I have a 2004 6.0diesel, 92,000mi.. I have had a stumbling & erratic warm ups for some time, really bad when cold, sometime wont start in cold, cold weather. Nephew works for UPS & said they put injectors in their early 6.0s. He is in Fl, I am in Ohio so I cant get him to do it. I have tried supplements & filter changes but nothing has helped, keeps getting worse as time passes.

I have built race car engines up until 4-5 years ago, so I am not without some experience. Never had occasion to work on a diesel other than valve job on a 6-71 GMC in 1970.

And another thing.......more than a few have told me that the head bolts (???) may break at any time......??? If that is the case, should I change them while changing the injectors????........or would they break in the removal process??

PJH

 

Hi PJH,

I'm going to send this one down to the 6.0L Powerstroke forum. I don't know a lot about those engines, but I can say I've never heard of a head bolt breaking. Not uncommon for them to stretch and cause headgasket issues though.

 

You may be able to clean the injected or spool valve!!
Lots cheaper than a full set of injectors

Does it run bad until the oil temp hit 150*degree

You better check your ficm ***** very first thing

 

Blade35 is right
But on the other point YES you can change them yourself
just make sure to read and follow the instructions.

It' not a high skill process just time and attention to details.

And if something does come up we can help.

Sean

 

Benny is there something you haven't told me, What are ficm *****

 

Yeah, injectors aren't that hard to replace, but you definitely want to check out the FICM first. It would kinda suck to spend big bucks replacing the injectors and still have the cold start issue.

 

I just got this new phone that you can talk into and it will type your message

I have figured if you talk like a robot it works pretty good most of the time

And an answer to your question about the ficm ***** yes they all should have them and you must check them regularly

I have to admit that caught me off guard and was pretty funny about the ***** lol

 

I'm messin with you bud. if I read halve the stuff I typed fast the clown hat would fit LOL

 

Also, check your fuel pressure. If you do wind up having bad injectors, also do the fuel pressure regulator update (aka blue spring mod) because that's the main cause of injector failure - low fuel pressure...

That said, it does sound more like a FICM issue based on the little information we've received. That's a very quick and easy $600ish repair, compared to injectors.

The injectors are fairly easy to replace - a 5 hour job for your first time, and you should really find a local diesel shop to do tests to find which ones are bad - that way you can either only replace the bad ones, or if you really want to spend your money, replace the injectors on that side of the truck. The reality is that if you solve the root cause of your injector failure, you can get away (reliably so) with replacing only the suspect injectors.

As far as head bolts -as long as you don't have a tuner, and aren't putting any mods (such as larger injectors) on it, then you should be fine as long as you keep things well maintained. If you do develop a leak in the EGR cooler, you absolutely have to fix it before you get enough coolant into your system to lift or crack your heads. Also, keep an eye on your EOT vs ECT temps, so you can reduce your risk for trouble. These temps can be picked up with any data logger, and if you have an android based tablet or smartphone, you can get that information for around $40 with a cheap OBD2 reader and Torque. If you have an iOS device you can get Dashboss, but it is considerably more expensive...

You won't even touch the head bolts to do injectors..

 

Josh

 

I had cold start problems I had 3 bad injectors 2,6,8 glad I had a extended warranty i had to pay 200 and the rest was the warranty people cost 1400 for the dealer to do it

 

CHEER, glad you got it fixed and thank you for the update

 

To the OP.

I don't see where anyone actually corrected the above suggestion. What Benny meant was check your FICM voltage. There is a procedure in the Tech Folder.
https://www.ford-trucks.com/forums/8...procedure.html

 

If I was you Id throw the Updated Blue Fuel press spring in