3.8 Engine Troubles ? Help Please!

madstiles said:
Yes sir I used the factory plugs and checked gap didn't need to adjust as they preset also used the grease stuff.
I was thinking of buying a tuner to see if that helps but think I'm gonna call and see if they can reflash as was suggested before anything else.
What kind of tuner do you use?

Their comment about regearing kinda helped me justify gears with the wife though lmao

It is running better now but still not full power it comes and goes which is what gets me especially since it doesn't throw a code . Pretty sure they think I'm crazy lol
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I have the SuperChips tuner and running the performance tune
 
This is old thread but got a Superchips flashpaq for Christmas and it fixed my problems! No more hesitation or shittyness! Thanks for the assistance

Sent from my SAMSUNG-SM-G935A using WAYALIFE mobile app
 
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