2003 6.0 HPOP test
#1
01-15-2018, 03:04 PM
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2003 6.0 HPOP test
2003 6.0 170,000 miles.
Ipr test tool 120lb of shop air
Ipr test tool 120lb of shop air
Longer crank then normal when coldNo start when hot
Ive just been having hot start issues. Crank time when cold is a bit longer then usual. When I drive somewhere and I turn off the truck it won't restart until cold. Just started happening. I have the Ipr air test tool. Put air to the Ipr give it a few seconds I can hear the air pulsing loosening 5 lbs each time. After a minute or two I can hear gurgling & air out of the oil filter cap area, then some air escapes out of both valve covers. i unhook the air give it a minute (reading forums)
I hook air back up through the Ipr using the tool and it just pulses loosing 5 lb, no gurgling out of oil fill cap but I hear air pulsing out of both valve covers and some out of the oil fill cap ( with the cap off & filter out, with/without pressing the plastic bypass) Thinking bad HPOP and maybe leak from injector area? OrBad HPOP leaking air to crankcase then back up into valve cover area?OrLeak from valve cover area cause no start when hot (faint air leak from both valve covers)?I just read that the gurgling out of oil filter cap area is a definite HPOP leak. But I didn't get it to gurgle the second time I put air to it. Kind stumped. Any advice thanks
Ive just been having hot start issues. Crank time when cold is a bit longer then usual. When I drive somewhere and I turn off the truck it won't restart until cold. Just started happening. I have the Ipr air test tool. Put air to the Ipr give it a few seconds I can hear the air pulsing loosening 5 lbs each time. After a minute or two I can hear gurgling & air out of the oil filter cap area, then some air escapes out of both valve covers. i unhook the air give it a minute (reading forums)
I hook air back up through the Ipr using the tool and it just pulses loosing 5 lb, no gurgling out of oil fill cap but I hear air pulsing out of both valve covers and some out of the oil fill cap ( with the cap off & filter out, with/without pressing the plastic bypass) Thinking bad HPOP and maybe leak from injector area? OrBad HPOP leaking air to crankcase then back up into valve cover area?OrLeak from valve cover area cause no start when hot (faint air leak from both valve covers)?I just read that the gurgling out of oil filter cap area is a definite HPOP leak. But I didn't get it to gurgle the second time I put air to it. Kind stumped. Any advice thanks
#2
01-15-2018, 09:15 PM
Postmaster
Park it nose down overnight, see if your cold start time improves. The theory is that if the pump shaft seal is leaking down, it won't lose as much oil parked nose down since the gear side of the seal is at the back of the engine.
If I were a betting man I would say the HPOP, might even be a combination of that and top seals one or more injectors.
A leaking HPOP sound will tend to migrate to the valve covers.
You may not have got the gurgle the second time if you displaced all the oil in the pump.
If I were a betting man I would say the HPOP, might even be a combination of that and top seals one or more injectors.
A leaking HPOP sound will tend to migrate to the valve covers.
You may not have got the gurgle the second time if you displaced all the oil in the pump.
#3
01-16-2018, 10:14 PM
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#4
01-17-2018, 07:16 AM
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That's very true and kind of where I was suggesting this might go. You might have a bad o-ring or d-ring back there on the pump but the odds are it's the pump.
Did you try the nose down overnight trick? If it starts quicker cold then it further narrows down the culprit.
Many here will suggest you replace the HPOP with the Adrenaline..it's worth the extra money for the piece of mind. Many threads here of OEM remans being bad out of the box and even one case of two in a row. That is a lot of work to find out you got a bad reman.
Did you try the nose down overnight trick? If it starts quicker cold then it further narrows down the culprit.
Many here will suggest you replace the HPOP with the Adrenaline..it's worth the extra money for the piece of mind. Many threads here of OEM remans being bad out of the box and even one case of two in a row. That is a lot of work to find out you got a bad reman.
#5
01-17-2018, 11:12 AM
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I didn't try to move it out of the garage last night. Just ordered parts for it and going to tear it down and see what I find. I've tested it three separate times and came to the same conclusion. I'm debating on updating the HPOP cover on my 2003, but it cost $560 for it. Not sure if it's worth it or not to save the j-tube from rubbing the cover. Not sure how bad of an issue it is.
#6
01-17-2018, 03:18 PM
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01-17-2018, 05:06 PM
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01-17-2018, 07:55 PM
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#15
01-23-2018, 04:14 PM
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