How can I tell if I have bad Injectors??? - Ford Powerstroke Diesel Forum
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Old 10-22-2007, 05:39 PM
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How can I tell if I have bad Injectors???

I have a 2003 F350 with a 6.0 PSD. In the am it cranks up and runs smooth. But if you give it some throttle it acts like it has a dead cylinder or two. If i drive it right away its very sluggish until i get about 1/2 a mile down the road then it picks up and runs find all day, even after sitting at work for 8 hours. If I let it run for about 5 to 10 minutes on first crank of the day it does great all day long. Iv read where people have injector trouble with the 6.0's. Could it be a glow plug? I need some help figuring this out.. Thanks
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Old 10-23-2007, 04:46 AM
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How many miles?
The 03 6.0s were more problematic as i understand it. Have Ford do a power balance test and while its in there ask for the lastest and greatest coldstart reflash (version 2). That may be all it needs. Power balance test will show if you have some lazy, worn out injectors.
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Old 10-23-2007, 05:15 AM
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Its got just over 107k on it. Last night after posting the thread I went out and fired it up for the first time in a few days. It ran like crap cause it was like 50 outside. After a few minutes of idling it smoothed out. The low fuel light was on so i thought i would put some injector cleaner in it and let it run for a wile. I got a bottle of Lucas injector cleaner and dumped in the whole bottle. I let it run for about an hour and drove it really hard for about 10 miles. I didnt try to crank it this morning but it was running better than ever last night. Maybe your right about taking it to ford for the reflash. Ill see about doing that.
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Old 10-23-2007, 05:23 AM
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That reflash has helped many injectors....after some miles on them, they seem to get a little weak on start up and this reflash helps. Basically what it does is shoot high voltage to the injectors upon start up causing the injector to overcome the sluggish effects of cold fuel.
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Old 10-23-2007, 05:26 AM
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Cool, well i think ill give my Ford Dealer a call and see when they can work me in. Thanks for the tips.
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Old 10-23-2007, 05:33 AM
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can they reflash 99-03s? and if so how much does it useally cost?
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Old 10-23-2007, 05:36 AM
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I don't think this flash will help a 7.3 but I'm not sure of that. Its the 6.0 injectors that have been problematic.
Someone smarter than me will have to chime in on that!
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Old 10-26-2007, 07:45 PM
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the inductive heating flash has solved alot of running issues for people..depending on your build date, you may have the C94 injectors, which have been problomatic for some...

i had 2 of them start leaking BADLY...there is no tune that will make THAT much smoke!!!
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Old 10-29-2007, 06:40 AM
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Tomorrow im taking it to Ford to spend the day getting checked over. When i called them they knew exactly what i was talking about. I feel like this will fix it because it runs really smooth and no smoke, except for the first crank of the day but i still get no smoke. Thanks for the advise.
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Old 10-30-2007, 11:57 AM
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EGR Question.

Ford just called me and said that they reprogramed my computer so that should fix my rough start problem. They said its showing a code that the EGR has poor flow. They want over 300 for the part and 65 bucks labor. My question is: Where is the EGR and do yall think i really need to replace it? Iv heard folks talk about bypassing it some how, would any one recomend that? Help save a fellow powerstroker 300 bucks.
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