LPOP help...
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Hotshot
Joined: Jul 2008
Posts: 11,231
Likes: 130
From: Thomasville, GA
Ok, bad news.
They installed the new LPOP, still no pressure. I am waiting to here back from the mechanic where he is testing the pressure right now. The service manager made it sound like he was testing it at the oil rails??? That wouldn't give pressure from the LPOP though.
Now they are talking about something being "clogged" and not letting oil get to the LPOP. They want to pull the engine and take the pan off.
If they are checking the pressure at the oil rails and getting nothing that could be injector o-rings causing it to bleed off correct??? I just want to be positive that the injector o-rings could cause this problem. If so I am going to get my truck back and replace the injector o-rings again. I had two injectors out the day that the truck died and they could have gotten damaged.
They installed the new LPOP, still no pressure. I am waiting to here back from the mechanic where he is testing the pressure right now. The service manager made it sound like he was testing it at the oil rails??? That wouldn't give pressure from the LPOP though.
Now they are talking about something being "clogged" and not letting oil get to the LPOP. They want to pull the engine and take the pan off.
If they are checking the pressure at the oil rails and getting nothing that could be injector o-rings causing it to bleed off correct??? I just want to be positive that the injector o-rings could cause this problem. If so I am going to get my truck back and replace the injector o-rings again. I had two injectors out the day that the truck died and they could have gotten damaged.
Thread Starter
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Hotshot
Joined: Jul 2008
Posts: 11,231
Likes: 130
From: Thomasville, GA
Ok. They checked the pressure at the sender and are getting no pressure. There is also no oil getting to the LPOP. They tried priming the LPOP and still no pressure...
They said that when they pulled the old LPOP out there was a gooey silicone like substance inside the housing making them think that there is something clogging up the pickup tube.
They are going to try dumping the oil and filling the crankcase with kerosene to see if it will disolve the gunk and break it up.
If that doesn't work they want to pull the engine and check inside the pan.
What was originally a $1,300 repair I don't even want to know what it will be now...
They said that when they pulled the old LPOP out there was a gooey silicone like substance inside the housing making them think that there is something clogging up the pickup tube.
They are going to try dumping the oil and filling the crankcase with kerosene to see if it will disolve the gunk and break it up.
If that doesn't work they want to pull the engine and check inside the pan.
What was originally a $1,300 repair I don't even want to know what it will be now...
Thread Starter
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Hotshot
Joined: Jul 2008
Posts: 11,231
Likes: 130
From: Thomasville, GA
That's what they said. They said that the LPOP isn't getting oil to it, so they suspect a cracked pickup tube or clogged pick-up tube.
They found gunk inside the oil pump housing making them suspect something clogging it.
So they are going to try soaking it in kerosene to see if it will disolve whatever is in there.
They found gunk inside the oil pump housing making them suspect something clogging it.
So they are going to try soaking it in kerosene to see if it will disolve whatever is in there.
Thread Starter
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Hotshot
Joined: Jul 2008
Posts: 11,231
Likes: 130
From: Thomasville, GA
I'll suggest that...
I'm just really stressed and frustrated right now. Between the truck and the news that I'm getting medically separated from the Marine Corps within the next few months... So now I"m going to have to move and wont' have a job.
I'm just really stressed and frustrated right now. Between the truck and the news that I'm getting medically separated from the Marine Corps within the next few months... So now I"m going to have to move and wont' have a job.
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Joined: Sep 2003
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From: North East Ohio
Definitely sounds like pre-injector problem.
If they suspect junk or pick-up tube issue, I'd sure like to try blowing air or sticking some wire or something from the LPOP mount into the pick-up tube and see what's there.
I'd worry about trying to disolve what's there. Then what will happen to the junk?
Evan, just so you know I had another customer with some issues after injector install, his truck just up and quit. Tried everything he could think of till he replaced all 8 o-rings again and truck runs great now. If the HPOP res would hold oil but the truck still won't run, I'd say try o-rings, but that doesn't sound like your problem.
Good luck.
If they suspect junk or pick-up tube issue, I'd sure like to try blowing air or sticking some wire or something from the LPOP mount into the pick-up tube and see what's there.
I'd worry about trying to disolve what's there. Then what will happen to the junk?
Evan, just so you know I had another customer with some issues after injector install, his truck just up and quit. Tried everything he could think of till he replaced all 8 o-rings again and truck runs great now. If the HPOP res would hold oil but the truck still won't run, I'd say try o-rings, but that doesn't sound like your problem.
Good luck.
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Joined: Sep 2007
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From: Las vegas
That realy sucks man just remember once a Marine always a Marine.
I would defenatly get my truck out of there if they are checking it at the sender well never heard of a oil sender. If its a typo and you meant sensor that would not rule out the deairation valve but since they said it had pressure not a likely cause. injector Orings would cuase it not to start but shouldn't afect the LP oil system. The big thing is no competent mechanic would remove the LP oil pump find junk in it and just replace it.
I would defenatly get my truck out of there if they are checking it at the sender well never heard of a oil sender. If its a typo and you meant sensor that would not rule out the deairation valve but since they said it had pressure not a likely cause. injector Orings would cuase it not to start but shouldn't afect the LP oil system. The big thing is no competent mechanic would remove the LP oil pump find junk in it and just replace it.
