What happened to Mack?

I, honestly, couldn't tell you. I know it has the MaxiCruise package, but I'll find out what engine's in it, today.

 

I usually drive a 2003 CH613 daycab with the AC355/380 and a 9spd. Good little truck, dependable and everything works, but gutless to the point I seriously think someone stuck a softball in the exhaust, or worse.

Lower end isn't bad, peppy in city driving, but it takes almost 4 miles to get to 60 mph on the flat (Strick or Dane 53' dryvan, usual load weight between 10k and 20k lb). Same thing on hills... 5 Mile hill (4% grade) on I-80 in PA approaching I-380 will slow me from 67mph to 40mph with an empty wagon.

Another coworker told me the turbo had been replaced... If the turbo is too small will this happen? We've got a bunch of Vision daycabs with the same motor and none of them bog this hard when empty.

 

a 380 maxi cruise would have a small turbo, how much manifold pressure does it run, when is the last time the air or fuel filters have been changed, have they bothered running the overhead? the truck can be made to pull there could be something in the software that needs corrected or updated but the maxi cruise was not meant to be a big powerhouse but it should pull alot better than that empty

 

My 613's got the E7, 380hp rated motor.

 

my old Mack was a '00 CH613 w/ 56" condo, 355/380 E-7 and autoshift. It had 978K miles on it when we traded it off, I was responsible for 970K of those miles. It was a great truck, but it was gutless and the jakes sucked. Overall, it was awsome reliable, up until the last year when it developed an electrical problem that would cause it to derate. It was a semi frequent problem that the company gave up on and decided to let Mack deal with it before someone else bought the truck.

My company has 7 Mack daycabs, all are '99 through '01 models and 2 are '04's. I was stuck driving one of the '99's today while they were PM'ing my '09. It was like going from a Caddy to a Yugo. Yes the trucks are holding up, but they shake, rattle, creak, etc. The one I drove today whas 450K on it, same small motor. Gutless, but dependable.

I remember that problem with the cam. Mine had that happen on it at about 145K miles, my jakes weren't working and we took it to the dealer. Took them 2 weeks to fix it. It's still not a totally fixed problem, my '09 went in for work becuase my jakes were lagging at about 80K and they had to replace the cam on it as well. They said it's still an intermittent issue with these trucks.

My '00 went through 3 turbo's in it's lifetime. The original one it had great power, the second one it was down on power, the third one was middle of the road. The engine could be turned up to a 427 but for the $5,000 Mack wanted, my boss told me to live with it.

 

In Chicago there,s more Macks than any other brand. In the rail yards it,s a old Mack truck show, I can be just eeking thu the pot holes in a century class or worse the cascade model freightshaker and a old 75 r model Mack will blow my doors off and the mack looks like there,s not a pot hole at all, while the freightshakers hood looks like it,s going to fly off. On I-81 in VA. there,s alot of Mack trucks, with 60 to 70 in. bunks. If you get off the interstate in Va. you need a well built truck, and the smart co.s buy Mack. The axle forward pinnacle looks hot, like a old chu. I would like to find a company in the midwest that has Mack otr trucks and willing to relocate to drive a Mack truck again. I talked to drivers that where in there 1st mack and they like,em more than other trucks, they turn sharp,lots of room inside, good power for the hills, cab is on 4 air bags. It,s been 3 years since I drove a mack, sure miss that bulldog.

 

i hate Macks. mack makes their own engine too. lol. Mack doesn't even use CAT, Cummins, or Detroit Diesel engines. i'd take a Volvo any day over a Wack.

 

You can order a MACK with any engine you choose!!!!

Mark