missing out

[Eldon Webb]

I have a 2001 job 2 that is missing out badly. I just had the plugs changed and the wires tested. The mechanic says he thinks the #5 5 cyl. has a sticky valve. I changed the oil and added Sea Foam and it cleared up but was back within 3,000 miles. I changed it again and added Sea Foam again but it is back again after 1,500 miles. I have had luck cleaning the IAC motor sa per Todd Zabbia's project, but not this time. I wonder if I should try a new IAC motor. Any Ideas?

 

[EddieS'04]

was it missing before the new plugs.? If not you have cracked plugs or crossed or broken wire ends.

 

[swshawaii]

Long shot, but check firing order. Note coil sequence 1-2-3-5-6-4. Trouble codes?