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Transmission Fluid Cooler Backflushing and Cleaning: Material

WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
ITEM SPECIFICATION

Item Specification
Motorcraft® MERCON® LV Automatic Transmission Fluid
XT-10-QLV		 MERCON® LV
NOTE: Use transmission fluid specified for this transmission. Do not use any supplemental transmission fluid additives or cleaning agents. The use of these products could cause internal transmission components to fail, which will affect the operation of the transmission.
NOTE: Transmission fluid cooler backflushing will be carried out using the Transmission Heated Cooler Line Flusher. Follow the manufacturer's instructions included with the machine. Test the equipment to make sure that a vigorous fluid flow is present before proceeding.
NOTE: If the Transmission Heated Cooler Line Flusher or equivalent is not available, install a new transmission fluid cooler and/or an auxiliary transmission fluid cooler.
  1. Check and top off fluid level of the cooler line flusher with transmission fluid.
  2. Allow the fluid in the cooler line flusher 15-30 minutes to heat up to 60°C (140°F) before using.
  3. Install the line adapters on the transmission fluid cooler tubes.
    4. NOTE: The FRONT transmission fluid cooler tube on the thermal bypass valve is the transmission fluid cooler pressure tube.
  4. Attach the cooler line flusher red line to the transmission fluid cooler pressure tube quick disconnect fitting.
  5. Attach the cooler line flusher blue line to the transmission fluid cooler return tube quick disconnect fitting.
  6. Follow the equipment instructions to purge the transmission fluid cooler tubes and transmission fluid cooler prior to starting the flushing procedure.
  7. Allow the transmission fluid cooling system to backflush for 10-15 minutes, then flush the transmission fluid cooler in a normal flow direction for an additional 10-15 minutes.
  8. Clean the transaxle mounted fluid cooler tubes and the thermal bypass valve by hand.
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