Will Not Shift to OD when below 20 degrees F

[ppo2]

Hi gang,

Info: 02 V10 4x4 61,000 miles

Problem: lately, the truck won't shift to overdrive unless I've been driving for a few minutes and the tranny (I guess) gets warmed up. I noticed this only when it's cold degrees outside (say 20 degrees F and below).

Once warmed up, the truck has no problems shifting into OD. I had my tranny flushed around 30,000 miles ago.

Thanks for any input, especially from our cold forum members up north.

Drive safe,

Dan

[loudfords]

I believe that's normal on newer vehicles. My Montana is the same way, and I once drove a Dodge company truck that never shifted into OD on a 1 hour drive during a deep freeze.

[snurtle112]

my 01 v10 does same thing..normal

[fordtruckster]

My EX does the same thing. It makes me sense to me, I believe it's normal. 03 V10. Relax

[Monsta]

FWIW, it is part of the emission strategy. The PCM prevents it from going into OD to keep the revs higher and to get the cat' converter up to proper temp.

[operator414]

My 99 Expedition has the same issue, I just had the tranny flushed less then a 100 miles ago, did it before and still does it now, after its warmed up in a cpl of miles it shifts perfectly, so I hope its normal....I'll keep my fingers crossed

[rlh68050]

This is a normal.

[1]

I always wondered about this but thought I was just over-examining **** again lol. Good to know I'm not crazy!