What causes bad fuel injectors? - Ford Powerstroke Diesel Forum
 
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post #1 of 10 Old 07-10-2012, 10:15 AM Thread Starter
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What causes bad fuel injectors?

I have a 2005 F250 6.0l with 70,000 miles. This truck has been a gem. Never had any problems with it. I recently did a coolant flush, and within a matter of a day or two, the truck started running rough. Mainly on start-up. P0275 on my Edge CTS. Dropped truck off at Ford and was advised the #5&7 injectors are bad. What would cause two injectors to go bad at the same time? I add DieselKleen every other tank, sometimes every tank.

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2005 F250 SCREW LARIAT 6.0L
ARP STUDS, GASKETS, SCT CUSTOM, AFE STAGE II
10" LIFT, 38X14X24 KUMHO MUDDERS
MKW WHEELS, AMP RESEARCH STEPS
4:56 F/R GEARS, 5% TINT, CLAYMORE HITCH
PHANTOM II VOLTMETER, BOOST, EGT
TRANS TEMP, 2 12" KICKER COMP SUBS,
PIONEER AVIC Z130, RECON TAILS, 3RD BRAKE &
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UPFITTERS, EXTANG REVOLUTION LO PRO, MBRP DUALS
W/O CATS

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post #2 of 10 Old 07-10-2012, 11:31 AM
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Well where to start. How many miles on the injectors? Are you using 5w40 synthetic motor oil? are you using Motorcraft/Racor/Fram oil filters? How often are you changing fuel filters? Using Motorcraft filters? How is the FICM? ab bad FICM will kill injectors. Bad batteries or alternator will kill the FICM. How is your fuel pressure? Low fuel pressure will kill injectors.
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post #3 of 10 Old 07-10-2012, 11:42 AM Thread Starter
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Originally Posted by PGreenSVT View Post
Well where to start. How many miles on the injectors? Are you using 5w40 synthetic motor oil? are you using Motorcraft/Racor/Fram oil filters? How often are you changing fuel filters? Using Motorcraft filters? How is the FICM? ab bad FICM will kill injectors. Bad batteries or alternator will kill the FICM. How is your fuel pressure? Low fuel pressure will kill injectors.
I bought truck used, so i would assume they are original injectors. I use 5W40 Shell Rotella synthetic oil. I always use motor craft filters and change the oil between 5000-7500. I change the fuel filters every time i change the oil and use motor craft. FICM reads 47.5-48 per my EDGE CTS. I recently changed to the blue spring and fuel pressure is about 64psi.

***MOLON LABE***

2005 F250 SCREW LARIAT 6.0L
ARP STUDS, GASKETS, SCT CUSTOM, AFE STAGE II
10" LIFT, 38X14X24 KUMHO MUDDERS
MKW WHEELS, AMP RESEARCH STEPS
4:56 F/R GEARS, 5% TINT, CLAYMORE HITCH
PHANTOM II VOLTMETER, BOOST, EGT
TRANS TEMP, 2 12" KICKER COMP SUBS,
PIONEER AVIC Z130, RECON TAILS, 3RD BRAKE &
CAB LEDS, HID 6000K HEADLIGHTS & FOGS
UPFITTERS, EXTANG REVOLUTION LO PRO, MBRP DUALS
W/O CATS

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post #4 of 10 Old 07-10-2012, 12:23 PM
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By the time you added the blue spring it was too late. I had a similar experience with my truck. Bought it with 70k and about 6 months later I had to have 4 injectors replaced. You should be fine now with the blue spring and hopefully you won't have any other injectors go bad.

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post #5 of 10 Old 07-10-2012, 01:42 PM
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Don't need to change fuel filters at every oil change. Every other change is fine. Recommended change interval is 15k miles. Sounds like you are doing the right stuff. This happens with a used vehicle sometimes. You don't really know much about its former life.
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post #6 of 10 Old 07-10-2012, 02:22 PM Thread Starter
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Sounds good! Thanks for the input. Good thing is the after market warranty I have paid for everything. Only thing I am responsible for is a $100 deductible. Hopefully these are the only two that are bad.

