Steve_RI Posted June 3, 2019 Share Posted June 3, 2019 Truck sat for a couple weeks....when I started her up, ran rough (like missing a cylinder), but went away after warm up. Ran some Sea Foam for good measure, but this weekend it was running rough again until warmed up then, poof - runs fine....like flipping a switch. Anything obvious I should look for? Link to comment Share on other sites More sharing options...
gamellott Posted June 3, 2019 Share Posted June 3, 2019 Possibly the coolant temperature sensor telling the computer that it's already up to temp when it's actually cold. That would be my first thought. Link to comment Share on other sites More sharing options...
Manik Posted June 4, 2019 Share Posted June 4, 2019 Check your EGR valve, ive seen them hang open just slightly and cause this issue. Maybe a vacuum leak at the intake manifold, doubt that, but it is possible. Check your spark plugs, ive seen them have carbon tracing that would show similar symptoms. Sent from my LG-H700 using Tapatalk Link to comment Share on other sites More sharing options...
Steve_RI Posted June 4, 2019 Author Share Posted June 4, 2019 I have some time tonight to poke around....thanks. 1 Link to comment Share on other sites More sharing options...
Steve_RI Posted June 27, 2019 Author Share Posted June 27, 2019 Everything looked fine. Then I went back to the recent issues I had with the fusible links. I replaced them recently and changed the connection at the battery post. I don't think II was getting a good connection the way I had it set up in the pic. I fixed that and truck is running fine. Don't know if this was the issue, but it may have contributed? Link to comment Share on other sites More sharing options...
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