vgts problem? - Ford Powerstroke Diesel Forum
 
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post #1 of 7 Old 03-06-2010, 06:09 AM Thread Starter
th3
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vgts problem?

since i installed a turbo back straight pipe i can hear every noise the turdo makes. i noticed that when i come to a red light i can hear the turbo cycle on and off. the turbo will stop whining and the exhaust rumble will take over then after several seconds the exhaust rumble will stop and the turbo will spool back up. if i sit long enough it will do this several times. i thought the turbo is supposed to keep a steady spool at idle. do i have a solenoid problem?

early 2004 f350 cc kr fx4 lwb 6.0 auto 130k miles
4" turbo back ss magnaflow w/kitty toss
rotella t6 5w/40 rev-x
nitto 285/75r16
sct tsx with eric's tunes
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post #2 of 7 Old 03-06-2010, 06:21 AM
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Mine does the same thing it

2003 F-250 RC/LB 6.0L with Innovative tunes, K&N FIPK, 3.5 inch down pipe to 6 inch stacks, ARP studs, Autometer gauges, 2006 grill and bumper.

2003 F250 CC/SB 7.3L DP-Tuner, 4" turbo back 5" tip, Autometer gauges, Cowl Hood.

1984 Ranger RC/LB 2.2L Perkins, turned the pump up, turbo off a Mitsubishi 2.3L, and yes it rolls coal, it's not fast, and it's not for sale. 290k miles 43 mpg
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post #3 of 7 Old 03-06-2010, 10:16 AM Thread Starter
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yours does the same thing because its normal for a 6.0 or because yours has the same problem mine has?

early 2004 f350 cc kr fx4 lwb 6.0 auto 130k miles
4" turbo back ss magnaflow w/kitty toss
rotella t6 5w/40 rev-x
nitto 285/75r16
sct tsx with eric's tunes
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post #4 of 7 Old 03-06-2010, 10:33 AM
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My 05 does the same thing, didnt notice it until i recently got it reflashed. It could be a vane sweep??
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post #5 of 7 Old 03-06-2010, 11:20 AM
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Yes, this is a normal condition for a 6.0. the vanes are sweeping to increase exhaust back pressure during an egr cycle, among other things.

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post #6 of 7 Old 03-06-2010, 11:43 AM
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Quote:
Originally Posted by DanTech_Offroad View Post
My 05 does the same thing, didnt notice it until i recently got it reflashed. It could be a vane sweep??
Yes, you are correct SIR. The latest PCM calibration has the VGT doing a "full sweep" if left idling long enough to prevent the vanes from sticking to the housing.

http://www.yorkdaleford.com/service.html

Ford Diesel/Senior/Master Tech who placed 2nd overall in Ontario on the Fix-It-Right-First-Visit score for 2010

....who works at a dealership that now employs SOME half decent looking female employees since they overhauled most of the administrative staff

....but STILL loves hot women with big boobies

....and STILL hates working on E-Series with 6.0L
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post #7 of 7 Old 03-06-2010, 02:06 PM Thread Starter
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good deal, thanks guys! i figured i had another problem.

early 2004 f350 cc kr fx4 lwb 6.0 auto 130k miles
4" turbo back ss magnaflow w/kitty toss
rotella t6 5w/40 rev-x
nitto 285/75r16
sct tsx with eric's tunes
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