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post #1 of 3 Old 12-02-2012, 05:17 PM Thread Starter
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6.4 newb with low boost question

Guys i have an 08 6.4 that i just got a month ago. One thing i notice is that some times when i get on the throttle it seems sluggish 20psi on the guage. Other times it goes up to 30psi and really scoots. I have no codes or noticable problems. Am I missing something? It is totally stock for now. Can the vgt get stuck and not throw a code?


2000 F-250 7.3 CCSB 4x4 7.3

2007 F-550 CCLB 2wd 6.0

2003 F-550 Reg Cab 2wd 7.3

2003 F-350 CCLB 4x4 76.0

7.3 powerstroke repair/enthusiast for ten years.
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post #2 of 3 Old 12-02-2012, 07:20 PM
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next time it does it run a system check. most likely going thru dpf cleaning.
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post #3 of 3 Old 12-02-2012, 08:44 PM
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^agreed. I'm only a year into this but the only other sluggish problem I have encountered was when I had a cracked up pipe. You'd know it though, loud hissing under the hood was my give away! Get rid of that dpf and you'll be very happy!

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