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post #1 of 4 Old 01-31-2013, 05:13 PM Thread Starter
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Where to start?

After my 03 f350 6.0 sits over night, it takes cranking it several times before it builds oil pressure to fire injectors. Starting "teardown" this weekend. Any ideas on where to start looking for problem. Thanks
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post #2 of 4 Old 01-31-2013, 06:22 PM
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Re: Where to start?

Oil drain valve in filter housing. 03 has the small oil rails so it could be one of the supply lines. Could also be a sticky IPR. What are your oil pressures low and high? Any codes at all? When it's running what's the IPR percentage?

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post #3 of 4 Old 01-31-2013, 06:54 PM
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DIAGNOSING A 6.0L HIGH PRESSURE PUMP!
This it a good test

Tom
2003 CCSB 4X4 6.0 Born on 5/03 Tuned by Vivian, 4" Turbo Back Exhaust, Edge CTS w/EGT, Coolant filter. ELC. fuel pressure gauge,

2002 SCLB 4X4 7.3 Stock
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post #4 of 4 Old 01-31-2013, 06:55 PM
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Re: Where to start?

I would suggest a monitor to help diagnose the problem. Diagnosing the problem prior to tearing it down is the only way to do it properly. You can try the hpop test....DIAGNOSING A 6.0L HIGH PRESSURE PUMP!
And google hpop air test also, pressurizing through the icp port.

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Unfortunately had to Sell my ......2004 KR CC SWB FX4 - Edge insight cts, blue spring upgrade, updated HFCM drain plug, XDP coolant filter, CAT EC-1 rated coolant, Custom Diesel EGR delete, CAT delete, Rotella T6

SEE MY OIL COOLER REPLACEMENT AND EGR DELETE - http://www.powerstroke.org/forum/gen...tml?highlight=
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