Why is my MP7 losing fuel pressure while under load?
Hey guys i have a 08 mack mp7 that is losing fuel pressure while under load. we have replaced the fuel supply line and all fuel lines on the motor, also injector cups and injectors have been done 3 times in the last 50,000 mi by the dealer. then we did the fuel filter housing and main fuel pump any ideas will be greatly appreiciated.
Where is the fuel cap on a MP7?
We have a MP7 that has a davco filter and the primary filter is capped off to, you can unscrew the cap and there is a o-ring on that cap, you might check it. There is a plastic cap right behind the hand primer pump, when you are using the hand pump is there a collection of fuel/wet around the cap?
Where is the fuel line on the out of Hope MP7?
The new style should have 2 knoches on it. Check the fuel lines and blow out the ECM cooler plate fuel galley and check the fuel line coming out of the ECM cooler plate as it goes into the back of the filter stand , it seems to plug at the filter stand banjo fitting.
Are there any MP7 engines that still have copper Cups?
I know of only 1 2008-2009 MP engine in our area that still has the orignal copper cups/injector holders in it, most were replaced once with the original style copper the again with the new conical stainless cups and injectors. Some would be hard to start after setting and some would set low fuel pressure codes only after getting warmed up.
Are there any MP7 engines that still have injectors?
BMT Certified Know-It-All! I take it that in injectors have never been out? I know of only 1 2008-2009 MP engine in our area that still has the orignal copper cups/injector holders in it, most were replaced once with the original style copper the again with the new conical stainless cups and injectors.
What kind of fuel injection does Mack E7 use?
The fuel injection system uses an upgrade to the Econovance technology of the E7 called the Mack V-Mac III electronic fuel control system which utilized electronic unit pumps. The E Tech engine also uses high swirl combustion for increased fuel efficiency and emissions production.
What kind of actuators do Mack Trucks use?
REMACK Turbo Actuators for Mack MP7, MP8 and MP10 engines are completely disassembled and cleaned using an ultrasonic cleaning process. We install brand new circuit boards, gaskets, harnesses and connectors.
What kind of fuel does a Mack truck use?
CAUTION Diesel engines for 2006 and later model year vehicles are designed to operate only with ultra low sulfur diesel (ULSD) fuel. Use of fuel other than ULSD will reduce the efficiency and durability of the engine, permanently damage the advanced emission control systems, reduce fuel economy and possibly prevent the engine from running at all.