO to PINPOINT TEST A . For diagnosing TFT
sensor, GO to PINPOINT TEST B . For diagnosing TSS
/intermediate shaft speed and OSS
sensor, GO to PINPOINT TEST D . REPAIR as necessary. CLEAR the DTCs, REPAIR the vehicle and RERUN the OBD
test.
|
- PCM, vehicle wiring harnesses, transmission internal harness, Shift Solenoid Pressure Control B (SSPCB), Turbine Shaft Speed (TSS)/intermediate shaft speed sensor, Output Shaft Speed (OSS) sensor, Transmission Fluid Temperature (TFT) sensor
|
| Transmission Fluid |
|
|
- CHECK transmission fluid level and adjust as necessary. REFER to PRELIMINARY INSPECTION in this service information.
- CARRY OUT the Transmission Fluid Condition Check. REFER to PRELIMINARY INSPECTION in this service information.
|
|
|
| Incorrect Line Pressures |
- CHECK pressure at line tap. CARRY OUT Line Pressure Test. REFER to SPECIAL TESTING PROCEDURES in this service information. FOLLOW the pressure diagnosis test as required.
|
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|
| Solenoid Body Assembly |
- Bolts not tightened to specification
|
- TIGHTEN to specification.
|
|
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- INSTALL a new filter gasket.
|
|
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- DISASSEMBLE and CLEAN.
- If damaged or parts are missing, INSTALL a new solenoid body assembly. If misassembled, reassemble correctly.
|
- SSPCB
damaged, stuck or bore damaged; manual valve damaged, stuck or bore damaged
|
| Overdrive Clutch Assembly |
|
|
|
- Filtered orifice damaged, missing, not seating, off location
|
- INSPECT for mislocation, poor seating, damage. INSTALL a new pump if damaged.
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- Friction elements damaged or worn
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- REPAIR as necessary.
- REPAIR as necessary.
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- Snap ring for One-Way Clutch (OWC) and/or return spring not seated or damaged
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