How To Determine Return Line For Transmission Cooler On A 2007 Ford F-150

Updated 12/05/2022 | Published 12/03/2022

Question:

Which line is the return line on a 2007 f150 transmission

asked by: Randy N

Expert Reply:

To determine which line is the return line to install The Derale Combination Transmission and Engine Oil Cooler # D15902 onto your 2007 Ford F-150 there is a few steps you will have to follow. You first will need to start the engine when it is cold. Next you need to place the transmission shift lever in drive for no more than 10 seconds. Next you will need to place in park, stop engine, and remove keys. The final step will be to identify the oil return line by feeling both oil lines. The cooler one of the two will be your return line.

If you have any further questions please feel free to reach back out to me anytime and I would be more than happy to further assist you in your towing endeavors.

expert reply by: Noah E