Pacar MX Engine fuel mileage

here they dont have those type of problems i think this is more refers to pete/kw

we have only one or two services here but they still work

scr give only crystallisation problems

 

I have to say, that Volvo SCR is less reliable thing.

But the best SCR system is Mercedes BlueTech. Detroit diesel owners know. But really Mercedes OM471 called DD13/15/16 in the USA is the MTU engine.

 

i know that man scr system is worst and they are lucky to have egr on maxxforce

with scr it would be real nightmare

 

MAN Advanced EGR + PM Kat is the real pain too. Precision EGR system is ash sencetive. PM KAT is like any DPF, may easily be blocked.

But there is Euro -3 version of D28. With EGR, but no DPF. Not available in EU now.

 

even euro 2 eith egr if i remember good they were set at 13%

but later version on 414 464.....,,

when you remove egr from 464 it get around 480hp

 

No Cummins for me.

I've already got a 6NZ or a MXS lined up for the transplant.

 

A positive step in the right direction....

 

I have a 2002 TGA 460...how do I take the EGR system off that?

 

Update on my 5 T660's with the 455 hp Paccar MX engines. These units are all approaching the 20,000 mile mark since put in service and my impression up to this point is not favorable. The units aren't getting any better fuel mileage than my T2000's equipped with C15 Cats which consistantly average between 5.5 to 6.0 mpg. The ECM readouts don't match what my pencil and paper shows comparing actual miles and gallons. The fuel mileage breakdown is as follows: 5.67 5.89 5.78 6.0 and 5.49. The T660's have the advantage of the espar heater and still aren't outperforming the T2000's that aren't equipped with espar heater. I also have the additional cost of DEF with the new units so my energy cost are higher with the new MX equipped units. My fleet hauls close to maximum payload a large percentage of the time and runs the mountains on the east coast. These numbers are based on all fuel usage and not just driving economy.
Mechanical issues are as follows: Number one injector line broke at the pump on one unit requiring a tow to a dealer. Fortunately the dealer had the line in stock and the unit was down for around 11 hrs. One unit had a low fuel delivery pressure code requiring a fuel filter change and I had difficulty finding a dealer that would even look at the truck without a 1-3 day wait. These filters can only be purchased from Paccar and at the time I didn't have any in the trucks for spares. The procedure to change these filters in different than on the older engines. Finally a Pete dealer in Des Moines, IA agreed to change them after my driver bought some from them and was going to attempt to change them on his own. Changing the filters corrected the problem which was an intermittant red shutdown light. I've had one unit at my dealer now with a aftertreatment problem for 5 days. The service manager told me that it is related to a fuel management module leaking and he had to order one. It took them 4 working days to determine the problem and I'm not convinced that this is the problem. I'll find out today.
We've had a laundry list of check engine lights since these units were put into service. Good luck finding a dealer that will help when these occur since they are all backlogged. I've instructed the drivers to shut the unit down and turn the key back on an wait until unit the system does it checks before restarting and see if the code clears. This seems to be all we can do at this time. If the codes doesn't clear and the truck has oil pressure and the coolant level and temps are Ok we keep driving until I can find a shop that will look at it. Otherwise freight will be late every day. My dealer has started a campaign that requires shielding the sensors from heat and the claim is that this campaign will eliminate these false codes. The down unit has been fitted with these shields but we have been able to test it since its still down of course.
I've intructed my shop to prepare to start freshing up the units that I pulled out of service that are equipped with Cats and Detroits. Out of frame overhauls, suspension rebuilds and paint jobs will be the order of the day. I'm not going to purchase any more of these electronic pain is butts in the near future.

 

Well, I've always had it in mind that at some point I will be replacing my 99 379 with something newer. So I've been intently watching these posts that CONSTRUCTIVELY review new engine technology. I also ask drivers any time I run into them at the pumps or yards, which isn't often these days as I'm mostly sequestered on the farm. Have to say the news is rather bleak. Was hoping the MX engines started getting a good record, what with the less than acceptable record of maxforce, and the exit of CAT from the marketplace. Maybe we should start a pool to predict what engine will emerge as a success story, and WHEN?! Meantime, I'll treat my 99 379 (3406e) with dignity and respect and whatever she needs until this all gets sorted out.