Join Date: May 2018
Location: we live in a high mountain valley in the hi country of northern arizona
You want the bad news or the worse news...…(there is no good news about this kind of malfunction....!).
Are you confusing the CAT with the DPF ? in either event, your truck's computer is programed to go into "limp mode" when there is a malfunction in that portion of the pollution devices. Given the internal components of a CAT, I would be quite surprised if your problem was there. I am also surprised your truck has not yet gone into "limp mode".
"Limp mode" isn't funny. If you un-hitch and abandon your load, you will be able to move the truck - on level roads you can often get up to maybe 40 mph. Pulling any kind of load...? Forget it - your truck may or may not be able to maintain about 15 mph - really lovely for the Interstates.....!
What to do?
Elsewhere you will find "threads" on how to resolve the problem. To get your truck back in service, you do NOT need to do a "full delete".
A "full delete" is a terrible thing - causes massive deaths in bunny wabbets, A0C will need a double dose of Midol....and when human life ends on Planet Earth in ten years because YOU deleted your truck, YOU will be held personally responsible. And worst of all, you will be deprived of the delightful excitement, wonder and anticipation because your truck's computer will no longer be able to, without warning, put you into "limp mode".
The LEGAL and RESPONSIBLE solution is do what the "big boys" do - the OTR's who have the same problem, in that they also are equipped with pollution controls pretty much identical to ours.
Well....with these differences. Of course they are much larger, & they are designed to be field serviceable.
All over the country are shops who specialize in cleaning out DPF's. Many have the advanced and sophisticated devices to "clear" your truck's computer, so you start out fresh. I would guess a DPF, either new or PROPERLY cleaned, should be good for upwards of 80,000 mi.
More bad news - read the small print - you will find warning after warning that extensive idling - even slower speed driving can overload a DPF to the point that "on board" re-gens can not clean it. Yes - there is such a thing as "forced re-gen". You can try that; my own experience is that when a DPF is that clogged, if it works at all, it will only be good for a few thousand miles if that.
True, many of these big shops do not bother with consumer-grade trucks like ours - too much trouble for them. But there are shops that do. Figure about $700. They will cut your old DPF out of your truck, cut it apart, clean it PROPERLY (with a badly stuffed DPF on-board "re-gens" will only work, if at all, for a while) & re-install with "quick disconnect" fittings so you will be able to remove it easily yourself next time it needs cleaning.
2013 3500 long bed crew cab. Purchased at approx. 80,000; now have 91,000, convert to CP3. DPF "triggerd" a limp mode, so was cut out of the vehicle & cleaned by a DPF cleaning co., on re-installation, everything back to normal. Would never ever think of something as nasty and as anti bunny wabbet as a full-delete...after all..dosnt everyone like the fun & excitement of being stuck by the side of a Interstate in the ran while towing when one's truck's computer decides to go into "limp mode"...?.
Last edited by 6686L; 11-19-2019 at 08:42 AM.