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Old 02-06-2012, 05:05 PM
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Please help!

please help

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Ok i had #7 injector bad the only one dealership said was bad i replaced it. Now it idles perfect but at about 1500 rpms its got a stutter no codes no weak injectors according to the computer. Has anybody had this problem Thanks jeremy
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Old 02-06-2012, 05:38 PM
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Originally Posted by farmboy8410 View Post
please help

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Ok i had #7 injector bad the only one dealership said was bad i replaced it. Now it idles perfect but at about 1500 rpms its got a stutter no codes no weak injectors according to the computer. Has anybody had this problem Thanks jeremy
do the blue spring update, switch to 5w-40 synthetic oil. id also get a fuel pressure gauge mounted in the cab. low fuel pressure, which kills injectors is common in many of the 6.0s on the road. the blue spring updates that to a good number. the synthetic should clear up some sticiton if u have any. if it helps but doesnt cure it, try some rev-x.
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Old 02-07-2012, 03:12 PM
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Thanks for responding ive done the blue spring i run Rotella synthetic with Lucas synthetic oil stabilizer ill check the fuel pressure tomorrow thanks again
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Old 02-07-2012, 03:16 PM
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Originally Posted by farmboy8410 View Post
Thanks for responding ive done the blue spring i run Rotella synthetic with Lucas synthetic oil stabilizer ill check the fuel pressure tomorrow thanks again
That Lucas oil treatment has caused a LOT of grief for 6.0 owners in the past. There have been reports of it causing oil foaming that leads to injector performance problems. A 6.0 uses oil to power the injectors at 500 to 3500 PSI. The ONLY additive I would use in my oil would be REV-X. Some say Hot Shot Secret is ok , but I wouldn’t use it in my truck.
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Old 02-07-2012, 03:37 PM
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and
2 stroker
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Old 02-07-2012, 09:06 PM
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and
2 stroker
agree with both. lucas additive is great in semis and all those other diesels, but not in these heui powered powerstrokes.
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