Two problems related to automatic transmission cooler have been reported for the 2007 Ford F-150. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Ford F-150 based on all problems reported for the 2007 F-150.
Transmission cooling line going through radiator failed causing coolant to mix with transmission fluid. Resulting in transmission failure. Transmission had to be entirely rebuilt and radiator also had to be replaced. This occurred at highway speed.
Noticed leakage under front left tire. All transmission fluid had leaked out. Transmission oil line rusted through. Had previous leakage which I repaired with a piece of high pressure line. Checked metal lines of transmission oil cooling system and found numerous areas rusted out and ready to burst. Had truck towed to dealer to replace cooling system lines. Was told corrosion is a common problem with the lines on f150. Can't understand why if this is a common problem Ford does not notify owners about possible preventive action to deal with the corrosion or use non-corrosion materials for pressure lines.