Won't Go Into Overdrive
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Joined: Oct 2006
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Won't Go Into Overdrive
I have a 2001 F250 Superduty - 5.4l 4-speed auti 4X4 Manual Hubs.
Lately, when cold, the truck is not dropping into Overdrive at highway speeds as it normally does.
I am not getting any check engine lights or any kind of other indications other than the RPM's are higher than usual and my milage is very poor.
Any thoughts?
Lately, when cold, the truck is not dropping into Overdrive at highway speeds as it normally does.
I am not getting any check engine lights or any kind of other indications other than the RPM's are higher than usual and my milage is very poor.
Any thoughts?
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,723
Likes: 2,650
From: SE Florida
Does it go into overdrive once it has warmed up? There is logic in the PCM that does not allow the torque converter to lock when the trans is cold, but it should shift to overdrive.
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