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P0303 code findings on my 2001 3.0L V6


greast

Member
Firefighter
EMT / Paramedic
Joined
Dec 31, 2018
Messages
5
City
Utah
Vehicle Year
01
Transmission
Automatic
Don't know if this will help anyone else, but I have been struggling with an intermittent code CEL for several months. I replaced the plugs and wires and checked the injectors, replaced the fuel filter, and still getting a miss and stumble especially when engine was cold/initial start up. In my searching/research for possible solutions to this, I found only 1 youtube video describing small cracks in the coil pack that can cause this condition. The coil pack needs to be removed in order to properly examine it for cracks, and mine indeed had cracks. Once I replaced it, ALL my issues were resolved.
I have tried to post links to videos in the past without success, but will try to include it here. Not confident it will work, but here it is.


This is the ONLY video I have seen describing this condition and it really helped me. Maybe it will help someone else.
Good Luck with your repair -
greast/chuckw
 

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