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Old 02-06-2022, 12:11 PM   #1
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Maxforce 7 turbo over 45psi check engine

My 2011 Monaco Vesta’s Maxforce 7 gets a check engine triangle light and the power drops off for a code referencing the turbo manifold pressure is above spec at 45 psi. Turn the engine off then on and the code clears. Now I watch the Engine turbo pressure gage and sure enough the psi bounces up into the 40ies but kind of unstable up then down? Any suggestions out there? Any good Maxforce engine shop sudgestiing? Preferably in California but I’m open to USA
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Old 02-08-2022, 07:27 AM   #2
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Have you called your local International dealer? They're the folks that made the engine.
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Old 02-11-2022, 09:21 AM   #3
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Quote:
Originally Posted by arcaguy View Post
Have you called your local International dealer? They're the folks that made the engine.
Thanks, seems it’s the only place to get help on the MaxForce 7 so I have an appointment next Monday
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Old 03-14-2022, 06:27 AM   #4
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Thanks, seems it’s the only place to get help on the MaxForce 7 so I have an appointment next Monday
Just checking to see if you got an answer to your problem. I have a 2012 Monaco Diplomat with Maxxforce 10. I have seen my boost go to 40-41 if I “put my foot in it”. I have no idea what the safest max boost is, or if the 40-41 reading is normal.
Dan
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Old 03-15-2022, 08:44 AM   #5
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Originally Posted by Dandick View Post
Just checking to see if you got an answer to your problem. I have a 2012 Monaco Diplomat with Maxxforce 10. I have seen my boost go to 40-41 if I “put my foot in it”. I have no idea what the safest max boost is, or if the 40-41 reading is normal.
Dan
The MaxForce 7 normally has a max psi of 30 to 31 and with the 45 psi I get a triangle engine light and the computer goes into slow down mode to protect its self. The shop did a computer analysis and said I need a new turbo assembly. Nobody fixes these things they just replace parts. Id think the 41 psi on you MaxForce 10 is probably normal especially if your not getting any engine warning light. Mine is still in the shop, I just hope I get it back before WWIII starts. Good luck and stay safe!
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