Help needed ! how to air test hpop 03` - Ford Powerstroke Diesel Forum
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  #1  
Old 03-04-2013, 03:16 PM
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Help needed ! how to air test hpop 03`

So where do you plug your airline to test hpop
on a 6.0 03`

thanks
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Old 03-04-2013, 03:46 PM
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after a 3 weeks truck haven't start (vacation)

1st morning: start on first try..with rough idle ..after warm up everything was ok !

2nd morning: COLD start.... well no start ! battery full , full fuel...check
oil level..check , ficm tested ..check ,
removed oil filter...cranked engine for 1/2 hour !!! lol ....
oil level didn't raised
unplugged ICP sensor.... nothing

****** so everything point in same direction >>>> HPOP
but it's a 2003... doesn't have ICP sensor on valve cover
to plug air for testing
should I remove valve cover...remove plug on oil rail..and test...or simply remove turbo , pull IPR valve..check screen...and try to plug air on icp sensor hole?

**** last and or odd question..... I changed oil before my vacation
and replace with MOBIL 5w30 synthetic oil with motorcraft filter
...please someone tell me ...could be reason no oil pressure (oil to thin...when cold )
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Old 03-04-2013, 05:29 PM
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Did you hold the drainback valve closed while cranking with the oil filter out? Was the old oil filter a OE filter? Can you get ICP readings? Easyest way is to pull a valve cover and removed the oil line to the rail and air test there. Of course with the IPR closed.
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Old 03-04-2013, 05:34 PM
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Thanks

Tried both way ...without touching it...and pushing on w-screwdriver...no difference
Oil filter..again both are and was motorcraft
Nothing to test icp
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Old 03-04-2013, 05:38 PM
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It will be hard with no scan tool. So this started after you changed the oil? No issues before oil change?
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Old 03-04-2013, 05:46 PM
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Well only have my sct lw..might try to borrow one tomorrow.... and other issue? Other than...egr cooler ,head gasket, ficm, turbo twice, alternator...batterysss.... no other issue ! Lol
Only routine maintenance on a pcs of...f.ord..
Joke aside love my truck !!!!
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Old 03-04-2013, 05:53 PM
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I would say with the oil not filling the filter housing with the valve pressed you have a low pressure issue. You could try to remove the pressure relife valve for the oil pump and inspect it. It is on the bottom of the motor right behinde the crankshaft pulley and requires a 12mm allen key to remove. I just did head gaskets on a truck about a month ago and the valve stuck open one me after 4 diffrent road tests. Caused the same issue.
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Old 03-04-2013, 05:58 PM
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By any chance...can it be done without removing pulley?
What should I look att...with relief valve in hand?
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Old 03-04-2013, 06:05 PM
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Pulley stays in place should take 10min to pull the valve. There is the allen plug with an o-ring then a long spring and the valve. The valve kinda looks like a lifter but is hollow and has holes in the side for oil to pass through. The valve is what you need to look at. If the sides are scared then I would replace it. They will look like scratches going down the side of the valve. If you pull the plug and it springs out hard the valve was stuck. The valve is cheap if I remember correctly.

Edit: also you may need a screwdriver to pull the valve out. It should slide out but sometimes the oil holds it in.
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Old 03-04-2013, 06:12 PM
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When you had the truck running...did you shut it off at any time and did it fire back up hot?
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