VFL

I had the same issue. I did a pan drop fluid and filter change for the transmission and it went away completely and now shifts much better as well.

R Geary

hey gator , quick question did you turn your overdrive button off when you had this trouble? I turn the overdrive OFF all is good. but when its on is when im having trouble with the stutter when I go from 0 to 60 all good go from say 55 mph to 40 mph then hit the gas I get the stutter. worried is it a tranny issue.

VFL

Yeah it only happened when the truck was in overdrive under load.

jp4lsu

Change your plugs. My 2006 shudderef and bucked in OD at 40-50 when trying to slowly accelerating.

Changed plugs snd cleared it up.

jamie930

Same thing in OD going up a slight grade it would shutter (had around 80k then) replaced the plugs no problems since.
After I pulled the plugs I knew why the electrodes on a couple were right at the porcelain

Firefighter433

I had the same issue around 55...ended up being the #8 ignition coil going out. Replaced it and no issues. Started doing it again a couple months later around 45-50 then replaced all 8 plugs and coils. No problems since.

backwoodsboy

Change Plugs and Coils. I had the same problem.

Neil Ningard

mine has the same shudder. Just had plugs done and coil pack 4 done. Doesn't shudder as much but once in awhile. Still fell a slight misfire. Maybe another coil pack is bad? Now it slips real bad when I floor it and stomp the gas. I can't figure it out!

speedstreetz

i had the same issue about a year after changing my plugs. ended up being 4 plugs (#6 the worst) were about ready to fly out, at first i thought i was dumb and couldnt figure out the plug size then realized they were just that bad. thightened them all down and it got better but not cured. replaced the cops with Grenatelli 45,000v and it got WAY WAY WAY worse. now im changing the plugs again when they get here, we'll see what happens.

Neil Ningard

well i did just put a cold air intake on. im changing back to stock. was running ok last nite after i put it on but ran HORRIBLE on way to work this morn. read a lot people had problems with those. i hope thats the problem. if not im thinking coil packs