Notices
1994.5 - 1997 7.3L Power Stroke Diesel  

LPOP help...

Thread Tools
 
Search this Thread
 
Old Jul 29, 2010 | 06:51 AM
  #151  
F350-6's Avatar
F350-6
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Originally Posted by DZL JIM
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...
If it were excessive RTV, what good would filling the crank with kerosene do? This shop is just wasting his money.
 
Reply
Old Jul 29, 2010 | 08:33 AM
  #152  
Talyn's Avatar
Talyn
Hotshot
20 Year Member
Community Favorite
Joined: Oct 2003
Posts: 17,799
Likes: 104
From: Ashland City, TN
They are throwing parts. =\

Wow. If we were all rich, we could just have every guy from RRE with a PSD show up at the shop, along with us. and strong arm them guys till they fixed it right.

But were not all rich. =(
 
Reply
Old Jul 29, 2010 | 10:51 AM
  #153  
Brown Falcon's Avatar
Brown Falcon
Thread Starter
|
Hotshot
Joined: Jul 2008
Posts: 11,231
Likes: 130
From: Thomasville, GA
Originally Posted by MADVAN
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
I tried overfilling it and it still would not start. HPOP was still bone dry afterwards.
 
Reply
Old Jul 29, 2010 | 10:55 AM
  #154  
Brown Falcon's Avatar
Brown Falcon
Thread Starter
|
Hotshot
Joined: Jul 2008
Posts: 11,231
Likes: 130
From: Thomasville, GA
Well I just found out today that their diesel mechanic (the only one they have) is going on vacation until August 8th.

So even if they weren't going to "soak it" I wouldn't be getting work done on it for almost 2 weeks. I'm about ready to take it somewhere else.

I wish you guys could come and ask questions for me. I don't know enough about the internal technical workings and sensors and such to really know what to ask.


What I need is a list of specific questions to ask and then I can report the answers back to here. Could someone put a list together for me today? I want to go talk to them after I get off work...
 
Reply
Old Jul 29, 2010 | 11:45 AM
  #155  
MADVAN's Avatar
MADVAN
Postmaster
Joined: Feb 2004
Posts: 3,266
Likes: 0
From: Levittown
Originally Posted by Brown Falcon
I tried overfilling it and it still would not start. HPOP was still bone dry afterwards.
You would have also had to fill the HPOP for the test.
Google powerstroke deaeration valve. You will see tons of info.
The valve could be bad or unscrewed from the cover.
Your truck is a 95. Your ser# will tell you which cover you have.

Gen2-1824378C1 pictures from outdoors photos on webshots

I cannot see how it had a so called ---"a weak lpop" when tested. Now a new pump and no pressure.
Its all bs

Bill
 
Reply
Old Jul 29, 2010 | 12:42 PM
  #156  
Brown Falcon's Avatar
Brown Falcon
Thread Starter
|
Hotshot
Joined: Jul 2008
Posts: 11,231
Likes: 130
From: Thomasville, GA
I did fill the HPOP as well and it would try to start for a second and then it would be drained again.

I need a list of questions to ask the mechanic at the dealer this afternoon. This problem is a little above my understanding level here, so I'm just not sure what to ask.

I have decided that if they don't answer my questions to my satisfaction then I will be having my truck towed to Coastal Diesel Service. After talking to their service department they sound much more knowledgable, and they have received a lot of complaints and gotten a lot of vehicles that were sent to the dealer I have mine at first. Plus they are purely a diesel shop.
 
Reply
Old Jul 29, 2010 | 01:50 PM
  #157  
Skip1970's Avatar
Skip1970
Hotshot
Joined: Nov 2008
Posts: 15,014
Likes: 35
From: Semper Fi tell I die!
trowing parts, guessing, money wasting, next thing you know your bill will be more then your trucks worth, then when you refuse to pay, they will mechanic lean on it, and it will become their shop truck.
 
Reply
Old Jul 29, 2010 | 02:48 PM
  #158  
Hussler's Avatar
Hussler
Postmaster
Joined: Sep 2007
Posts: 4,195
Likes: 6
From: Medford Oregon
Club FTE Silver Member

Originally Posted by MADVAN
You would have also had to fill the HPOP for the test.
Google powerstroke deaeration valve. You will see tons of info.
The valve could be bad or unscrewed from the cover.
Your truck is a 95. Your ser# will tell you which cover you have.

Gen2-1824378C1 pictures from outdoors photos on webshots

I cannot see how it had a so called ---"a weak lpop" when tested. Now a new pump and no pressure.
Its all bs

Bill
Here is a site with picture of the valve and cover. Guy had same issue as you. 96 7.3 No Oil Pressure - Diesel Bombers

Ask mechanic if this could be your problem ..
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

 Verdad Gallardo
story-1

Top 10 Fords at 2026 Carlisle Ford Nationals

 Joe Kucinski
story-2

3 Best / 3 Worst Parts of Modern Ford Ownership

 Brett Foote
story-3

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

 Pouria Savadkouei
story-4

Every 2026 Ford Engine Explained

 Brett Foote
story-5

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-6

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-7

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
story-8

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-9

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
Old Jul 29, 2010 | 03:45 PM
  #159  
chris64's Avatar
chris64
Senior User
Joined: Mar 2009
Posts: 291
Likes: 0
Brownie, it looks like you have the same problem as I did. If that valve lost the ball bearing inside, you'll never get oil up to the HPOP. Too bad, cause you need to pull the motor to get the oil pan& front cover off, and reseal oil pan correctly. Good luck and let me know if I can help
Thank you, C
 
Reply
Old Jul 29, 2010 | 07:04 PM
  #160  
F350-6's Avatar
F350-6
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Originally Posted by Brown Falcon
I did fill the HPOP as well and it would try to start for a second and then it would be drained again.

