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05-30-2017, 10:41 AM
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#1
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Name: Nowak's Diesel
Title: Diesel Enthusiast
Status: Not Here
Join Date: Jan 2012
Location: missouri
Member`s Gallery
Posts: 210
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03 high idle issue
03 6 speed manual. Fire it up and it idles normal, touch the pedal barely and it will go into high idle mode. If I hold the brake down it will slowly return to a normal idle. It does this when normal running temperature. When driving and coming to a stop when I push in the clutch it will go into high idle. Leaning towards apps sensor possibly, it will lose the pedal when driving sometimes then come right back up within seconds. Motor is smooth. It has had injectors within 30k miles. My data log shows 0% throttle when it's high idling and the rail pressure is normal. Any help would be greatly appreciated.
__________________
04.5 ecsb, second gen swap,S369sxe,180hp injectors,head studs,Holley blue, Built auto. Tuned by me with hp tuners🍺🍺🍺
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05-31-2017, 06:53 AM
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#2
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Name: Red Sleeper
Title: Too Much Time
Status: Not Here
Join Date: Aug 2009
Location: Lone Star State
Member`s Gallery
Posts: 4,595
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Does the truck have a tuner on it? If so, what brand?
__________________
Nick J
'14 Silverado LTZ 5.3 4wd
'05 Cummins QCSB 4wd 48re
'91 Cummins w350 5spd
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05-31-2017, 01:45 PM
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#3
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Name: Nowak's Diesel
Title: Diesel Enthusiast
Status: Not Here
Join Date: Jan 2012
Location: missouri
Member`s Gallery
Posts: 210
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Completely stock, besides exhaust.
__________________
04.5 ecsb, second gen swap,S369sxe,180hp injectors,head studs,Holley blue, Built auto. Tuned by me with hp tuners🍺🍺🍺
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06-03-2017, 10:10 AM
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#4
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Name: Nowak's Diesel
Title: Diesel Enthusiast
Status: Not Here
Join Date: Jan 2012
Location: missouri
Member`s Gallery
Posts: 210
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No one else ever come across this problem ?
__________________
04.5 ecsb, second gen swap,S369sxe,180hp injectors,head studs,Holley blue, Built auto. Tuned by me with hp tuners🍺🍺🍺
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06-03-2017, 10:58 AM
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#5
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Name: Red Sleeper
Title: Too Much Time
Status: Not Here
Join Date: Aug 2009
Location: Lone Star State
Member`s Gallery
Posts: 4,595
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My dad has an early 04 with this same symptom. Doesn't do it all the time, just once in a while. Ambient temperature doesn't effect it, truck runs fine otherwise. It does however have a banks 6 gun tuner. Bone stock otherwise. We have tried completely removing the tuner and it would still do this.
I searched here and on Cummins forum for an answer.
We have just dealt with it honestly.
__________________
Nick J
'14 Silverado LTZ 5.3 4wd
'05 Cummins QCSB 4wd 48re
'91 Cummins w350 5spd
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06-14-2017, 09:37 AM
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#6
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Name: SixOhh
Title: EPA unfriendly
Status: Not Here
Join Date: Aug 2008
Location: Magnolia, TX
Member`s Gallery
Posts: 1,108
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Have you tested the APPS?
go to timbo's website and there is a video
__________________
07' Silver 2500 5.9 4x4 LWB
Goerend 48re-csp5/EFI- T&C Mild Cp3-F1 Apex 7.5 -S369sxe Amsoil
Coolant Bypass -Airdog-D&J- Hamilton 188/220 -AFE-ARP Opti-Lube
H-Town Off-Road
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10-06-2017, 11:27 PM
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#7
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Name: motorwood
Title: Too Much Time
Status: Not Here
Join Date: Jun 2010
Member`s Gallery
Posts: 318
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Have had same problem for years, was told ecm needs reflashed, haven't done it yet.
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