Seems to skip more when idling in Drive?

 

So you are saying you did the entire list 1 through 7 of the thread I linked for you in blue? Did not skip any????

"1) Clean the TB with TB cleaner only.... there are multiple threads on this, the best way to do it is remove it, clean it, re-install it;

2) Clean the MAF sensor using MAF cleaner only... there are multiple threads on this (might as well while you have the intake apart to clean the TB);

3) inspect the coil on plug packs and their connectors to the wire harness and any obvious signs of corrosion from water on top of the head;

3.5) Check to see if ALL of your intake manifold fasteners are tight (they do vibrate loose on occasion) to 10 N.m/89 lb in.

If the problem still persists, and you have more than 70K miles (plugs should go damn near every bit of 100K in these trucks). If you do not have more than 70K miles, skip to #6 or feel free to change plugs for the sport of it:
4) change the spark plugs and inspect them for evidence of any fouling;

5) while the plugs are out, look closely at the plug on coil packs to see if there is internal corrosion, if so clean them with electrical cleaner spray and allow to dry before placing them back on the plugs.

If the problem still persists:
6) Pull the camshaft actuator solenoid and look for crud on the sensor, on the screen in the motor, or a missing screen... replace if necessary, tighten mounting bolt to 10 N.m/89 lb in.

If the problem still persists:

7) Then do a compression test, a normal read would be appx 1482 kPa/215 PSI. You can follow that with a leak down test. According to Hummerz when a leak down test shows a valve not seating properly, he performs an induction cleaning first, worked on his rig, and many of his customer's vehicles."

 

Going to replace camshaft actuator solenoid. Final Step

 

Truck has 52,000 original miles on it

 

Did you pull it and LOOK like the instructions said?

Throwing parts at stuff is easy, gets expensive, and does not fix stuff that is not your issue.

 

Yes, Look like original, so I just stuck new one in it. Still Chugs!

 

At 52K Miles, you did not need to replace plugs or the CAS.

Skip Seafoam, use top tier type fuel always and there will be no need for that ever.

Getting back to the I5 list, did you do #3.5? Common issue.

 

Found The problem. PCV Valve Hose was worn out. Thanks for your Help and Info.

 

You should rescind your previous post.
---->>>>SeafoamWorks!<<<<<<------

 

There's always a need for a quality top engine cleaner. Many buy that cheap quality gas at wholesale clubs, supermarkets, or local gas stations, instead of only using TopTierGas. After time, end up with excessive carbon deposits, and then complain when the idle is rough or cel is on, due to misfire. I've been using seafoam for almost 40yrs on my vehicles and customer's vehicles and can testify it does work!