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MP7 Rebuild at 110,00 Miles

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I have a 2008 GU713 with 110,00 miles that already needs an engine rebuild. The rings were broken on #1 and #6 and scratching on the others. Our Mack Dealer tried to get Mack to pick up some of the cost and they refused. The cost is almost $15k. We own 6 Mack trucks from different years and haven't had issues. Has anyone had ring issues with the MP7?

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Yes on the broke rings and your not yelling loud enough. Contact corprate offices. They should get you in touch with the dealers DSM ( district service manager), he can make things happen.

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I never had engine problems,but had a Mack transmission fail in a 2007 at 480k miles that Mack wouldn't cover one dime on. The DSM didn't help either. In the 40+ years we've ran Macks,never ever did spend a dime on a Mack transmission or rear end,other than maybe a leaking seal. That was over a year ago and I'm still pissed.

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I guess they don't make 'em like they used to...OP sorry to hear about your troubles!

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DSM is the one that said we were on our own.

same here

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DSM is the one that said we were on our own.

Just another example of mother Vulva tightening the noose on Mack's customer service, along with the future of the brand....The DSM's are limited by what corporate Vulva says. It is only going to get worse, NOT better.

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110,000miles........ Yikes! How many engine hours and what application was the MP7 used for? That sucks. I hear these kind of stories with DD15 engines, bummer.

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I guess there is no incentive to build a quality product if you don't have to stand behind it.

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try to contact David McKenna he was the powertrain guru for Mack and is still one of the top dogs from the Old Mack undedr the new ownership see if he can help, hes the one that put my 04 Granite in the Bulldog magazine I talked to him at mack of Nashville for a while one night he was a great guy with a ridiculous amount of old Mack knowledge. his old business card lists..... office 610-709-3898, cell 610-653-5095, and email david.mckenna@macktrucks.com

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If Mack is doing business like this I might as well by one of the older Mack's and take my chances! I feel for you buddy! I was just considering getting a newer one!

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I would just put new rings on pistons with new liners and reuse everything . I have seen very high milage mp7 8 with almost no internal engine wear , the bottom end of these engines are very strong.

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Thanks everyone for the input. I had called Mack Corporate to file a complaint and they told me that someone would get back to me in 4-6 weeks. The company and the product aren't what they were. This a boom truck for concrete that is vital to our business so I didn't have much choice but to have them fix it. I am shocked that with $8k in parts Mack or the dealer wont do anything.

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keep pounding on them , one tricks when you talk or write : Always stay polite and courteous but firm and confident with facts , and DO NOT ACCEPT a 4 to 6 week delays , this is not acceptable.

good luck

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Yeah don't expect much from Pete, kw is better but its still pa car. The newer ISX 13 and 15 Cummins is doing well from what I hear, actually from what I'm hearing they are the best of all of them for issues.

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Yeah don't expect much from Pete, kw is better but its still pa car. The newer ISX 13 and 15 Cummins is doing well from what I hear, actually from what I'm hearing they are the best of all of them for issues.

from what I see is the ISX's don't get the fuel milage as good as Detroit or Mack.I want at least 7.5 with 1750ftlb and 455 hp.with direct drive.

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Yeah don't expect much from Pete, kw is better but its still pa car. The newer ISX 13 and 15 Cummins is doing well from what I hear, actually from what I'm hearing they are the best of all of them for issues.

i wouldnt touch cummins, everything i hear is mack/volvo is the best engine right now. i know several guys with 2010 and newer cummins isx 15 that hate them . sensors and injector problems and cracked heads .

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Such a shame newer big trucks seem to made just like everything else these days.Overcomplicated,and designed to have a short lifespan...

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I don't think any newer diesels will ever be reliable long lasting engines, there's too much electronics and too much heat and back pressure on them. I still think if I needed a newer truck I would look for an 07 back and just rebuild the whole truck. You can make it whatever you want that way and you'll get better fuel mileage and reliability, oh and no FET.

03 and older, no EGR

BULLHUSK

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