Slow 3-4/5 gear change.
My trans was acting up the other day.I've owned my '03 6.0 since since 08/07. 12/08 at around 55K miles the tranny went bad, would seemingly not go into 4th gear, then slam in, possibly downshift, pull again, then same scenario all over. If I would drive hard enough to keep it in 2nd or third, then let off the throttle to let it up shift to 5th it would do fine. I had it rebuilt by a local national chain transmission shop,( if I remember right they said the main drive clutches were shot,) and all was well until now. They also said that a solenoid had likely failed causing it to hang up in 2 gears which caused the clutches to burn up. 90,000 miles later it is doing the same thing. I find it unacceptable to put a tranny in every 100k miles or less. The truck is essentially a cowboy cadillac,living in the city. It pulls my 3500lb boat a dozen or so times a year. It has a banks sixgun tuner ( I've been convinced it needs to go), banks intake, and oversized exhaust. tires are 285/75-16. I had Ford service the tranny at 75,000 miles. I also noticed that this time the tow position light on the shift lever started flashing.I hadn't driven it for a couple of days, but I had to drive it today. I was especially easy on the throttle using just enough to get it moving. I noticed that what was occurring was a painfully slow 3-4 gear change. Once it is in 4th, I can roll on the throttle, and it will pull, then shift normally into 5th and overdrive. I don't know enough about this tranny or how it works. To me this sounds like a sticking solenoid. Although, I have no idea how to change it.Could this be the problem with a sticking solenoid, although I wouldn't have any Idea how to change it.
Last edited by walter.dreyer; 02-25-2013 at 06:28 AM.