"After all these months of trying unsuccessfully to get the engine fixed before finding the solution, we had to replace a couple more injectors and Isuzu told me that was my problem, not theirs. Our Process. We were going through a lot of injectors as well. A similarity with the reports we've fielded is that all involve parking area sweepers; to date, no street-class sweeper chassis problems have been reported with the exception of one contractor you will read about that has TYMCO 435 models. Keep in mind that the green light may come on signaling an automatic regeneration is trying to take place. Unfortunately this results in massive fuel dilution, especially with vehicles mainly used on minesites. Caution must be taken to not use any type of fuel that will create an insufficient burn in the combustion chamber, because that will create soot. The truck may be blowing excessive smoke during regeneration, and the auto regens no longer complete forcing you to perform a manual regeneration. The DPF helps to ensure that diesel engines do not emit clouds of black smoke into our environments through the exhausts. We'll get your diesel engine back on the road with and solve your EGR-DPF issues. Sometimes this can be repaired with a clean however nine times out of ten, once its stuck open, it needs replacing. Or is the DPF light now flashing but the truck won’t do a Regeneration? During this time it is important to note that the operator must not touch the brakes or accelerator pedal or put the vehicle in gear, since any of these will suspend the regeneration. I have ready replaced 4x new injectors but the issue is same as before. During the investigation process, and while going through the issue with Isuzu, that company's long-time regional manager, James Barnes, offered the following: We have made this part of their daily routine to ensure we get full regenerations each shift but... our DPF continues to clog up and the costs keep coming. I took it to dealers in three different locations, Dallas, Texarcana and Waco, in order to try to find a solution to the DPF system fouling out. Today's vehicles do not emit crankcase gases out onto the ground; rather, the system is completely closed. Unfortunately the reliability of the DPD and EGR has proved to be a real downfall to what is otherwise a brilliant truck.Nationwide Diesel Services assist our clients with accurate diagnostics & repairs to their DPD systems and can educate owners & drivers how to best manage these systems for maximum reliability. Also scrutinize your driving data to see what suggestions you might give to your driver that might increase fuel economy. Problem #2 - Fuel Dilution, caused by regeneration attempts. But the result is still same. I blog frequently and I really thank you for your content. If there are still questions, contact Isuzu's Consumer Relations Department. "They don't; just operate the vehicle normally because it's doing what it's supposed to. However, Barnes' tips about manual regeneration may not be the cure. One sweeping contractor interviewed for the first article in this series said they had started performing a manual regeneration after every shift, in an attempt to solve their DPF plugging issues. That doesn't mean you're out of fuel.

Part of the problem is filtering soot and ash, soot is relatively easier to remove through regeneration (burn it off) but the … Paccar PX-9. The oil level is rising. If your local to Perth make a booking for a diagnostic, if you’re not local I’ll be happy to chat with you to see if we can steer you in the right direction. Excavators Become a Dealer Contact us. In order to do this, the vehicle must be running at a speed of over thirty miles per hour. However, no one would ever advise anyone to replace a clogged DPF for Isuzu because a new one would cost $5,000 plus. Ask for an opinion about your percentage of requested vs. completed DPF regenerations: They will know if you are 'in the ball park' in terms of completion rate. When it showed full, he told us, the engine actually had about 2.5 quarts too much oil in the crankcase. Isuzu Dmax 2014 - DPF issue. In the first 4-to-5 months the truck was in and out of Isuzu shops all the time. Makes one wonder: Are we saving the environment or are we making someone some money for a failed system?" Enough heat must be produced to start a regeneration of the soot particles that become trapped in the diesel particulate filter. According to the filter specs the PPM has to be less than 15 but I am not sure about the bio side of it. In conclusion, you now have a good overview of how your DPF system operates. Are you having problems with your Isuzu D-Max?

This may happen several times; it's not uncommon for a 'good' regeneration record to be that automatic regeneration takes place only 75% of the time.

"I do not know if the people who designed this system counted on bio being mixed in the diesel or what impact it would have on the system... to repair this system ranges between $3000 to $8000 per sweeper.