Pulling a heavy trailer in heavy wind in 4th gear. About 2700 RPM at about 65 MPH with cruise on. Engine revs up a bit pulling a hill -touches 3000 rmp and suddenly drops to about 2200 rpm and 60 mph.
since then cannot rev past ~2500 or get ground speed over about 60 mph on the flat.
It feels like there is a wall at 2500 rpm. Feels like it does when fuel gels.
nothing "hanging loose" under hood.
truck runs great right to that spot. In lower gears can rev past 2500.
i blew something loose overloading I am sure - just cannot see what I blew loose.
Thanks in advance.
have the same problem?
Saturday, March 3rd, 2007 AT 9:30 PM