Go figure, CEL came on last Sat as I was taking it in to dealer for Oil and Filter change, all week it was on. Started it up to take back this evening(because Diesel tech wasn't there on Sat), and no light on? Humm.. That thing just want too be pampered? Have a mind of it's own? Humm..

Rick

On emissions related issues if the ECM doesn't like something twice within a few engine cycles then it sets a CEL. On more serious matters it will set the CEL right away. If the failure doesn't happen again after a few power up cycles the CEL will disappear but the codes will still be there until after like 40 fail free cycles. Hope this makes sense.

Well, it is at the dealer over night. They can find out what happened. Hopfully, it is nothing.

They are also going to look at the Box Bed too see why rust spots are forming. My salesman said it might be Rail dust from transporting it? I don't know, but will wait for the verdict.

Thanks for the heads up on the CEL, Lakingslayer.

Rick

Rail dust on mine was terrible. I clayed the truck and it felt like I was claying over 600grit paper. Of course, the rust spots didn't start showing until we had a couple of nights of heavy dew.
I'm thinking a couple more clay jobs should have it pretty clean... probably half of the stains came off on the first job.

OK Truck back.. Said it was a Code P0181 Fuel Temp. Sensor Preformance. Said tested and at this time working Correctally.

Also did a Update calliberation for possable surge at low speed.

OK Sounds good to me, Now we see.

Rick