Need to see if they found the reason for it..dont want to spend thousands on guessesThanyou Debbie, Hi, can you see the original poster email....I would like to email them to see if they resolved probThankyou. Participant reference: whrl.pl/ReFnZJ. I pulled over and thought may as well do it manually as I’ll be stationed for an hour or so.. Regen bars are still full and nothing has been done. Woah. Has anyone had their DPF successfully cleaned through a workshop other than the dealership? If there is no traffic and moving ok, there is no issues. It kind of sounds like it's asking for a manual regen (I'm not as proficient with Isuzu). This will make its way into the engine and cause the same issue after the repair. but how would you like a tube out your ass back into your mouth? There are DPF cleaning services if you search around- https://www.dpfregen.com.au/diesel-truck-dpf-cleaning-sydney/and you have to do a bit of homework on maintaining your DPF-http://www.oilem.com/dpf-cleaners-and-dpf-cleaning/and no doubt cleaning machine technology is advancing with the size of the problem. i cant see emails because im only new here. Thanks. You can its in the setting but mine would do the burn every 250 to 300 k's automatically and to be honest you hardly notice it usually between ten and fifteen minutes for the Isuzu. Meanwhile, my hubby is having a nervous breakdown because he's worried it will stop in the worst place, as is often the way when something goes wrong (the first DPD filter stopped the truck without warning near the 400,000k mark and it had to be towed), or that he'll spend the money on injectors and turbocharger and the problem will continue. 2011 Isuzu NPR red exhaust light light, amber regen light blinking, engine derate light on, no codes, exhaust differential is at 0.02 psi. I'm ready to start a class action against Isuzu for this particular issue. If this is the case, get them to clean the intercooler and other pipes of leaked oil as well. Any suggestions? Hello, we are having the same prob...do you know the original posters email thanks? It's all good to have a process that works well with new engines, but the process needs to produce consistent results as these engines age. Found turbocharger bypassing oil and wastegate frozen. As you note, replacement DPF's don't always behave like the first oneand this is quite possibly because of the extra junk it's expected to swallowonce the engine ages. The longer the filter is in service the amount of ash builds and negatively impacts back pressure and the rest of the follow on effect, It'll get to the point it'll have to be removed to be cleaned or replaced if not a serviceable type. With the new filter, it began irregular burns. The mess hadn't been helped by home maintenance with cheap oil, but the mix of blow-by, EGR and extendedchange intervals had left the intake plenum with a sectional area of 4 square centimetres at the head interface instead of the normal 12. 2011 Isuzu NPR-HD 5.2L (6 4HK1) High Idle. The new filter was put in by an Isuzu service centre and they started a manual burn with the new filter BUT didn't finish the manual burn – just stopped it part way in (so we wondered if this could be a problem but others said no.). I can do the DPD delete on the 4HK, 6HK and 6UZ models, but not the Giga's. Three different Isuzu … This solution is available for the entire Isuzu truck range, for bookings contact us today. Generally the Scr gets damaged with contaminated DEF. Can you show it as a excel file? Not talking about passenger vehicles more so trucks here. Doesn't solve your problem now. actually it'll be a complex mix of lubricant additives, wear metals and other non-combustible material. yet we still continue to have problems. My Chev which takes adblu kept putting messages about the quality of the product up and I could notget rid of it so as Performax and Isuzu are linked back up to ballarat where they could not fix it (I paid 1.500) then they wanted another 1200 for two nox sensors at that point I bit the bullet as it was obvious that ISUZU did not know how to fix the problem and throwing expensive parts at it was no guarnatee it was fixed .In the end I got the car chipped o.k. Upstream and downstream sensors replaced as well as the filter cleaned. I felt it could be a problem in the system controlling the burns because of the 'jumping of the bars', but none of the service centres have said there is a way to reset or reboot the system – and I'm an English teacher, not a mechanic, so what would I know. The only thing that we have been told that could be causing it is a leaky EGR or the computer needs to be reconfigured, or reprogrammed. Just because I have to ask, does it have the rotary idle/rpm control knob on the dash? The next Isuzu specialists ran a heap of tests and said the injectors tested fine (they were replaced some time back by this service centre) but perhaps the turbocharger was a problem and it was producing a lot of soot which made for irregular burns. Has anyone got OP email ? Thank you, First off when driving highways speeds, it does a regen about every 125-150 miles. All well and good to do a delete until it gets a love note from the RMS for a pit and emissions inspecton, Hello, just wondering if you found out the cause of problem as this is happening to us now. Isuzu npr regen problems Isuzu npr regen problems. Or it could be a combination of things or a performance issue. was a very expensive extercise, Hi I'm just going to ask a few questions about your truck if that's okay.1 what work does the truck do freight , city or long haul driving 2 does the isuzu dealer service the vehicle 3 the soot on the other side of the dpd filter did it start after any other issues engine light on , truck just serviced.4 has the wiring connection been checked over.
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