grademan Posted February 14, 2017 Share Posted February 14, 2017 Have had really bad luck with International engines (2004 & 2007) and looking at buying a couple of used Mack dump trucks, 2006-2016. Are these MP8-455 good solid engines? We've had some older Mack trucks with Mack engines in the past, and we had good luck with them. They weren't new, by any means, when we got them. Those were 1979 (300 plus) & 1984 (350). Are the newer Mack emissions dependable or are they having trouble with them? 1 Quote Link to comment https://www.bigmacktrucks.com/topic/48738-mp8-455-engine-feedback/ Share on other sites More sharing options...
bulldog52 Posted February 14, 2017 Share Posted February 14, 2017 We have 3 2007 Granites with MP7 405's in them. 2 tractors had around 120,000 miles and the 1 dump had 27,000 on it. Shortly after getting the dump, had to do synchros in the trans. Camshaft in both tractors, one injector harness got oil up in it causing a misfire. Replaced 1 egr cooler box, 3 turbo actuators, and we're constantly fighting electronic sensor issues with oil pressure and exhaust temperature. Just discovered another leaking oil cooler box and a major leak in a power steering box. Volvo has taken Mack's quality downhill. Our R models and CHs were money making trucks.Sent from my XT1565 using Tapatalk Quote Link to comment https://www.bigmacktrucks.com/topic/48738-mp8-455-engine-feedback/#findComment-361647 Share on other sites More sharing options...
bulldog52 Posted February 14, 2017 Share Posted February 14, 2017 Sorry I meant egr cooler box not oil cooler box. Oil cooler box was on the 2005Sent from my XT1565 using Tapatalk Quote Link to comment https://www.bigmacktrucks.com/topic/48738-mp8-455-engine-feedback/#findComment-361648 Share on other sites More sharing options...
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