Kenneth Forbus

With the low mpg and issues I would highly recommend ask your dealer to examine your misfires on each cylinder. I think you'll have a high amount of misfires on number 6 and a bad left bank catalytic converter. Just my guess from my time viewing issues on the forum.

Kenneth Forbus

I two have the rough idle at start up but I have great mpg and no issues with misfires or IC condensation. Doesn't bother me at all.

I also think the combination of turbos, compression ratio and direct injection gives that searching idle on cold starts. This is my first DI engine though so I can't compare it to anything like it.

jknight

Is the shield they are putting on the IC mounted on the top and drapes down the back about 8"?

maplelakeduckslayer

No, it mounts on the top and covers part of the front of the IC, Look at the shudder thread in the 2009+ section, theres pics, much more info.

jknight

Can someone post the shudder thread with the pictures? I can seem to locate it.

Thanks
Jeff

JDogerty

Here is a diagram I posted on another thread. The shield is the part labelled "A".

JDogerty

Some actual photos can be found in this thread:
https://www.f150forum.com/f70/there-...rcooler-156900
Look at posts #243 and #251.

jknight

Thank You.

jknight

I took a road trip this past weekend. At this point my overall mileage on the screen is 17.3. The miss was more noticeable the longer I drove it. I would say that 90% was highway mileage. It goes to the dealer on Mon. I will drop it off Sun night so they can start it when its cold. I'll let you know what they find out. I do have the shield on my IC.

Jeff

jknight

Picked the truck up yesterday from the dealer. There were no code or misfires recorded and the tech took it for a drive but didn't fill the miss. So I'll drive it and hope it get better or it throws a CEL. The best part is I left the dealer and started getting on the interstate when I noticed they didn't shut my hood tight. The service adviser heard about it after words. Doesn't give me much confidence in the dealership.

Jeff