Is she just depressed

[blackbetty14]

2013's and earlier call for plugs every 30K miles. Starting in 14 we have 100K plugs. (nobody should wait 100k miles to change them though, just sayin')

Sweet 100k miles. Must be a platinum or iridium style plug. I would wait that long in the above style plugs, standard plugs I would change prob less than 30k.

 

[NYCruiser]

You can easily wait longer than 30K miles to change the copper plugs if the truck is running ok. These computer controlled ignitions fire them pretty accurately with the right mixtures, and are fairly easy on them, not like the old days with points misfiring them all the time.

 

[badfish888]

So hears what i got so far. My
Plugs were done at 30k ish So they only got 10kish on em and they were gapped. I checked em today and the 3 i pulled looked good. We dont have 89 here we have 87 and 88 and 93 I run 88 . I also use a bottle of lucas every other fillup. So i doubt its fuel related. I am a seafoam fan so i could try that. I hit the cats today with a rubber mallet and diddnt hear any noticeable rattle. I still need to pull the throttle body. What will reserting the computer do, If anything

 

[preachp]

Hi badfish,

Your 2012 has adaptive learning. It will read how you drive and the conditions around it for a period and then map itself according to the conditions and your driving style. Nobody mentioned it but if you have already reset the computer that may be part of the problem. It may be "learning" where the parameters need to be, if not that may help.
Good luck and hope you get it sorted.

preachp

 

[jwheeler]

Check the fuel pressure. A pump that is not putting out enough pressure will cause a major lack of power and very sluggish. It sounds like it could be fuel pressure problem or plugged exhaust maybe.

 

[dtru1222]

Many have covered the key points but I created a thread completely related to what you are experiencing.

Its a bit long but give it a read and try some of the solutions. I bet you wont be disappointed.

http://www.ramforum.com/f44/performance_issues_stock_canned_tune_octane-52984/