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Old 01-08-2019, 09:29 AM   #1
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5.9 ISB Filter Changes

I have a 98' HRE 37' with the 5.9isb and have a couple questions about a fuel and fuel/water filter change. I know you have to pre fill the new filters with diesel and have read that there can be problems getting it started again. I have read to turn the key up to 15 times for 10/15 seconds(not to the start position) to get the fuel back into the fuel line and put the petal to the floor until it starts. I have also read if you get air into the fuel line that can really cause problems getting it started. I have worker on my cars for years but nothing with diesels so any help would be appreciated.
Thanks,
Jim & Diane 98'HRE 37'
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Old 01-08-2019, 10:39 AM   #2
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With my truck, after changing out filter, if you turn the key to on position, and bump the starter, leaving the key in the on position, the lift pump will run for 30 seconds, refilling the filter......might do it 3 times just to make sure.....starts every time...there is a drain on the filter housing that when the filter is full, allows to drain water and diesel.....If in doubt, open it for a second......also on top of filter housing, there's 2 1/8" pipe plugs...one on the inlet side, and one on the outlet side....that one you could loosen and when fuel appears, tighten it up and start the engine..
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Old 01-08-2019, 12:01 PM   #3
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If you do get air in the injector lines you have to loosen 3 -4 injector lines with 3/4” wrench and crank motor till fuel comes out each one then tighten all and it should start rough then smooth out. Avoid this at all costs.

And as bob said i use the fitting on the top of filter outlet and to bleed air i screw on a fitting with hose to a container while running lift pump to make sure all air is out of system the air needs a place to go.
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Old 01-08-2019, 12:04 PM   #4
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And i dont prefill filters with fuel. And write the date changed on filter with a sharpie.
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