F 350 2WD Super Duty V8-6.0L DSL Turbo VIN P (2004)
Transmission Cooler: Initial Inspection and Diagnostic Overview
Inspection and Verification - Automatic Transmission
CAUTION: Do not attempt to backflush and clean the Oil-To-Air (OTA) transmission fluid cooler. Install a new OTA transmission fluid cooler as
part of a transmission overhaul or exchange. Failure to follow these directions may result in transmission damage.
NOTE: When internal wear or damage occurs in the transmission, metal particles, clutch plate material, and band material can travel into the torque
converter, the fluid cooler tubes, the in-tank transmission fluid cooler, and the OTA transmission fluid cooler. These contaminants are a major cause of
recurring transmission concerns. To prevent future concerns, remove these contaminants from the cooling system before placing the transmission back
into use.
1. Clean the contaminants from the transmission fluid cooling system. Carry out the following:
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transmission fluid cooler-backflushing and cleaning
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torque converter flushing
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torque converter cleaning and inspection
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4RI00 cooler bypass valve cleaning and inspection
Also carry out the transmission fluid cooler flow test.
2. Visually inspect for obvious signs of mechanical damage, incorrect component installation, and system leaks. Repair as necessary.
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Install a new or remanufactured radiator when fluid is found leaking from the in-tank transmission fluid cooler.
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Install a new OTA transmission fluid cooler if there is leakage from the fluid cooler, and always as part of a transmission overhaul or
exchange. For additional information, refer to Auxiliary Transmission Fluid Cooler Oil-to-Air Fluid Cooler, 4RIO0, Auxiliary Transmission
Fluid Cooler - Oil-to-Air Fluid Cooler, TorqShift, F-Super Duty or Auxiliary Transmission Fluid Cooler Oil-to-Air Fluid Cooler, TorqShift,
Excursion.
3. If the fault is not visually evident, GO to Symptom Chart - Automatic Transmission.
