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No fuel at injectors, 05 isuzu NPr 4HE1-XS, Yes. Opened top…

Customer Question
No fuel at injectors ...

No fuel at injectors

Mechanic's Assistant: What's the make/model/year of your truck? Engine type?

05 isuzu NPr 4HE1-XS

Mechanic's Assistant: Are you fixing your truck yourself? What have you tried so far?

Yes. Opened nut top of fuel filter, diesel present.

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

Novice mechanic

Submitted: 7 months ago.Category: Medium and Heavy Trucks
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Answered in 29 minutes by:
12/6/2017
Technician: Daniel Wilson,
 replied 7 months ago
Daniel Wilson
Category: Medium and Heavy Trucks
Satisfied Customers: 6,833
Experience: Owner at DJ Wilson
Verified

Hi my name is***** will be glad to help. Check engine light on andif so what fault codes are logged in the ECM memory?

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Customer reply replied 7 months ago
Hi Dan, don't have technology!Fuel at filter, no fuel at injector.
Air lock?
Can' identify any lever etc to manually bleed pump.
Was hoping you could show me in diagram nut/nuts I should open to release air?Peter
Technician: Daniel Wilson,
 replied 7 months ago

Hi Peter, Thanks for the update. I got called out on the road so sorry for the delay. Be sure you have power to the fuel shutoff solenoid with the key on and it is functioning to open the injection pump to fuel on position.Next to the valve cover at the injectors crack loose the high pressure lines just enough so they will leak while cranking the engine over.... Crank it over and a strong pump will have spurts of fuel like a spray and a weak pump will have little to no fuel delivery indicating a need for a replacement or rebuilt pump. If it is getting good delivery, tighten the lines and then try to start after bleeding the remaining air. Let me know the results. We can follow up as needed.

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Technician: Daniel Wilson,
 replied 6 months ago

Hi, Did you get this resolved? Please take a moment to rate as that is how the site credits my time helping on the site or let me know if you need more help. 5 star and bonuses are always greatly appreciated.

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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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