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From: Las vegas
You know the stuff they say doesn't add up if it had some oil presure it should be able to fill the HP oil resivor and atleast atempt to start. If I had to take a SWAG at it I would say your orings took a dump they were lost trying to diagnose it and found the oil presure was a bit low due to normal wear they replaced the pump forgot to or didn't know to lube the new pump befor they put it in they burt up the new pumpcranking it dry and now are trying to cover there asses. why would it be pumping what ever was in there befor and now be unable to.
Hotshot
Joined: Aug 2006
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You know the stuff they say doesn't add up if it had some oil presure it should be able to fill the HP oil resivor and atleast atempt to start. If I had to take a SWAG at it I would say your orings took a dump they were lost trying to diagnose it and found the oil presure was a bit low due to normal wear they replaced the pump forgot to or didn't know to lube the new pump befor they put it in they burt up the new pumpcranking it dry and now are trying to cover there asses. why would it be pumping what ever was in there befor and now be unable to.
Post Fiend
Joined: Mar 2007
Posts: 26,966
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From: Texas
If they think you've got a slimy mess floating around in your oil, then have them pull the oil filter and cut it open to see how plugged the filter is. Maybe send an oil sample off to blackstone. If there's enough junk in the oil pan to plug the pick up tube, then your injectors should be shot too. If the pick up tube is cracked, have them over-fill the crank case with oil and jack up the back end. When the oil level in the pan raises above the crack, the truck should start.
If I were you I'd start asking some very specific questions and demanding some very specific answers. Start by determining where they are reading LPO from. If they have been reading HPO numbers, ask them if they blocked off one head at a time to isolate which one has the problem. If your problem is low ICP, it could be injector o-rings.
Hotshot
Joined: Aug 2006
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They're just throwing parts at it hoping to get lucky. I'm starting to think they checked oil pressure at the ICP and determined you needed a new LPOP. Tell them to remove the inspection plug off the HPOP reservoir and crank the motor. If the pick up tube is really clogged, then it won't make a mess all over their shop.
If they think you've got a slimy mess floating around in your oil, then have them pull the oil filter and cut it open to see how plugged the filter is. Maybe send an oil sample off to blackstone. If there's enough junk in the oil pan to plug the pick up tube, then your injectors should be shot too. If the pick up tube is cracked, have them over-fill the crank case with oil and jack up the back end. When the oil level in the pan raises above the crack, the truck should start.
If I were you I'd start asking some very specific questions and demanding some very specific answers. Start by determining where they are reading LPO from. If they have been reading HPO numbers, ask them if they blocked off one head at a time to isolate which one has the problem. If your problem is low ICP, it could be injector o-rings.
If they think you've got a slimy mess floating around in your oil, then have them pull the oil filter and cut it open to see how plugged the filter is. Maybe send an oil sample off to blackstone. If there's enough junk in the oil pan to plug the pick up tube, then your injectors should be shot too. If the pick up tube is cracked, have them over-fill the crank case with oil and jack up the back end. When the oil level in the pan raises above the crack, the truck should start.
If I were you I'd start asking some very specific questions and demanding some very specific answers. Start by determining where they are reading LPO from. If they have been reading HPO numbers, ask them if they blocked off one head at a time to isolate which one has the problem. If your problem is low ICP, it could be injector o-rings.
I'm starting to think they checked oil pressure at the ICP and determined you needed a new LPOP
Postmaster
Joined: Feb 2004
Posts: 3,266
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From: Levittown
X2 Chris
Next words will be about a reman dropin.
Just overfill the crankcase with 2 qts of oil.
You can also jack the back of the truck up.
Both above will submerge the pickup for the oil pump.(overfill is a better test)
If the motor starts, the issue is crack at the weld on the pickup bracket
or the flange of the pickup to the pump. The flange also has a gasket.
This dealer dont know chit about a PSD. Nor do they want to open a manual.
The test above is right out of the dealer's troubleshooting/diag manual!
BTW- The only way i have seen pickup tubes clogg is when the motor
has nylon teeth on a cam gear. The PSD does not have this.
.02
Bill
Next words will be about a reman dropin.
Just overfill the crankcase with 2 qts of oil.
You can also jack the back of the truck up.
Both above will submerge the pickup for the oil pump.(overfill is a better test)
If the motor starts, the issue is crack at the weld on the pickup bracket
or the flange of the pickup to the pump. The flange also has a gasket.
This dealer dont know chit about a PSD. Nor do they want to open a manual.
The test above is right out of the dealer's troubleshooting/diag manual!
BTW- The only way i have seen pickup tubes clogg is when the motor
has nylon teeth on a cam gear. The PSD does not have this.
.02
Bill
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Joined: Sep 2003
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From: North East Ohio
Even if there was some not-so-correct repairs done to the motor at some point where they used an excess amount of RTV? I'd think it's possible. I've seen some weird repairs on my old, used trucks over the years...
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'96 7.3 F-350 Reg Cab 4x4 - bought new.
'04 6.0 E-350 custom 4x4
'08 6.4 F-550 Reg Cab 6 spd 4x4
'17 6.7 F-250 KR ccsb 4x4
'96 7.3 F-350 Reg Cab 4x4 - bought new.
'04 6.0 E-350 custom 4x4
'08 6.4 F-550 Reg Cab 6 spd 4x4
'17 6.7 F-250 KR ccsb 4x4