Not without the proper service tool. If the code goes inactive the engine will run at normal power. If it has low power with no fault light then you are looking at boost leak or exhaust restriction.
2010 prostar maxxforce 13 no power/speed
Discussion in 'International Forum' started by grandpa joe 71, Jul 9, 2016.
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Ok I was leaning towards turbos possibly the dealer I had taken it to said I got to much carbon on Valves but it starts just fine and runs just no speed or power and it don't look like they done anything to tear it apart taking to different dealer Thursday hopefully they will she'd some light
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Pretty easy to start trouble shooting. They need to have ServiceMaxx connected to the engine and road test and record what we call a 0-60 snapshot. This will record how the engine is performing when full power is demanded. They can see fuel pressure, boost pressure, exhaust back pressure and so on. If the power is low then they can see if boost is low and go from there. If the exhaust back pressure is in spec, then you look at boost leaks. Look at the manifold pressure sensor for being plugged too, that sort of thing. Turbo waste gate operation can be tested with an Air Management test. Don't forget the basics, check your air filter too. Hopefully they find something!
grandpa joe 71 Thanks this. -
Thank you for all your help
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Well I have an update its not the exhaust gas pressure sensor but they have done some more checks and find low boost and a sensor by one of the turbos has oil on it so the tech wants to look at turbos I know there is a process for everything but this is starting to become just throwing parts at it until it'd fixed
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I had a 2013 Maxxforce and had the same problem. Turns out my issue was solved by replacing the fuel pump.
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Hmm I never thought about that maybe dealer hasn't either
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From what the mechanic said....the maxxforce engines are hard on fuel pumps. In the 6 months I had mine I went through 2 fuel pumps.
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Just got off phone with dealer apparently the fuel pump is fine they said they are still diagnosing more I know I am really disappointed in this engine Navistar should just pull all these engines
Texnmidwest Thanks this. -
Dang, I thought we had the solution.
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