How to Replace Transmission Cooler Lines


Below guide will teach you  How to Replace Transmission Cooler Lines. Please follow the instructions carefully.

Things You’ll Need:

  • Flashlight
  • Screwdriver
  • Combination Wrench Set
  • Drain Pan
  • Socket and Ratchet Set
  • 3/8 in. Drive Ratchet
  • Mirror
  • Transmission Oil Line
  • Brake Cleaner

Estimated Costs:

  • DIY Costs: Est. $54.59 parts only
  • Shop Costs: Est. $167.19 parts and labor

Instructions:

  • Park the vehicle on a flat surface and set the parking brake.
  • Lift the front of the vehicle up with floor jack.
  • As a precautionary measure, rest the vehicle on the jack stands.
  • Search for the transmission cooler hard lines that are connected to the radiator and examine them for any signs of leakage.
  • Put the drain pan under transmission and detach the transmission cooler lines from the radiator.
  • Next, detach the transmission cooler lines from the transmission and let the fluid drain out in the drain pan.
  • Disconnect the old transmission cooler lines.
  • Take the new transmission cooler lines and connect them to radiator first. Then connect the lines to the transmission.
  • Take the recommended transmission fluid and add the fluid in the transmission up to the indicated level.
  • Switch the engine on and leave it idle for some time. Switch off the engine.
  • Examine the fluid level with the help of dipstick. Add more fluid if required.
  • Take a small drive and observe the lines that there are no leaks.

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