Ideas why I keep losing injectors - Ford Powerstroke Diesel Forum
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Old 11-12-2012, 11:54 AM
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Ideas why I keep losing injectors

Well its been about 8k since i got my new motor put in along with all new injectors(reman) head studs egr delete......blah blah blah. But my problem is about twice a year i will have an injector or two miss firing and need replaced. I always use a fuel additive, change fuel filters every 10-15k and am at a loss of ideas of why i need to put a new injector in twice a year. any ideas?
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Old 11-12-2012, 12:06 PM
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The number one enemy of an injector is low fuel pressure. Do you run a fuel pressure monitor? New engine or not if your fuel pump is not able to keep the pressures up it will kill the injectors. There can be other causes but first thing I would look at is getting a fuel pressure gauge.

Other question is it always the same # injector you are having problems with?
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Old 11-12-2012, 12:19 PM
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no dont have a gauge, and no not same injector but usually numbers 7 or 8 or 3 or 4.......but not always. i have replaced 2 and 5 recently
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Old 11-12-2012, 12:31 PM
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Chck your ficm (fuel injector control module) voltage. Should be 48v, less than 45v means its toast. Monitoring the 6.0 is crucial, fuel pressure, ficm voltage, battery voltage (low batts kill ficm's), and also thr ever so common oil temp, and coolant temp. There's other stuff obviously to monitor too, egt's and all, but those are all critical to keep an eye on. If fuel press drops below 45 psi, bad things will happen.
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Old 11-12-2012, 12:42 PM
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Hmm I'm aware of most of those things but I got a new ficm about two years ago so I didn't even think of that. But now that you mention the batteries I've been having trouble with them randomly dying on me out of the blue
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Old 11-12-2012, 01:01 PM
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Oil type and drain intervals are also critically important to injector health.

k
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Old 11-12-2012, 01:08 PM
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yes i understand all that, but im saying the truck has a tuner on it but mild. and gets babied.....there is no logical reason why i should keep having injectors going out besides from all the obvious things. Like i shouldnt be having a problem with fuel pressure, if i keep the filters changed and good fuel, its not like im pulling a sled at WOT. I dont really have a problem with starting so i didn't think of FICM. But like i said i got a new motor less then 8k ago and the heads were sent out machined and everything, so they should be flowing free and clear. I tried running Hot shot secrete and it seemed to help a little but i still have one injector acting up and it only does it every once in a while. Anyone have a link to check the voltage on the ficm without shorting it out?
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Old 11-12-2012, 01:13 PM
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One thing you'll learn about the 6.0L's, is that they need to be monitored.

Your FICM could be failing. Your fuel pump could be failing. Both can easily be monitored. FICM voltage should never drop below 46V. Fuel pressure should never drop below 45 PSI.

You will also learn that the 6.0L's really like clean synthetic oil. I'd recommend running 5W-40 synthetic, year round, with Rev-X or Archoil additives.
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Old 11-12-2012, 03:50 PM
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You're changing injectors and you dont have any gauges to monitor fuel pressure?

You need to monitor a 6l before you throw parts at it.

Sent from my DROIDX using AutoGuide.Com Free App
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Old 11-12-2012, 04:12 PM
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You've heard this several times but you can't assume anything is ok with a 6.0, it must be monitored. Just because the fuel filters are changed doesn't mean your fuel pressure is or will be good. The oem fuel pressure regulator is a POS an low fuel pressure is a common problem. Clean oil preferably a 5w40 synthetic with a 5k-6k change interval helps a bunch.
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