External Transmission Fluid Leaks

WARNING: This page is about a different car, the 2011 Ford Pickup, 2011 Ford F550 Super Duty, 2011 Ford F450 Super Duty, and 2011 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

EXTERNAL TRANSMISSION FLUID LEAKS REFERENCE CHART

Description	Possible Source
Leaks at the transmission fluid pan to case	Transmission fluid pan bolts not tightened to specification Transmission fluid pan gasket damaged Case transmission fluid pan rail damaged
Transmission fluid cooler tubes or O-rings leaking	Transmission fluid cooler tube(s), transmission fluid cooler tube O-rings damaged Transmission fluid cooler tube hold-down plate damaged
Leaks at the transmission fluid cooler	Transmission fluid cooler damaged Transmission fluid cooler tube O-rings damaged
Leaks at the manual control lever	Manual control lever seal missing or damaged
Transmission harness connector	O-ring on connector missing or damaged
Output shaft seal	Seal missing or damaged Output shaft nut loose or damaged
Extension housing leak	Extension housing bolts not tightened to specification Extension housing gasket damaged Case to extension housing damaged
Park pawl plug	Park pawl plug loose or missing
Drain plug	Drain plug loose, missing or damaged
Case plugs	Line pressure plug loose, missing or damaged Feed and return plugs loose, missing or damaged