No Start- Low ICP

psdguy95 · Feb 2, 2014

Wouldn't the HPOP be out of oil after all the cranking he has done by now if the LPOP wasn't getting oil?

dthompson · Feb 2, 2014

Ok. Before I ever tried to start it I checked the oil. It was right at full. After all yesterdays cranking it was at the add mark. I topped it off, and checked the reservoir and it was about 3/4" from the top which I understand is right. Then I pulled the back plug on the passenger side oil rail and oil came out. Also the low pressure gauge on the dash has come up to normal. So I moved on and removed the IPR. First time doing that, kind of a b**** to get a ratchet on the socket. I'm just going to order a new, because a couple of the orings are broke, so I have to wait on them anyway. Hopefully this will get it running. Thanks everyone.

lincolnlocker · Feb 2, 2014

crowz said:
Welcome aboard

Im guessing thats the culprit then. Ive removed a half dozen of them that have been in a 7.3 all at 200k + miles and never had a broke oring. Maybe some with a scuff in them but never broken.

live life full throttle

JoeDaddy · Feb 2, 2014

You're not talking about the split hard ring are you?

dthompson · Feb 2, 2014

Actually Joe, I think your right. After looking at the kits of o-rings. Like I said this is the first one, I've had out so I was unaware it was supposed to be like that.

JoeDaddy · Feb 2, 2014

Google 7.3 IPR O rings and get the Cat rings. There the same rings but a 1/3 the price. While you waiting clean your IPR.

dthompson · Feb 2, 2014

Can a guy effectively clean the IPR and get it to work? Joe where does a guy get the cat rings. I see 7.3 ones everywhere but can't seem to find where to buy the Cat ones

TyCorr · Feb 2, 2014

I just bought some bnib alliant parts last week and alliant has started getting their parts from China. Another one bites the dust.

TyCorr · Feb 2, 2014

dthompson said:
Can a guy effectively clean the IPR and get it to work? Joe where does a guy get the cat rings. I see 7.3 ones everywhere but can't seem to find where to buy the Cat ones

Should be able to. Most guys use brakekleen. They can be taken apart but I learned the hard way that I dont have smal.enough hands to handle the parts. I would suggest cleaning it assembled.

ghohouston · Feb 2, 2014

Yes cleaning the ipr is easy. Just paya ttention to how the itty bitty needle comes out, and make sure it goes back in the same way

lincolnlocker · Feb 2, 2014

JoeDaddy said:
Google 7.3 IPR O rings and get the Cat rings. There the same rings but a 1/3 the price. While you waiting clean your IPR.

1/3 the price of riffraff or dieselorings?

live life full throttle

lincolnlocker · Feb 2, 2014

Riffraff orings are a lil over $10 plus shipping. And here is a decent site with instructions on cleaning the ipr
http://www.nwforddiesels.com/tech/ipr/

live life full throttle

JoeDaddy · Feb 3, 2014

I was thinking Ford but I think I paid $6 IIRC.

I've taken them apart but it's unecessary. You can accomplish just as much by spraying the crap out of it.

033-6028 O-ring
123-3132 Backup ring
033-6039 O-ring

lincolnlocker · Feb 3, 2014

Ah 10-4

live life full throttle

TyCorr · Feb 4, 2014

Yea, if you have sausage finners dont take it apart!

dthompson · Feb 5, 2014

I went ahead and ordered a new one. Should be in tomorrow, but there is 8" of snow on the ground and no shop. Might be a day or two before I get it in and try to fire it up again. Hopefully this is the ticket!

lincolnlocker · Feb 5, 2014

Good luck man. Hope its the fix.

live life full throttle

TyCorr · Feb 6, 2014

dthompson said:
I went ahead and ordered a new one. Should be in tomorrow, but there is 8" of snow on the ground and no shop. Might be a day or two before I get it in and try to fire it up again. Hopefully this is the ticket!

You dont have to lay in the snow to.change it. I changed mine in a snowstorm last week in a driveway. Take you about six minutes. 1 1/8 dw socket and done..

Sorry Im anxiously awaiting

dthompson · Feb 6, 2014

Dude it's killing me too. But after working outside all day working on the truck in single digits isn't high on my list. LOL. Maybe tomorrow evening. Cross your fingers!

JoeDaddy · Feb 7, 2014

I spent 2 days trying to start my 2000 7.3 after a OBS 7.3 swap. No start no smoke with the tach working perfectly. As a last try I swapped CPS again.....bingo!.

Don't give up!