fertilizerdude

Good to hear! I would like to know what throtle response setting they messed with?We always set the torque setting to max before they left the shop!The Program >Because of the way the engine is set up the more fuel you pour in at the begining, the more smoke you get at take off the air isn't there to mix it with with it.Unfourtunatly,adding more fuel at that point will give you a bit better responce at a fuel cost!As long as your happy thats good.

The engine load threshold no mph signal was set to 100% from 40%

torque limit was set to 2200lbs from 2000

customer torque limit gear ratio set ot 58 from 1

torque limit ramp up time set to 1

removed torque limit w/pto

Hey they finally made it better. I called the district S/M and in 2 Days they had a new file to put in the truck along with some parameters which the dealer had not checked. One being the torque setting the other was some response thing that was set at 40% and they set it at 100% then the new file and its much better still not what one whould expect but so much better. Thanks for your help all!!

Have them contact their "Distric Service Manager" DSM and he can get somethings done. We had to do this on a truck with low power. Our DSM let us take truck to a Dyno shop and see the real results on paper. Truck should put 80 to 75% of rated power to the ground. Engine usually lose 20-25% through the drivetrain. Our truck had bad injectors and was 6 months old with less than 30,000 miles. Call Mack and complain- 18008661177

I called Mack and they sent another file to put on the ECM and it also did nothing. So here we still sit. Dealer said they were going to contact the DSM and see what to do they are at a loss too.

Whats the last 6 of your vin and I will compare the software it to whats in my friends 6 CV's that are 2007 460 HP's

Well my Mack dealer was left scratching his head. they had the truck for 3 days and did all the tests they know of and still cant make it have any power. they said they could tell it was down on power but dont know what to do about it. I guess its time to go to another brand I cant believe they can build a piece of crap like that and stay in business.

Take it to a Mack dealer and tell them you need the "throttle responce" file flashed on your VECU and any available data files and software for the EECU. The download from Mack is free to the dealer, you should only have to pay for the time/labor to install (2 hr usually) They will have to call Mack tech support and have them turn it on. We do this about once a week and it makes a big difference in power and of course throttle responce between the gears. Do you have a turbo boost pressure/ manifold pressure guage in upper left corner? Should be atleast 30 something + at full load, more boost the better.

Is there a bulletin number or flash number that I can give my mack dealer for this flash He says Mack says my software is the latest and greatest but He didnt specifically ask about the throttle response flash. Thanks

Those gears and tire size are good, just dont go and change over to tall 24.5 tires as you might be undergeared. We had sold a customer a 3 new CV's with 460's a couple years ago and one was a dog. We had it put on the dyno and it was truly weak. We changed the injectors and then all was good, must have got some water in the fuel or just some screwed up injectors. Now it runs the same as the rest.

The dealer said when they went on Macks website it said my truck has the latest flash on it. So Im sending it down next week to see whats wrong with it. Thanks for your help

Also what rear gear ratio, transmission and tire size do you have. The most AI engines has a small torque curve and if everything isnt right the performance will suck. I know for a fact that a AI engine with a Fuller 8LL and 4.17 gears and tall 24.5 tires has no low end and takes forever to get going. 4.42 and 4.74 work the best with tall 24.5 tires ( the 4.74 hurt the top end alittle). We no longer order/use the Fuller 8LL due to less warranty and the Mack trans seem to be geared better (love the 310M or the Mack 13-18 speed). We have had to regear so trucks up to the 4.42/4.74 Good Luck

I have a Mack 10 speed transmission. The gears are 4.33 and the tires are 11/22.5. My fatherin law has a vision with a 427 and says it really pulls and its also a 2006. With just a 118K miles on mine I cant imagine it has anything seriously wrong with it.

Take it to a Mack dealer and tell them you need the "throttle responce" file flashed on your VECU and any available data files and software for the EECU. The download from Mack is free to the dealer, you should only have to pay for the time/labor to install (2 hr usually) They will have to call Mack tech support and have them turn it on. We do this about once a week and it makes a big difference in power and of course throttle responce between the gears. Do you have a turbo boost pressure/ manifold pressure guage in upper left corner? Should be atleast 30 something + at full load, more boost the better.

Yes I have a boost pressure guage and it will read 30 if you have it under load at 1700 rpm but the problem is it wont get to the 30 psi until then it just seems it needs the fuel earlier. Also it wont lug with near the power of my 400 2001 CH. For supposing to have another 60 horse it is truly a DOG...

I have a 2006 Mack granite with a 460 and it seems the turbo doesnt start to spool until its about 16 rpm then you have to shift and it goes back down to 1450 and it just hits the wall. I was cruising on the 4 lane and went up a decent hill with light load and it dropped from 65 to 58 with 460 hp????? no way something isnt right HELP????