I have 2001 GTP 120K. Just got two codes this morning heading to work. P0440 and P0404. It seems the codes is referring to the EGR valve? Should I try gumout or Seafoam?
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08-02-2011
I have 2001 GTP 120K. Just got two codes this morning heading to work. P0440 and P0404. It seems the codes is referring to the EGR valve? Should I try gumout or Seafoam?
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