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ricky g
Active Member

46 Posts
Posted - 09/28/2018 :  05:25:32 AM  Show Profile  Visit ricky g's Homepage  Reply with Quote
Good morning , replacing a High Pressure Fuel Pump on a 2009 International PB105 school bus with a MAXXFORCE Engine , wondering if there’s any timing procedures with the pump or engine when doing this job ,Thank You .

wrenchsnapper
Active Member

27 Posts
Posted - 09/29/2018 :  07:16:56 AM  Show Profile  Visit wrenchsnapper's Homepage  Reply with Quote
Nope its just a pressure pump. May I ask how you determined the pump was bad ? Codes for high pressure when commanded low or stalling ?
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ricky g
Active Member

46 Posts
Posted - 09/29/2018 :  08:09:42 AM  Show Profile  Visit ricky g's Homepage  Reply with Quote
Yes , had codes for HP pressure fuel pump and had low power and stalling
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Cal Mc
Advanced Member

303 Posts
Posted - 10/02/2018 :  06:44:21 AM  Show Profile  Visit Cal Mc's Homepage  Reply with Quote
Our 2010 Maxforce DT engines do not use a high pressure fuel pump that typical on a common rail fuel system.They do use a high pressure oil pump. The high pressure fuel pump on the 2008 Cat C7 common rail engines is timed and will not run properly unless timed.
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