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How can I diagnose if the fuel system on a Hino FC 2002

Customer Question
How can I diagnose...

How can I diagnose if the fuel system on a Hino FC 2002 truck is sucking in air , motor is cutting out at low revs. Injectors and injection pump have been overhauled 6 months ago suspect lift pump , thankyou.

Mechanic's Assistant: What is the complete model and serial number of your machine?

Hino jhdfc3jllxxx10360

Mechanic's Assistant: Anything else you want the equipment mechanic to know before I connect you?

How to replace pump if problem

Submitted: 8 months ago.Category: Medium and Heavy Trucks
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Answered in 36 minutes by:
11/24/2017
Technician: Curtis B., Technician replied 8 months ago
Curtis B.
Curtis B., Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 31,466
Experience: Technician turned service manager on multiple lines of trucks and engines, used in industry.
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Welcome to JUST ANSWER heavy equipment. With years of experience, I look forward to doing my best to help.

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Technician: Curtis B., Technician replied 8 months ago

Engine should have a primer pump before the injection pump. Everything before the primer pump is the suction part of the fuel system and is the only place air can be sucked in. Everything after the primer is under pressure and would only show as a fuel leak, So you need to examine everything from the tank outlet , up to the primer pump.

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Technician: Curtis B., Technician replied 7 months ago

I see the question is still open?

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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