trythis
Full Access Member
Hello fellow oil burners hoping all is well. I am having problems with my f super duty it's a 1996 450 it's a flatbed dump automatic 460 gasser. I've had the truck for several years. I let the tranny get dirty, when I changed the fluid and filter it was still shifting irregular and I changed the fluid again and put some Lucas in it so it's running clean fluid with Lucas but still shifts wrong.
When I start out with the truck hot or cold if it's been sitting for an hour, it will want to shift all the way up to fourth gear, just right off the bat.
If I manually shift it for a while it will start working right. This is the big automatic with the hump on the pan.
So I have a couple questions. What would cause this problem?
And is it safe to drive it like this and shift it manually?
I am sorry I just can't seem to think of any more information that may help so ask away please.
When I start out with the truck hot or cold if it's been sitting for an hour, it will want to shift all the way up to fourth gear, just right off the bat.
If I manually shift it for a while it will start working right. This is the big automatic with the hump on the pan.
So I have a couple questions. What would cause this problem?
And is it safe to drive it like this and shift it manually?
I am sorry I just can't seem to think of any more information that may help so ask away please.
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