May 13, 2014 · I’ve got a 2011 Mack with an MP7 in the shop with a rough idle, jumping between 600 and 650 RPM and low power. Truck has no fault codes. It’s gotten a new EGR pressure sensor, EGR valve, Fuel pressure relief valve, fuel filters. EGR cooler was clean when checked. Removed and checked for debris in fuel lines going to ECM cooling plate.

Nov 9, 2022 · have a 2020 mack mp7, having an issue with fuel in oil. Getting over a quart of fuel in the oil every 30 minutes. i just changed all injectors and cups per spec. what else could be causing this at such a fast pace? motor starts and runs as it should.

Working on 2011 mack mp7 and was needing torques specs for timing gear plate bolts on back of head Mike Mcmillan | Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel 18,158 Satisfied Customers

Working on a 2011 mp7 mack and was needing to know part number to def line to back of head on driver rear under the fuel Mike Mcmillan | Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel

Trying to do a force regen on 2015 mp7 refuse truck truck's regen process, Mack leu613, 222112, online chat is ok Mike Mcmillan | Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel

Working on a 2011 mack mp7 and was wondering where the thermostat bypass valve was truck has active code for it Mike Mcmillan | Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel

2006 mack ,mp7 engine. 2007 mack,mp7. 2007 mack,mp7. black smoke only when shifting.do not smoke when idling.there is no Mike Mcmillan | Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel

2015 Mack LEU MP7 Codes DTC P25AA DTC P0480 DTC P1137 Low power, when rev up goes to 1800RPM and then fluctuates down to Mechanic's Assistant chat Customer: 2015 Mack LEU MP7 Codes DTC P25AA DTC P0480 DTC P1137Low power, when rev up goes to 1800RPM and then fluctuates down to 15-1600RPMHow do I start troubleshooting?

Mar 5, 2014 · MP8 is better so yes 7 has some problems. I looked at a MP7 in a 2011 that was blown up at 256k cause the valves were adjusted wrong and it ate a valve. 10k to reman plus a head so 15k all done at Mack assuming nothing else was bad. Guy wanted 22k for truck as it was.....I passed based on a recommendation from Mack.

Crank no start Mack MP7. 2 days ago I did injector orings got it started ran for hours let it sit over the weekend now I Mike Mcmillan | Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel