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Hope they get it fixed for ya. Yea the ASET engine is a whole different ballgame.

I'M gonna get it in the shop this week i will keep you'all posted on the progress- again thanks guy's

Don't forget fjh and Mackpro68, I just did some of the leg work.

I don't want to forget ANYBODY it was a team effor THANK'S FJH and MACKPRO68 i would be lost without you'all

the company i work for had a similar problem with their cl's it turned out to be the fuel tanks had rotated and put a kink in fuel hoses both the pickup and return hose we rotated the tanks to remove kinks and problem disappeared.

That is the direction i was headed in, i got home from work early today and started removing the fuel line i got the feed from the tank to the filter off but since i got the info from rhasler i am taking it back to performance and let them change the data files to the correct ones and let them know a real mechanic diagnosed the problem, i wish i was close to his shop and i wouldn't have to fool with these people....so glad i found this site, who know's where i would be without all of you - thank's everybody

That VIN still shows that the VECU datafile is setup for an FRO15210C transmission. If you have changed the transmission you need to have the datafile changed as well. I have run into this changing from a 13 speed T313 to a T318 transmission (they have the same end ratios) even though the parameters for the speedometer fault were removed. Also this is an ASET AC engine, and not an Etech CCRS, which has problems all it's own.

VECU software is 1MS364 with datafile 1MS365 (step 9B), EECU software is 1MS368A with datafile 1MS5166P13 (step 3A). If the turbo has been changed it should be a 631GC5176(A,B,C,or D)X. The original turbo should have been a 631GC5171. You need to replace the drain tube on the turbo with part number 681GC544

and then have the EECU flashed with 1MS387 software and programmed with a 1MS5183P13 datafile. You will need to contact Mack One Call and have this information changed and set up, you will then need to take it to a dealership and have the modules programmed. Make sure they calibrate the throttle and turbo after programming and enter the EUP cal codes. If you take it back to Beaumont make them do it for free, since they should have checked/changed all of this already!

Thank's a million man, i suspected it was something electronic why the mack shop did not know this is beyond me but i could tell that the mechanic's were not trouble shooters if the shop computer didn't spit out the problem it wasn't going to get fixed.I hope they know what to do with this info.By the way i have not changed the transmission it is a fuller 10 speed that is what came in the truck.I want to thank you again and everybody that took time to help me --THIS SITE ROCKS IT IS THE BEST.....

Make sure the coolant is shut off to the fuel heater, if it has one. Alot of the Davco fuel filters have built in fuel heaters in them and I had Bigen's truck in the other day and it had hot coolant running through all the time with no shutoff. Just something to look at. Whats the last 6 of your vin#? I can pull up the parts and software levels in the ECM,s.

vin#1m1aa13y54n156276 4mr21084 that's the complete vin number

after every thing we have done to the truck mechanicly I firmly belive it is in the electronics and since i have changed the ecm and then had the new turned up to dump more fuel something is telling the ecm not to dump enough fuel or it's one of the other ecm's I do not kknow what this other ecm's control by the way my cruise stopped working after this happened

Thanks men i do apprricate the info and you taking time to help me.I will keep you posted on the progress.I will try another lift pump

after every thing we have done to the truck mechanicly I firmly belive it is in the electronics and since i have changed the ecm and then had the new turned up to dump more fuel something is telling the ecm not to dump enough fuel or it's one of the other ecm's I do not kknow what this other ecm's control by the way my cruise stopped working after this happened

This may sound stupid, but has anyone checked the fuel tank, pickup tube, and cap vents? I've seen tampons, fishing bobbers, and even ham sandwiches floating around in fuel tanks causing the same type of problem. I've also seen bent in fuel tanks restrict flow into the pickup tube as well as fractured pickup tubes.

Doesn't sound stupid at all like you i've seen this to had one that had a hole in it,how it got there is anybody's guess When we were checking fuel system we disconected main feed and run it to 15 gal tank and set it on the back of the truck, same thing still

wonder if they ever thought of checking the air filter, lots of dust in the woods and some new fuel filters, around houston your probley getting more bio blended in with your fuel than you think, rather than replacing ecm's I would have put some oversize injectors in it and max the settings out

The very first thing i did was to change air and fuel filters at first i thought it was fuel filters that's what it acted like. Looking back i wish i had put oversize injectors in it but the new ones performance put in was the same size that came out of it.But like i said it was running fine until this happened so i didn't consider bigger injectors i thought maybe one or two had gone bad the mechanic at performance mack said that was about all that was left to try. If the computer is not letting enough fuel to the injectors putting bigger ones in it wouldn't do any good The ecm that is inside the cab, what does it control

I would put it on a Dyno before I bought another part! We have had to do this before to make sure we really had low power. Our sales dept. will sell a guy a used "Ryder" spec truck with a 355/380 and the guy is used to a large CID Cummins 500HP and complaine it has low power when it actually doesn't. With 33-35 psi of boost it should be doing great. I didnt think they put waste-gate turbos on CCRS engines except for the 460 HP. Not to be confused with the ASET engine with the VGT turbos.