***MOLON LABE***

2005 F250 SCREW LARIAT 6.0L
ARP STUDS, GASKETS, SCT CUSTOM, AFE STAGE II
10" LIFT, 38X14X24 KUMHO MUDDERS
MKW WHEELS, AMP RESEARCH STEPS
4:56 F/R GEARS, 5% TINT, CLAYMORE HITCH
PHANTOM II VOLTMETER, BOOST, EGT
TRANS TEMP, 2 12" KICKER COMP SUBS,
PIONEER AVIC Z130, RECON TAILS, 3RD BRAKE &
CAB LEDS, HID 6000K HEADLIGHTS & FOGS
UPFITTERS, EXTANG REVOLUTION LO PRO, MBRP DUALS
W/O CATS

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post #7 of 10 Old 07-10-2012, 06:38 PM
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Well that's good that it's under warranty. Since it is you might end up getting 4 injectors. Even though I only had 2 throwing codes the dealer replaced all 4 on the same side.

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Totaled 12-26-12 It will be missed.
2006 F-250SD Lariat CCSB Dark Stone
-ARP head studs
-SCT SF3 w/ SRL+
-BPD Semi-bullet proof kit
-BPD FICM
-High Idle
-Edge Insight CS w/ EGT
-GlowShift Fuel Pressure gauge
-285/70/17 Toyo Open-Country A/T
-4" MBRP Turbo-back w/ cat-delete
-Randy Ellis bar w/ Hella 500s
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post #8 of 10 Old 07-10-2012, 06:54 PM Thread Starter
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That's nice. I'll look into that tomorrow.


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***MOLON LABE***

2005 F250 SCREW LARIAT 6.0L
ARP STUDS, GASKETS, SCT CUSTOM, AFE STAGE II
10" LIFT, 38X14X24 KUMHO MUDDERS
MKW WHEELS, AMP RESEARCH STEPS
4:56 F/R GEARS, 5% TINT, CLAYMORE HITCH
PHANTOM II VOLTMETER, BOOST, EGT
TRANS TEMP, 2 12" KICKER COMP SUBS,
PIONEER AVIC Z130, RECON TAILS, 3RD BRAKE &
CAB LEDS, HID 6000K HEADLIGHTS & FOGS
UPFITTERS, EXTANG REVOLUTION LO PRO, MBRP DUALS
W/O CATS

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post #9 of 10 Old 07-10-2012, 07:22 PM
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alliant PDF if u have not seen it

http://alliantpower.com/pdf/APTB-0109-watermark.pdf

chances are you had stiction in one and when the other started to have issues it was really noticeable

that is how mine went down at 50k

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Last edited by ZMANN; 07-10-2012 at 07:30 PM.
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post #10 of 10 Old 07-12-2012, 04:37 AM Thread Starter
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Quote:
Originally Posted by ZMANN View Post
alliant PDF if u have not seen it

http://alliantpower.com/pdf/APTB-0109-watermark.pdf

chances are you had stiction in one and when the other started to have issues it was really noticeable

that is how mine went down at 50k
Thanks for info. That was good reading.


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***MOLON LABE***

2005 F250 SCREW LARIAT 6.0L
ARP STUDS, GASKETS, SCT CUSTOM, AFE STAGE II
10" LIFT, 38X14X24 KUMHO MUDDERS
MKW WHEELS, AMP RESEARCH STEPS
4:56 F/R GEARS, 5% TINT, CLAYMORE HITCH
PHANTOM II VOLTMETER, BOOST, EGT
TRANS TEMP, 2 12" KICKER COMP SUBS,
PIONEER AVIC Z130, RECON TAILS, 3RD BRAKE &
CAB LEDS, HID 6000K HEADLIGHTS & FOGS
UPFITTERS, EXTANG REVOLUTION LO PRO, MBRP DUALS
W/O CATS

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