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Oil Cooler Flow Check

NOTE: Manufacturer recommends using Mopar Dexron-IIE/Mercon ATF fluid.
  1. With transmission filled to proper fluid level, disconnect oil cooler return line from transmission. See Fig 1 . Place container under oil cooler return line.
  2. Add one extra quart of ATF fluid to transmission. Apply parking brake. Start engine and allow to idle. Place gearshift in Neutral. Check fluid flow from oil cooler return line.
  3. If fluid flow is intermittent or takes more than 20 seconds to obtain one quart, replace radiator or external oil cooler. Reconnect oil cooler return line. Fill transmission to proper fluid level with ATF.
Fig 1: Identifying Oil Cooler Lines
G92D13451Courtesy of CHRYSLER CORP.
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