The truck ran fine for a year so it had good power then lost it. It is not that i think it should have more it did have more for a year.The way it is now is actually dangerous, i'm afraid somebody will run into the back of it with log's sticking out and i don't even wan't to think about how bad that would be i'm starting to think it may be better and cheaper in the long run just to put another engine in it a cat or cummings definatly not a mack engine i'm done w/ mack they want and do control every aspect of a truck they do not own this i do not like. Performance mack would not even turn up the horse power and this truck is not under warranty I did buy it from (ryder) in houston. We don't have a company with a dyno around here houston maybe, but i'm 40 miles north of beaumont ANYBODY WANT TO BUY A MACK TRUCK..........

Bro I can't help but feel were not getting the full story here!

(4 months ago while hauling a load of logs I lost power in upper gears) does this mean what it says!? you lost pulling power ? or it quit lost battery power ?

If you lost pulling power somthing you had but is now gone in the top range Can you xplain the circumstances a bit when and how it happen all at once, during a pull on the same hill, is the boost up or low in this situation, yada yada !.Also what trans do you have!If it is a mack 18 un plug the torque limit switch on the back it may be messing with your mind some ! There is somthing going on here that the puter thinks is ok and I don't know if the guys you been dealing with have checked the peramiters in the puter to make sure all the torque settings and speed settings are opened up turn off or up 100% any derates related to road speed or set them out of reach! The problem you have maybe in the Vehicle ECU not the engine ECU.We can try and send ya the right way here hopfully we can't always fix everything but weel try.

I mean just what itn say's i was going down the road and it started losing speed untill it was down to 45 mph, on a hill it all but stops i don't mean the batteries man this is why i posted here,nobody around here can figure it out.I am a pretty good mechanic in my on right ,just not a computer genuis and that is what you have to be to work on a mack. I had one of the best mechanic's in southeast texas work on it after PERFORMANCE MACK TRIED FOR 4 WEEKS but he works at a volvo dealership and dosen't have computer acess but he could check a lot of things and his last guess was the ecm after he did all he could.He even hooked gauges to check fuel pressure boost pressure.pyro tenp fuel temp, air in fuel hooked up a lap top and had another mechanic drive it down the hiway while he checked all he could But PERFORMANCE MACK is a authorized dealer they said that they removed the parameters and short of a overhaul that was all they could do. this truck only has 430,ooo miles on it -- it was running good going down the hiway all at once it stared losing pulling power and that what happened i haven't been able to restore power since. Runs good empty but add even a lite load (20 tons) and it does 45 on flat ground 25 on hills not mountains. hills i never have to down shift this pete i just bought making same runs i made w/ mack..i no it's a stumper that's why i'm here but if you can't help i do thank you for tryingn and your time it had a 10 speed road ranger but it pulled fine for almost a year

Updae i sent the new ecm that i bought to jballelectronics and paid $1200 dollars to have it "turned up" to give me more horse power another 1oo hp supposely.I put it on this morning, no difference Don't waste your money on these ecm horse power incress company's it does not work, not for me any way

I wonder if your wast gate is stuck closed and your going into derate! is the engine fault light coming on? 33 psi is max on a ccrs engine it will drate after that.

TWO DIFFERENT SHOPST CHECKED THE WASTE GATE,HOSES FOR LEAKS ECT.. THE TURBO WAS CHECKED THROUGHY .The boost pressue is about 33 psi it just under the 35 psi mark..I don't think it is going into derate mode Because i can unplug the boost pressure sensor and it will derate and then it loose's power even in lower gears Forgot to tell you tha i have no codes showing

"charged me $5,000 and sent me on my way"

Was this a Mack dealer. If so, which one?

Performance mack/kenworth in BEAUMONT TEXAS

A little more info please! does the engine smoke black under pulling conditions ? Does the pyro climb in excess? What kind of boost does it make pulling.If you have no smoke then Did anyone think to check the fuel preasure ya need 60 psi or better.

No smoke,pyro temp is good,bost is 35 psi under load,fuel pressure is 80 psi Also forgot to add changed injectors and checked fuel lines

First Time Posting.I need help bad.I have a 2003 ch613 w/ a 355/380 hp engine that I haul logs with, 4 months ago while hauling a load of logs I lost power in upper gears. dose good thru lower gears but hit 8th and it just stops pulling and i have to go back to 7th.If climbing a hill hauling 30 tons it will fall to 30 mph.I put it in the shop, they changed charge air cooler, exaust manifold bolt's,, one was broke all new hoses and clamps,lift pump,checked all EUP's and selinoid's,checked turbo has 35 psi boost.Finally after 4 weeks they called and said they had done all they could do , charged me $5,000 and sent me on my way.Still no power so i took it to another shop where i know the mechanic but they are a volvo dealer and not authorized to work on mack so no computer access but he is good and done what he could w/ a borrowed lap top.He said he checked all the obvious things and changed ALL the sensors.Still no power so i put a new ECM on it,still no power During this time I'm not working and spending money /5 weeks. So i parked it and went and bought a peterbilt w/ a 410 caterpillar but still have the mack just sitting in the yard costing $950 a month any heip will be greatly APPRECIATED...