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Have a 2012 mack cxu613 mp8. Having trouble starting. Had…

Have a 2012 mack cxu613...
Have a 2012 mack cxu613 mp8. Having trouble starting. Had been priming filter by pushing the plunger on filter housing for 10-15 minutes it would eventually crank. Taken off line going to pressure release valve and there isn't any fuel coming through the line when priming or turning engine over.
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Answered in 6 minutes by:
12/12/2020
Technician: Mike Mcmillan, Shop Foreman/Triage Tech replied 1 year ago
Mike Mcmillan
Mike Mcmillan, Shop Foreman/Triage Tech
Category: Medium and Heavy Trucks
Satisfied Customers: 6,618
Experience: Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel
Verified
Hello and thank you for using Just Answer. My name is ***** ***** I’d like to try and help. I am sorry that you are having issues with your truck. I know this can be frustrating. Please allow me a few moments to look over your question and I will be right back with you. Thank you
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Technician: Mike Mcmillan, Shop Foreman/Triage Tech replied 1 year ago
On your issue. If you remove the line at the front of the head with the way the fuel system operates you are sucking a large amount of air back into the system. This is a minimal return system. I would try to get the unit primed out of a bucket and isolate a fuel delivery issue on the truck side. If that does not make a difference then you may have a bad fuel pump. I hope this helps you with your question. Thank you
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Customer reply replied 1 year ago
Not understanding to prime out of a bucket. How is this process performed?
Technician: Mike Mcmillan, Shop Foreman/Triage Tech replied 1 year ago
Make a line up to plug into the inlet at the rear of the filter housing and run it into a bucket of clean fuel
Mike Mcmillan
Mike Mcmillan, Shop Foreman/Triage Tech
Category: Medium and Heavy Trucks
Satisfied Customers: 6,618
Experience: Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel
Verified
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Technician: Mike Mcmillan, Shop Foreman/Triage Tech replied 1 year ago
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Mike Mcmillan
Mike Mcmillan
Mike Mcmillan, Shop Foreman/Triage Tech
Category: Medium and Heavy Trucks
Satisfied Customers: 6,618
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Experience: Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel

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