My 2006 Crewcab Dually would crank with no start a few years ago. I stopped at a drive thru to order and when I started the truck back up it was a long crank with a strange idle then cleaned up. I didn't think anything more about it and drove 25 miles to work. Later that day I went to restart my truck with no luck and had it towed home.

In the meantime I have been lurking and trying to learn what I can about 6.0s.

It has been sitting in the driveway for 2 years till this week I decided to figure out what is going on with it and get it going.

I purchased a ScanGauge II and charged the batteries up.

FICM Main Power : 49-50volts
SYNC: 1
ICP: 0
IPR: 85%

I looked at the oil filter housing and noticed the oil was low in the housing. And also no oil pressure reading on the dash gauge. Upon closer inspection of the filter I noticed the top of the filter had popped up and was level with the teeth that seat in the filter housing cap. I replaced the filter and check the oil level and during cranking it registered oil pressure on the dash gauge and filled the filter housing.

I unplugged the ICP sensor and then got a reading of 1500 and the truck cranked and acted like it was trying to start but no luck.

I figured the next step is to look at the IPR to see if the screen has failed and something stuck in it.

This is a little overwhelming since this is my first journey into the world of diesels and when I first looked at this 2 years ago....I saw something like 26 different things that could keep a 6.0 from starting......I said the price of diesel fuel......it can sit.

Now I am working on the house and it would be nice to have a truck to run back and forth to the dump and Home Depot.

Thanks in advance.......

Signed....Overwhelmed

 

I think you are on the right track. I would think it's your IPR or a major HPO leak.

Any knowledge what if any work has been done on the truck, standpipes, dummy plugs, STC fitting, etc???

 

Need to know the ICPV's at KOEO ( should be .18 to .24 ) Need to know the ICP, IPR% and FICM voltage while cranking. The items that need attention on the 06' engines are standpipes, dummy plugs and the STC fitting. It sounds to me like a HPO issue. But you need to make sure you are only using OEM oil/fuel and air filters and an OEM oil filter cap. Here is a video showing the deficiencies of aftermarket filters,

 

The values I mentioned were while cranking. The oil filter I think I put in this time is a Fram I will look at the box tomorrow. The cap is the stock cap. I watched the video and will be buying Motorcraft from now on.

No mods have been done to the truck. I did get an EGR code a few weeks before all this happened years ago...and I disconnected the valve. I had planned on cleaning the valve once I got it to the point where it would start.

To get to the IPR do I need to take the turbo off or can I remove the IPR by the way of the FICM and moving the harness?

 

Yes you can get to it with the turbo in, but it's a pain IMO. Do you have the fittings to perform an air test? If not, "Robinthahood" can fix you up...

How many miles do you have on the odometer?

 

It has 142000 on it. I don't have the air check stuff. But I might have what I need in the grab bag in the shop. What do I need thread sizes? There is a hydraulic shop that I get odd size stuff from when I can't find it in the regular shops.

 

I couldn't find any information on the IPR threads, but can do the same thing using the ICP port. You need to command the IPR closed tho.



https://www.ford-trucks.com/forums/1...p-threads.html

 

Icp thread on 06 is 12x1.5. Air test before throwing money at it. I would guess stc fitting but could be any of many things. Mine that I just had issues with was a oring on top of the injector.

 

Well I got the IPR out and this is what I found this morning.

 

You may be able to clean it up and put a new screen kit on it. You will want to make sure it still opens and closes.

Did you pull the turbo? If so, now is the time to spend 60.00 and replace the STC fitting. Even if it's not the problem, it's good peace of mind to have it replaced.

 

Looks like you found the problem. Just to let you know when you pull the oil filter out the oil Drains back down.

 

Shane I did not pull the turbo...I fought around it this time.

9228 thanks for that tip I will not pull the filter till I put the IPR back in.

 

I got it started after 2.5 years of sitting. Now I noticed that it takes a little bit of time to start (long crank).

So now I have something else to chase to see what is going on.

 

Did you get the opportunity to run an air test on it? Could still be a HPO leak.

 

No I am going to do that Monday after I visit the hydraulic shop for all the fittings I need to set it up.