My 2005 GMC Canyon has a 5 speed manual transmission. The oil seal behind the transmission looks to be in good condition, but oil is leaking out of the drain hole in the seal. Is this a result of another seal leak inside the transmission housing? Or could this be a result of not driving the truck much? I usually drive it about once every 2 weeks.
Aug 20, 2011 at 8:18 PM

