Mechanics

ISUZU NPR ENGINE PROBLEM

2011 Isuzu NPR • 45,000 miles

How do I bleed the fuel system after replacing the fuel filter cartridge. I have the bleeder open & pumping primer on top of water seperator does not seem to be doing anything.
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Guest
December 10, 2012.




Sometimes the fuel can back flow from the delivery hose and this would result in excessive air in the system and not allowing you to use the manual pump to pump the fuel back up. Remove the fule filler cap and apply low air pressure to force the fuel forward to the filter.
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KHLow2008
Dec 10, 2012.
If you are not able to do it, remove the filter, fillit up with clean diesel and reinstall, Start the engine and let it self bleed. Try keeping the throttle open slitghlty or reving it to keep engine from stalling until it stabilises.

KHLow2008
Dec 10, 2012.

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