waterdawg

Well the truck quit working again. Took it back to the dealer they said the turbo we just put in is a bad turbo. They put in a new one, it ran for on week and now it doing the same crap. Anyone know what numbers I can call to start moving up the food chain? My boss don't like confrontation but I don't care. I have a job to do and these trucks won't run long enough for me to do it.

Any Codes? Could be a bad cam, #7 injector, or maybe injector cups. Have you had those updated yet? Not a mechanic myself. I am just giving you ideas based on my experience with granite's.

Long story, but let me just say that this has been a focal point in many arguments with my boss. By the way, got the correct turbo. The truck runs good.

Well here is the latest. After taking one of our trucks to the shop multiple times and getting it back with the same problems, I told our shop foreman to just order the $4000 turbo and try that cause we are getting nowhere with mack. We got a turbo in and it was the wrong one. They sent us another turbo which matches the one in the truck. But then we are told the turbo that was in the truck originally is the wrong turbo. Got it? So the first turbo they sent us is the correct one (they tell us) but it wont fit because there is one piece of exhaust pipe that wont fit the turbo. We asked them to send us the correct exhaust pipe and they can't find it. So now I have a truck that is 2 years old, have been having problems with it from day one with regeneration that can't be used because no one knows what turbo actually goes in it. We asked the mack engineers what would happen if we just put the turbo in that matches the original one and they said it probably won't regenerate. Which is our problem now. I am sending another one to mack today and I have two more down. How in the hell does a single owner operator expect to make it with something like this? If their truck is in the shop like this all the time? The saga continues...

You are correct, Allison makes the auto's. You are also correct in that the other manufacturers are having similar problems. When I took one of our trucks to the shop the guy asked me what were the symptoms. After telling him, "he said don't tell me, it's a mack." Then he said each one has it's own problems and you can almost distinguish each one by the symptoms. I watched an ad not to long ago from Cat making fun of Macks. It would be interesting to see if they back their words up. We have been entertaining the idea of glider kits. But they produce their own problems as well from what we have learned. You are also correct about the Government. The Government just needs to back down and stick to what they were intended to do. But we all just sit back and continue to let it happen while complaining about it. I have tried to do things in my own community to get people to understand what the proper role of Government is, only to have them complain and agree but not back it up. It's too bad. The way things keep going we soon will not be able to say anything.

I just found this place and found it to be helpful on some of the issues we are having with the new Macks. So I decided to share my experiences with them to you. I work in the oilfield and we decided it was time to phase out some of our old worn out Macks while expanding. Our first trucks were 10' granite, automatic. we were leary of the automatics but fell in love with them. After about a year we started to have troubles. Injectors would go bad, trucks won't regen, ABS quit workin etc. We would take them in to get repaired only to send them back a week or so later to get fixed. Then the EUP pump bolts started snapping off. Before we new it our trucks spent more time at Mack then working. So we started to buy other models thinking Granites sucked. Nope! same Problems! Our first truck finally ran away on a road side. We pulled all fuses, disconnected battery, alternator, foot control and could not get it to shut off until we packed the air filter with rags. After our Mechanic got there we started it up and it tried to run away again. Too late, engine was already damaged. Mack towed it and tried to say natural gas caused it to run away. Until they learned that other truck drivers pulled over to help and their trucks never did anything. Then they tried to say it had 1/2 inch mud in the engine. How the hell it got there I do not know. After fighting with them for 3 months because they would not fix the truck or warranty it we finally got it back. After running it for 5 days we got water in the oil! We don't have that one anymore. Meanwhile an automatic transmission went out on another truck and they tried to tell us there was sand in it. As I talked to the head mechanic he told me they had lots of issues with sand in the new trucks, especially sand in the urea tanks on the newer trucks that are off road. What the hell? Is that Macks way of getting out of warranty? Or are these trucks strictly highway use? We had one truck that went haywire after raining. We decided to go to a different dealership thinking we were getting hosed by the other one. The people at this new dealership told us the the problem was mud on sensors and wires. we asked how do we remedy that and they said you can't drive in the mud... Okay, whatever. Now we have trucks that do nothing but go to the shop then come back, run for a week or two, then go back to the shop. Air conditioner evaporators constantly split at welds, constant injector problems, regen problems, cluster problems, abs, leaks, wire harness problems and on and on. We are now looking into gettig rid of these pieces of Junk and going back to the CH models. The R models are just way to small and way to noisy. We have spent so much money trying to keep these things running that we could have bought several older trucks and rebuilt them. They fight us at every turn on warranty issues and guess what, we lose. If you have a chance stay completely away from these damn trucks or you will lose your butt.

I found this place while searching for help on new Mack trucks and figured I would give it a try. I work in the oilfield and because of the recent boom we have grown way fast and bought 5 brand new mack trucks to add to our fleet. Right now every new truck but one has problems with this new regeneration nonsense. And it's continuous! 1 truck we cannot get it to regenerate. The turbo won't kick in the blue button doesn't do anything when pushed and it has high oil temp. In the past we have changed out fuel filters on this truck multiple times to get it to run right but for only a few weeks. We just got it back from Mack shop 4 days ago and now we have the same problem again! Any suggestions out there? 1 truck is in the Mack shop right now because it wont regenerate. 1 truck we got back from Mack 2 weeks ago because it kept shutting itself off. Now it shows high oil temp and the turbo kicks in and out. 1 Truck shows no oil pressure, the turbo kicks in and out and wont regenerate. What the heck is the deal!! We are a small company and the cost to maintain and repair these new trucks are just freaking killing us! Meanwhile the old CH models are runnin like champs! We are new to all this new stuff and our mechanics are just at a loss of what to do. We figured buying these things would give us less downtime but boy we were wrong. Any suggestions about what we should do repair wise?