davieboi89

I will try this , thanks man . What if it doesn't do it vs. It still does it ? What does it mean ?

MADDAWG99X

Is it down shifting when you go up the hill?

davieboi89

It doesn't feel like a downshift , 2100 rpm then right down to 1800 .

MADDAWG99X

When you're going up the hill your transmission should downshift. If it isn't, it's a shifting solenoid problem or a tcm problem. If it is downshifting and still bogging down, it's an engine performance problem

davieboi89

I really gotta step on it , then it down shifts and doesn't bog down . I have to get on the pedal though .

chepp157

I had a similar issue, it went from occasional shuddering during slow acceloration (such as going up hill) to being more often occuring and eventually I was having a cylinder misfiring if I would try to accelotare hard through the "slipping/shuddering". It showed an error on my dash so I ended up taking my truck in and having all of my plugs pulled and replaced and a new coil pack and my truck has never run better.

Hope you can figure yours out!

davieboi89

Thanks for the feed back man , when I changed my plugs I inspected the boots and ignition coils and they seemed fine to me . Not entirely sure here as to what's going on , I don't want to take it in for a tranny issue that it does not have .. That'll cost a few bucks ... Hehe

repuff

i would look into getting the tcm upgraded the dealer should do this very cheap or free i had it done on a 2009 f150 with a 4.6l had some shifting issues i didnt like and it cleared it right up shifted like a new truck after that good luck

davieboi89

Thanks man , should I reflash to stock then take it in ?

repuff

i didnt flash mine you may want to try it i dont know i just took it in and the upgraded it for me took about 10 mins and they never charged me anything to do it