I need a list of questions to ask the mechanic at the dealer this afternoon. This problem is a little above my understanding level here, so I'm just not sure what to ask.

I have decided that if they don't answer my questions to my satisfaction then I will be having my truck towed to Coastal Diesel Service. After talking to their service department they sound much more knowledgable, and they have received a lot of complaints and gotten a lot of vehicles that were sent to the dealer I have mine at first. Plus they are purely a diesel shop.
You're getting close to doing the right thing. Just go ahead and get it towed.

If you want to ask questions, ask what hole they used to read your oil pressure. If they say ICP sensor, kick them in the shin.

More importantly, ask them if their new LPOP is bad or if they are trying to charge you to install a part you never did need. Ask them if they measured clearance to determine the amount of wear in the old LPOP. Then ask what they measured it at.

Click Me go to page 5 figure 10. Should be a max clearance of .003" I'm guessing they didn't check the old pump, and may not even know how to do it. Ask them if they're willing to put their recommendations in writing about filling the crank case with kerosene to get rid of the silicone like stuff that may be blocking the pick up tube.

Or if you're tired of them, just tell them you're getting it towed out since the mechanic is leaving for a couple of weeks. Since the new pump is in, and the old pump is obviously old, I'd offer to pay for parts, but not labor since none of this was obviously needed.

Then you need to call Coastal diesel and ask them what discount you get it you allow them to make the towing arrangements so the driver can walk in and loudly say he's there to pick up the truck and tow it to Coastal since the dealer can't figure out how to fix it.

Now if you're not going to fix this yourself, stop farting around with it and just get it out of the idiot shop. Let the independent shop look at it. Mention the items suggested here and then go spend time playing with your new baby.
 
Reply
Old Jul 29, 2010 | 07:17 PM
  #161  
Action4478's Avatar
Action4478
Hotshot
Joined: Aug 2006
Posts: 10,764
Likes: 39
Originally Posted by George D.
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.
Originally Posted by F350-6
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.
Originally Posted by F350-6
You're getting close to doing the right thing. Just go ahead and get it towed.

If you want to ask questions, ask what hole they used to read your oil pressure. If they say ICP sensor, kick them in the shin.

More importantly, ask them if their new LPOP is bad or if they are trying to charge you to install a part you never did need. Ask them if they measured clearance to determine the amount of wear in the old LPOP. Then ask what they measured it at.

Click Me go to page 5 figure 10. Should be a max clearance of .003" I'm guessing they didn't check the old pump, and may not even know how to do it. Ask them if they're willing to put their recommendations in writing about filling the crank case with kerosene to get rid of the silicone like stuff that may be blocking the pick up tube.

Or if you're tired of them, just tell them you're getting it towed out since the mechanic is leaving for a couple of weeks. Since the new pump is in, and the old pump is obviously old, I'd offer to pay for parts, but not labor since none of this was obviously needed.

Then you need to call Coastal diesel and ask them what discount you get it you allow them to make the towing arrangements so the driver can walk in and loudly say he's there to pick up the truck and tow it to Coastal since the dealer can't figure out how to fix it.

Now if you're not going to fix this yourself, stop farting around with it and just get it out of the idiot shop. Let the independent shop look at it. Mention the items suggested here and then go spend time playing with your new baby.
Settle down Chris ...






I agree on the LPOP.. The damage will be visually verifiable.. & scrap the kerosene idea...
 
Reply
Old Jul 29, 2010 | 07:29 PM
  #162  
Skip1970's Avatar
Skip1970
Hotshot
Joined: Nov 2008
Posts: 15,014
Likes: 35
From: Semper Fi tell I die!
those morons are gonna f something up worse then it is, either go in there and lite the place up, or get it towed out to save whats left before its to late, ive delt with morons like this before.
 
Reply
Old Jul 29, 2010 | 08:09 PM
  #163  
Brown Falcon's Avatar
Brown Falcon
Thread Starter
|
Hotshot
Joined: Jul 2008
Posts: 11,231
Likes: 130
From: Thomasville, GA
They didn't do the kerosene idea. I got in there and stopped them before they could. I was told by the independant shop that the mechanic at the dealer doesn't know what he's doing and they get a lot of business from unhappy customers of theirs.

I will definately be asking them those questions Chris.

The truck will be towed tomorrow or this weekend to the other shop.
 
Reply
Old Jul 29, 2010 | 08:40 PM
  #164  
Brown Falcon's Avatar
Brown Falcon
Thread Starter
|
Hotshot
Joined: Jul 2008
Posts: 11,231
Likes: 130
From: Thomasville, GA
Originally Posted by F350-6

If you want to ask questions, ask what hole they used to read your oil pressure. If they say ICP sensor, kick them in the shin.
Where and how should the LPOP pressure be measured? What kinda numbers should it be getting?
 
Reply
Old Jul 29, 2010 | 08:55 PM
  #165  
F350-6's Avatar
F350-6
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Originally Posted by Brown Falcon
Where and how should the LPOP pressure be measured? What kinda numbers should it be getting?
EOP sensor hole, HPOP reservoir, or someplace like that. Oil pressure at idle should be somewhere around 10 psi. WOT would be in the 40 - 70 range I believe.
 
Reply



All times are GMT -5. The time now is 05:58 AM.

story-0
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-1
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-2
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-3
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-4
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-5
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-6
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-7
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-8
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-9
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE