I drove to Dairy Queen tonight with the family. When we left the truck would just crank and not start. The Icp would only build to 305psi but The IPR was 77 while cranking. Ive decided to replace the Dummy and standpipes. Should I pull and replace the IPR as well? STC has been replaced. Readings are taken off a scanguage if that helps. Anything else I should replace?

Thanks

Daniel

 

You could take it out and have a look at the screen.
If it pushed in or has a hole you may want to put
that on the list.

Sean

 

Can you pull the ICP connector and see if she fires up?

 

I tried once before and it wouldn't start at all.

 

hows the batts volts and Ficm? check all ficm connections

 

What year truck?

If the stand pipes and dummy plugs don't fix it you can do an air test.

I would not replace the IRP unless I had a good idea it was bad, but that's me.


.

 

Looks like its a 2006

So we all know what that means LOL

Replace everything in the HPO system Except the HPOP Just Kidden

POST ICPV @ KOEO

If I was in your Shoes I would Also rering injectors BUT only if you can get the Aliant power Oring Kits because they have the Top Oring in the Injector that SEALS the HPO Rail to the injector Fords Oring kits Don't have that very Top Oring Ford wants to sell you a Injector


You should also look into replacing the HPO Rail Nipple Oring to as now these Trucks are getting some miles on them and the Orings in the HPO Rails are starting to Fail Also

https://www.ford-trucks.com/forums/1...ole-story.html

It might be a Good Idea to AIR TEST the HPO System First and Also to Verify repair before the Truck gets put all the way back together Just to double check things and also to check your HPOP. 05+ HPOP don't fail Much but you never know

 

Personally I would be suspicious of the IPR - it should be at 84% when cranking IIRC

 

Yes it is a 06 with 218k miles on it. I had wondered about IPR too. it was cranking at 305psi then all of the sudden shot to 1400 and cranked then died. cranked again this time it caught and drove fine all the way home. Needless to say she is parked until i can figure it out.

Ill pull IPR is there a test for it? Or just look at the screen? I have the dummy plugs and stand pipes ordered too. How hard is it to change the orings on the injectors? Is that really worth doing?

 

 

Could it be a SGII Thing

Guess I could pull a FICM Relay and give it a Crank see where my IPR% Hits




Post IPR% @ KOEO should be 14.84%

 

srmastertech says that normally a failed IPR will not build any pressure at all, and ICP will remain at 0 pressure. A small leak at the dummy plugs will allow some pressure to build usually 300 psi. A leaking STC fitting will show some pressure but usually never more than 100 psi.

Going off of the OP's problems...

Sounds like dummy plugs will be the fix no?

Here is a good TSB.

http://www.iprresearch.com/skin/comm..._tsb08-9-9.pdf

 

Ipr% KOEO is 14.84

I'm traveling for work all next week. Will be at least a week before I can get it done

 

Well that's 1 point to a good IPR valve

Did you happen to see ICPV @ KOEO???????

You may end up broke down in a bad spot

 

.23 ICV KOEO cold

Cold crank tonight IPR only went to 77