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Daniel Wilson
Daniel Wilson,
Category: Medium and Heavy Trucks
Satisfied Customers: 1635
Experience:  Owner at DJ Wilson
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I have a MAXXFORCE ENGINE IN A PROSTAR+ INTERNATIONAL

Customer Question

HI, I have a MAXXFORCE ENGINE IN A PROSTAR+ INTERNATIONAL TRACTOR, IS GIVING ME THE CODE 3055 AND ITS SAYS "FRP BELOW MINIMUN WITH MAXIMUN COMMAND"
JA: What's the make/model/year of your truck? Engine type?
Customer: IS DOESNT START
JA: Are you fixing your truck yourself? What have you tried so far?
Customer: INTERNATIONAL PROSTAR+, 2012
JA: Anything else you want the truck mechanic to know before I connect you?
Customer: IM FIXING IT MYSELF IN MY MECHANICH SHOP, I HAD JUST REPLACED THE FUEL FILTERS
Submitted: 3 months ago.
Category: Medium and Heavy Trucks
Expert:  jetskigreg replied 3 months ago.

Have u pumped the primer located on filter base assembly black knob to left of filter base grab and twist like loosening bolt it will come you will have to pump several times navistar says 150 times but it veries also you may have to pump try to start and pump again to get to start or have somebody pump while someone cranks DO NOT USE STARTING FLUID

Customer: replied 3 months ago.
but looks like the fuel system doesnt get charge, its like sending the fuel back instead of loading the fuel lines.
Expert:  jetskigreg replied 3 months ago.

Dont understand ur comment how can you tell if it looks like its not getting charged

Expert:  jetskigreg replied 3 months ago.

Was the truck running before u put new fuel filters on?

Customer: replied 3 months ago.
No, it was not running
Expert:  jetskigreg replied 3 months ago.

Ok now we r gettin somewhere do u have a way to hook computer to it to tell me what the fuel rail pressure is at crank

Customer: replied 3 months ago.
666 psi
Expert:  jetskigreg replied 3 months ago.

Holly crap your fuel pump has taken a crap on you it will never run it has to have several thousand pounds just to start or you could have a bad fuel pressure regulator letting the fuel run back to the tank

Customer: replied 3 months ago.
Ok, where is located the fuel pressure regulator?
Expert:  jetskigreg replied 3 months ago.

Its at the back of the fuel rail and that fuel rail is none to easy to get to do u have access to ISIS international fleet support

Expert:  jetskigreg replied 3 months ago.

If not call ur local international dealer and give them last 8 of vin and tell them you need a print out of the fuel pressure regulator part schematic see if they will email or fax or jus go there and see if you can see it on fuel rail

Customer: replied 3 months ago.
nop, no access to ISIS international fleet suport
Customer: replied 3 months ago.
ok, ill call them. thx!!
Expert:  jetskigreg replied 3 months ago.

Sounds great let me know

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