tranny don't want to shift

[emt59602]

I just bought a 06 and the tranny don't want to shift when it cold i have to speed up and then let off the gas to get it to shift. I does this intill the tranny temp is in the normal operating range after that it shifts great. pluged filter?

[Rebel81x]

I've got the same problem on an 2006 with 77,000 miles. Anyone want to chime in to help.

[Galaxie]

Do you have a tuner? Have you had it serviced?

Mine holds onto shifts about 100-250 RPMs higher when its cold.

[tiny_J]

same issue! any fix? or just take it to ford?

[Rmorgan711]

2005 6.0 125k here and does same thing when cold since almost a year or so old.
After it shifts the first time ( 500 rpm or so higher or until I blip the throttle some ) , it usually doesn't do it again ?

[craftkr]

Looking at an 05 and it's doing the same thing????? Ideas? I've heard of a bad injector causing something like this... any truth to it?

[Rmorgan711]

I don't known Kevin ?
It seems if it were an injector it would stay running crappy ???
Mine just does it once in awhile after it sits on really cool / cold day for several hours overnight , after it shifts the first time it dosen't do it again ..

[craftkr]

I've heard and read in a couple of other threads on here where the culprit was a bad injector. I agree with you, if it would be an injector you would think it would be all the time. I see allot of people with these problems but not allot of input. I've also heard that selinoids can be the problem too. I am going to keep researching this and see what I can find out.

[Rmorgan711]

I was told by Service Tech. it is probably a sticking solinoid in tranny when cold. Since mine is out of warranty ..I'll live with it !

[craftkr]

Originally Posted by Rmorgan711

I was told by Service Tech. it is probably a sticking solinoid in tranny when cold. Since mine is out of warranty ..I'll live with it !

I hear their not that expensive, now as far as how easy they are to change??? I'll keep you posted.