Bad injector - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 11-25-2010, 06:01 PM Thread Starter
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Bad injector

i have an 08 with a spartan on 150 tune and dpf delete pipe. the truck has 110000 miles 40000 of which had the chip in it. i recently had the number 5 injector go bad. put new injector in but the truck still doesn't seem right, it is a manual, when i get to higher rpm it just seems like it loses all power shift to a higher gear have good power for a little while and it just drops off. any ideas?

matt

2001 ex cab xlt lariat dually 6 spd
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edge evolution 2 with gauges
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post #2 of 6 Old 11-26-2010, 06:21 AM
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What's your fuel rail pressure when you notice the power loss?
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post #3 of 6 Old 11-26-2010, 10:56 AM
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Where are the EGT's at when you see the power loss? That tunes has a couple of defuel settings.

Jeff Dodd
spartan_jeff12@yahoo.com

2012 Ford F-250 Lariat CC/SB

Mods - Spartan tuned via laptop, 4" AFE stainless exhaust system, 2.5" PMF BMC leveling spacers, 3" PMF lift blocks, Fox Racing 2.0 shocks, Recon smoked mirror & cab lights
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post #4 of 6 Old 11-26-2010, 06:38 PM Thread Starter
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it has thrown a fuel rail pressure code that made the check engine light come on. i haven't noticed what the pressure is when driving it. the egts don't go over 1200.

2001 ex cab xlt lariat dually 6 spd
diy intake
4" exhaust
edge evolution 2 with gauges
ccv mod
aih delete
oil cross-over hose
fuel cross connect kit
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post #5 of 6 Old 11-26-2010, 06:54 PM
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You may have a bad high pressure fuel pump.

Jeff Dodd
spartan_jeff12@yahoo.com

2012 Ford F-250 Lariat CC/SB

Mods - Spartan tuned via laptop, 4" AFE stainless exhaust system, 2.5" PMF BMC leveling spacers, 3" PMF lift blocks, Fox Racing 2.0 shocks, Recon smoked mirror & cab lights
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post #6 of 6 Old 11-26-2010, 08:00 PM
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Pull the upper fuel filter on the motor. Shine a flash light in the bowl and see it it sparkles like gold. If it does that means your high pressure pump is going out and sending pieces of brass into your fuel system.

2010 Ford F250 CCSB Afe stage 2 si, Spartan 300,310,350 tunes, 5" flow pro down pipe back straight pipe,powerstroke67 ceramacoated downpipe, powerstroke67 Cold side pipe, Afe intercooler, Turbo socks, and a lot more to come.
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