Got 5200 miles on my 03 Screw and for the first time I felt the "clunk" while waiting my turn at a 4-way stop. It felt like the tranny went into neutral for a split second and then went back into gear. I also on occasion pull a 24 ft. Terry Lite TT and notice that when I top a hill in second gear, the tranny will not shift into third for what seems like a really long time. Even if I completely let my foot off the gas. I really like my Screw but am concerned about the tranny. I thought about taking it to the dealer but know I will get the run around about how they cannot recreate the problem, blah, blah, blah.

I have the SC microtuner installed along with AF1 and MF 15609.

Anyone else have a tranny that doesn't shift into high gear similar to what mine does?

 

wryan,
my truck does the same thing, i have a 24' wilderness and quite often the truck won't upshift into 3rd gear at a steady speed unless i speed up and then let my foot off the gas. it will do it also when im not towing and i have cruise on, it will hang in 3rd and not shift into OD unless i speed up and then take my foot off the gas. I would like info on this as well. as for the rollback in drive, if you're on a slight incline it should hold, but anything more and it will probably roll back until you apply the gas.
BTW, I have tranny code E, is this the E4OD tranny?
Thanks, Tim

 

Yes, tranny code E is for the E4OD/4R100 (depending on model year). For your 1997, this is the E4OD (they shifted in '98, if I'm not mistaken).

-Jeff

 

so is that normal for the trans. to roll back on incline? because of vehicle weight ? or incase you might be pulling something on the hitch and you end up on a incline hill. does the trans allow the roll back too reduce the pressure .

 

I had the same problem on my 94 F150. It would occassionally do this under moderate to hard acceleration. Ford and AMMCO wanted to rebuild the tranny for $1300, but I had just had Ford rebuild it 40k miles before. I dropped the pan and found the 1-2 servo spring broken. Saved me $1290.