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Are you getting any misfire codes? Because the 4.7 do have a valve seat problem. The seat will drop and hold the valve open and cause a the engine to run poor.
i did previously before replacing the iac tps cam shaft and crank shaft sensor but not since the lights on still 0505 but it's the third iac and have cleaned the tp just a week ago!
Will do that tomorrow has been idling really well just shuts off after awhile and then restarts with no problem today. I have been shocked. Can that oil allow for it to just shut off like that.
