2006 Ford E450 Transmission issue
Traveling over the Rocky Mts in 100 degree heat the transmission fan ran occasionally. After a stop for lunch the transmission ran when we started up and went into limp mode when we tried to accelerat...
Forum Discussion
Grit dog wrote:Rolin wrote:
Does anyone know if you can lock the transmission in overdrive if you select 3rd gear? That would reduce fluid temps on a long hill.
Your trans has 4 forward gears. 4th is OD. 3rd is direct/1:1.
3rd and higher rpm’s will run cooler all things equal.
The trans kinda has 5 forward gears,1 2 3 OD and converter lock up.It normally shifts 1 2 3,lock,OD.If in the 3 position,converter will lock but not shift to OD.This is the least heat generating condition but will come out of lock on a hard pull.The converter then slips which causes heat build up...can be bad news on a super long grade.If it seems to struggle even in tow haul,manually down shift.Less engine effort = less heat.That noise problem could very well be a cat problem as previously mentioned.Happened to me. Loss of power,hissing type of sound,pull over,noise quits,runs ok again,maybe for days before it happens again.Ended being a chunk of whatever is in the cat lodged itself in the tail pipe at speed,fell away at low rpm and apparently stayed there till who knows when.Might be worth looking into if you can't figure it out.
