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Old Sep 6, 2007 | 06:32 AM
  #16  
Diesel Dave 04's Avatar
Diesel Dave 04
Cross-Country
Joined: Aug 2007
Posts: 69
Likes: 10
From: Pottstown Pa
Originally Posted by Beast01
The res was at about 3/4 from the top last time I checked. Unfortunately I dont have the skill or the tools to check the pressure in that fashion. It makes great sense what you are saying and I definately understand the concept.

Both batteries were replaced 3 weeks ago w/ optima reds.

Here is a question. Would a bad IPR cause the truck not to start? Also would a bad IPR cause the pump pressure to read at 150 psi or is there aq seperate test that can be run to verify that the pump itself is bad?

I ask that because when I asked if the IPR was bad the service advisor said that he did not know and that the tech said that the pump needed to be replaced and we should go ahead and replace the ICP too.
Yes A bad IPR will cause 150 PSI REPLACE THE IPR. If it were an injector droping oil you would be reading close to 300-350 psi. I would say replace the IPR.
 
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Old Sep 6, 2007 | 07:57 AM
  #17  
zx250's Avatar
zx250
Of the next Riffraff East
Joined: Oct 2004
Posts: 8,679
Likes: 2
From: Concord NC
Club FTE Gold Member
When My IPR was failing the engine got to where it would not start or I guess I should say, would not start without holding the accel. pedal all the way to the floor. I know that don't make sense because the pedal works off a wire. But for a couple of times before I got it replaced, that was the only trick I could do to start it, and even then, it ran very rough. It hardly had enough power to get it going. After I rebuilt the IPR, it ran good for about a hundred miles then started doing the same thing.
I don't know what holding the pedal to the floor did and I understand that being wire fed, it shouldn't have made a differance, but it did.
 
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Old Sep 6, 2007 | 07:59 AM
  #18  
fbilly420's Avatar
fbilly420
Senior User
Joined: Dec 2006
Posts: 307
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From: Tooele, Utah
I would say that the dealer really wants your money. If they want you to replace the hpop and the two sensors that control it that would clear it up. But to me that sounds like they dont have a clue and are just throwing parts at it. My .02
Billy
 
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Old Sep 6, 2007 | 08:07 AM
  #19  
Diesel Dave 04's Avatar
Diesel Dave 04
Cross-Country
Joined: Aug 2007
Posts: 69
Likes: 10
From: Pottstown Pa
Originally Posted by zx250
When My IPR was failing the engine got to where it would not start or I guess I should say, would not start without holding the accel. pedal all the way to the floor. I know that don't make sense because the pedal works off a wire. But for a couple of times before I got it replaced, that was the only trick I could do to start it, and even then, it ran very rough. It hardly had enough power to get it going. After I rebuilt the IPR, it ran good for about a hundred miles then started doing the same thing.
I don't know what holding the pedal to the floor did and I understand that being wire fed, it shouldn't have made a differance, but it did.
By holding the Pedal To the floor It would camand a High Duty cycle to the IPR the high duty cycle would be trying to hold the IPR shut so no oil would bypass you would get max pressure even if it was only 700 Psi it would be enough to start.
 
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Old Sep 6, 2007 | 08:13 AM
  #20  
zx250's Avatar
zx250
Of the next Riffraff East
Joined: Oct 2004
Posts: 8,679
Likes: 2
From: Concord NC
Club FTE Gold Member
Originally Posted by Diesel Dave 04
By holding the Pedal To the floor It would camand a High Duty cycle to the IPR the high duty cycle would be trying to hold the IPR shut so no oil would bypass you would get max pressure even if it was only 700 Psi it would be enough to start.
Well, thanks for clearing that up. Before when I posted my problems I was told that it wouldn't make any differance. I knew that it did. Thanks for the info.
 
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