rough runnins!

Rhinonator · #1 (**permalink**) 11-13-2012, 07:01 AM

I've got a 2006 f-350 with head studs delete kit and more. I recently had installed the loony wild. But after running it for about two weeks my truck has a miss. I don't think it has anything to do with the tune. I've checked the ficm and it was at 47.5 running and i checked the injectors and they past the test.i thought maybe fuel related so i replaced the fuel filters and added stabilizer any suggestions?

Wed Turner · #2 (**permalink**) 11-14-2012, 01:54 AM

Do you know what fuel pressure you are running at? Have you upgraded your fuel spring yet? Do you have the ability to monitor the FICM voltage while you are driving?

Rhinonator · #3 (**permalink**) 11-14-2012, 04:03 AM

No no and no lol right now we think it maybe a clogged injection. So i put in two quarts of hot shot secret. I work for the next two days straight so i won't be able to do much until Friday. Now what spring are you talking about?

Wed Turner · #4 (**permalink**) 11-14-2012, 03:50 PM

I am speaking of the Ford blue fuel pressure spring. I would think that if the truck had been studded and deleted it would have been done too but without being able to monitor fuel pressure it is impossible to say for sure.

**Bubba88** · #5 (**permalink**) 11-15-2012, 06:14 PM

Do the injectors miss when slowing down(downshifting) and at idle....or all the time??

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Rhinonator · #6 (**permalink**) 11-15-2012, 06:25 PM

All the time. I am running hot shot secret right now. Butif this don't work Im going to try revx.

Rhinonator · #7 (**permalink**) 11-16-2012, 05:59 AM

I drove the truck this morning and it seems its getting worse. It has a miss in it while driving it. It also has the miss while in cruise control.

Wed Turner · #8 (**permalink**) 11-16-2012, 07:28 AM

It really sounds like injector or FICM based in my limited experience. You could have a failing fuel pump as well.

Rhinonator · #9 (**permalink**) 11-16-2012, 08:35 AM

We are fixing to hook it up to the ford tool and test the ficm again. Only this time were going to drive it. Last time we checked it in the off position and at idle.

**Bubba88** · #10 (**permalink**) 11-16-2012, 08:41 AM

also do an injector buzz test while youve got the scanner hooked up. See if the injectors will show any miss on the scanner.....if the injector is bad (more than likely spool valves) it'll show a -(number) i.e. -18

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