2003 F250 6.0 nightmare
 

New hpop, fuel pump, injectors, lines to high pressure oil rail, icp, icp wiring but i still have hard starting. Ive wasted thousands trying to get this truck running but non of the mechanics can get it right. its been to ford and regular mechaninics. When its 65 outside it seems to start ok but when it warms up it wont start without ether. My batteries are over 3 years old and are leaking acid. could this be my problem? the last mechanic said the batteries were ok but hes questionable :]. any suggestions will help. im sick of wasting money just to be broke down and pay for another tow.

:dang::td:

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will it hurt my truck to start it with ether until its fixed?

Yes! Dont use ether more than you have to!! Have you googled hard starts on 6.0? Has the ficm been tested?

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yes ive googled it alot. ill check on the ficm thats the first ive heard of it. thank you

hii am new to this website but i can tell you one thing about 2003 6.0 there not a very good truck to have i am not trying to put anyone down but ford rushed them out so fast that they never got a chance to fix all the flaws so i would go with a 2004 or later for a 6.0

And you sir dont know what your talking about.

You should have taken it to someone that knows what they are doing and I guarantee you, you wouldnt have had to buy all of those things. Do the hpops in the 03s go out, yes. Were all of your injectors bad, probably not. Someone who knew what they were doing could have hooked up a scanner and told you exactly what was wrong with it by monitoring ICP psi while cranking and they also could have looked at your FICM voltage which might be your problem. And no not all ford mechanics know what they are doing, my truck will NEVER go to the dealer to get fixed...:argh:

Today i will be replacing both batteries and testing the ficm. Im hopeful the batteries didn't burn it up. I've had this issue for over 6 months now and would love for my truck to run right. Of course ever mechanic ive taking it to says they know all about these trucks. There all full of BS.

After all this work it would suck to find out it was just the batteries and or a weak FICM.:argh: Simple test of the FICM should take 10 mins with someone else cranking the truck. Weak batteries and FICM will cause a no start/ hard start problem with these truck. Make sure the batteries are LOAD tested before testing your FICM. If one battery is bad replace BOTH.

Sometimes the ICP sensor (I think thats what its called) on the common rail will leak causing low compression on start up, which causes hard starts.. Or the plugs inside the fuel rail will go bad, you have to buy new ones, which are longer and that usually fixes it.

(Im probably way off but its something like that, I remember fixing a lot of these that had the same problem at startup when it is hot..

Is it doing something like it'll start up when its cold? then when it heats up, if you shut it off, it'll be hard to crank up again?

If so, check what I just typed, hopefully I helped.

This is probably an easy fix.

This is my NUMBER 1 GRIPE with 6.0's. 90% of the time it's not even a big deal, but it quickly turns into long downtimes and $ thousands in repair dollars all because it was never truly diagnosed properly. Absurd.

First step before doing anything else is take the batteries off, bring them somewhere to have them load tested. If they're leaking, they probably need replacement anyways eh?

After that, test the FICM, you'll need a spare set of hands, and about 15 minutes. It's easy, and should at least eliminate some issues.

90% of hard starts with 6.0's can be attributed to weak/poor batteries or a dying FICM. Seriously. :c: