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Old 05-16-2012, 10:41 PM
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SuperiorStyles SuperiorStyles is offline
Dodge Ram Forum Senior Member
Join Date: Jun 2011
Age: 32
Posts: 356
Gender: Male
Vehicle: 2002 Dodge RAM 4.8L 290ci
Trim Level: Quad Cab SLT
Color: Black
Engine: 2002-2007 287ci (4.7L) PowerTech V8 235hp 295lb/ft
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I recommend changing the spark plugs back to Champions OEM part # RC12MCC4 and gap them to (0.040 in.). 4.7 don't like to many plugs on the market except the oem style copper.

Also start looking into the crankshaft position sensor which controls many of the symptoms that your having. Some major symtoms of this sensor on 4.7 are cuts off as soon started,Backfires,Irregular RPM Function and false sensor reading causing incorrect timing and signal to the pcm.

Test your idle control valve to make sure it's opening and closing correctly and your TPS these sensor are main control of your throttle signals and idle signal to your pcm with out all these sensor working at the correct specs your pcm with start giving you your problems your having.
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