Pt_Ranger_v8
A dministrator
2002 2wd excursion, 330K miles, original everything, reman hpop @70K miles (260 on that)
Truck a little sluggish, with mushy pedal after ~8 miles driving.
checked the oil, it's dirty (due for change) and at the bottom of the hash marks.
Added about 2 qts of oil, started back up, drove another 4-5 miles, and it shut off, no restart.
Got it home, started troubleshooting.
ipr% starts @14.85%, climbs to 65% during cranking
oil pressure stays around 300psi during cranking
Rpms are above 200
volts are good
Check hpop oil level - oil is within 1" from top
Replaced ipr - no changes
pulled ipr sensor plug, scanner shows 2500psi, still no firing
Deadheaded hpop, I get surging pressure to 1-1.2k psi - but it's not constant - it bounces between 1k and zero.
Put 12v to the ipr, bypassing the pcm, no change.
Pulled valve covers, looking for leaky injector o-rings, I don't see any oil moving at all.
What else is left to check? I suspect bad hpop, but when I spoke to cncfab, he suspected bad injectors/orings. My testing doesn't seem to support this.
Is it posaible to have a bad motorcraft ipr, from the box? Anyway to test that?
Truck a little sluggish, with mushy pedal after ~8 miles driving.
checked the oil, it's dirty (due for change) and at the bottom of the hash marks.
Added about 2 qts of oil, started back up, drove another 4-5 miles, and it shut off, no restart.
Got it home, started troubleshooting.
ipr% starts @14.85%, climbs to 65% during cranking
oil pressure stays around 300psi during cranking
Rpms are above 200
volts are good
Check hpop oil level - oil is within 1" from top
Replaced ipr - no changes
pulled ipr sensor plug, scanner shows 2500psi, still no firing
Deadheaded hpop, I get surging pressure to 1-1.2k psi - but it's not constant - it bounces between 1k and zero.
Put 12v to the ipr, bypassing the pcm, no change.
Pulled valve covers, looking for leaky injector o-rings, I don't see any oil moving at all.
What else is left to check? I suspect bad hpop, but when I spoke to cncfab, he suspected bad injectors/orings. My testing doesn't seem to support this.
Is it posaible to have a bad motorcraft ipr, from the box? Anyway to test that?