Duramax Diesels Forum Truck of the Week
  #1  
Old 11-22-2018, 12:59 PM
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NinjaMax NinjaMax is offline
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Default Reg Cab lly project

found a regular cab for sale in Denver for 5k, its got 230k miles on it and you can tell its been put through the passes. I talked the guy down to 3800.00 and loaded it up and brought it home.


Issues,

Truck will crank like crazy but wont fire, I gave it a small wiff of either to load it and it fired up. it idles smooth until you give it a little throttle then it has horrible what sounds like injector knock. The guy I bought it from didn't speak much English and didn't seem to know much of anything about the truck. Before I loaded it up I noticed the fpr was unhooked but didn't say anything.
the truck also doesn't like 2ng gear, something im hoping is the nsbu switch doe to the "range inhibited" flashing on the dash.

Codes when I got it home
P0732
P0841
P0090
P0088
P0841

The truck had a airdog but was missing when I picked it up, which I didn't care about but it had a filter delete kit. Currently im trying to figure out the no start issue.
So far: Installed a new regulator pig tail, replaced the FPR, installed a new fuel filter, rebuilt the filter head, double checked the rub spots in the FICM harness, checked all inline fuel lines, and reflashed a stock lly tune file...still a no start.

Truck is commanding 7k and only seeing 750 psi when cranking. It is idling at 5500psi.

Balance rates
#1 -4
#2 -4
#3 +5
#4 -4
#5 +1
#6 +3
#7 +10
#9 0

When i gave the truck a little throttle (5%) the actual when up to 19k psi while desired was only 8k..it got worse the more throttle i gave it.

The truck is deleted with a strait pipe, and has a CAI installed. according to the dude everything else is stock.

When i get back from dinner im going to check the injector harnesses and just for fun might replace the glow plug relay.
Anything else you guys can recommend before i call it the injectores bing f*** up?

havent been on in a while, hope everyong is have a good thanksgiving!!
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Wade

2017 Chevy "Sport" 2500hd CCSB ltz stocker

2006 Chevy LBZ - Deleted, 5" Magnaflow, Airdog II 165 4g.

2006 Chevy lbz LT ccsb 360,000 and counting..
5" exhaust, CAI...custom hail damage, peeling paint, etc...

2016 GMC 1500 slt 6.2ltr -wife's ride-

Sold
2016 Denali HD~tuned deleted
05 LLY CCSB~EPR compounds, cognito stuff, DDD Tuning, etc..



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  #2  
Old 11-22-2018, 01:58 PM
NC-smokinlmm's Avatar
NC-smokinlmm NC-smokinlmm is offline
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Definitely ice pick it.
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2010 GMC 1500 RCSB Denali Clone < lifted 22's/33's/ Kooks / Magnaflow / 5.3 / 6l80E / TVS1900 @ 14#'s / BTR Top End / Boosted Bump Stick / Trunion upgrade / 90mm / 10% over / 2.8 griptec / 105 lb ID's / Mayhem built/tuned.

2016 LML CCSB Denali < Lifted 22's/35's, Fox 2.0 < I officially need help.
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  #3  
Old 11-22-2018, 02:28 PM
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Quote:
Originally Posted by NC-smokinlmm View Post
Definitely ice pick it.
ya, that's priority 1 when I get back.

will a bad connection at the injector cause a "no start" condition? fuel system troubleshooting is new to me..so any help is appreciated...

oh and I got an 18 denali 3 months ago...your up big guy
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Wade

2017 Chevy "Sport" 2500hd CCSB ltz stocker

2006 Chevy LBZ - Deleted, 5" Magnaflow, Airdog II 165 4g.

2006 Chevy lbz LT ccsb 360,000 and counting..
5" exhaust, CAI...custom hail damage, peeling paint, etc...

2016 GMC 1500 slt 6.2ltr -wife's ride-

Sold
2016 Denali HD~tuned deleted
05 LLY CCSB~EPR compounds, cognito stuff, DDD Tuning, etc..



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  #4  
Old 11-22-2018, 03:59 PM
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NC-smokinlmm NC-smokinlmm is offline
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Quote:
Originally Posted by NinjaMax View Post
ya, that's priority 1 when I get back.

will a bad connection at the injector cause a "no start" condition? fuel system troubleshooting is new to me..so any help is appreciated...

oh and I got an 18 denali 3 months ago...your up big guy
Waiting on the 20...
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2010 GMC 1500 RCSB Denali Clone < lifted 22's/33's/ Kooks / Magnaflow / 5.3 / 6l80E / TVS1900 @ 14#'s / BTR Top End / Boosted Bump Stick / Trunion upgrade / 90mm / 10% over / 2.8 griptec / 105 lb ID's / Mayhem built/tuned.

2016 LML CCSB Denali < Lifted 22's/35's, Fox 2.0 < I officially need help.
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  #5  
Old 11-23-2018, 10:12 AM
Burn Down's Avatar
Burn Down Burn Down is offline
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Injectors are returning to much fuel would be my guess for low rail pressure... I question how long it was ran with no fuel filter? I would do a compression test and decide if its worth a complete fuel system or needs a total rebuild, either way the price was right
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04.5 CCSB ole blue, built trans, mpi twins, 12.5X @ 108
99' Reg Cab, 1500 2wd, turbo 6.0, th400 build inprogress
05 CCSB Millennium Falcon, built eng, built trans, mpi twins, 11.51 @ 119 1.59 60
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  #6  
Old 11-23-2018, 11:01 AM
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stroke250 stroke250 is offline
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I would agree with Burn Down.
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  #7  
Old 11-23-2018, 11:32 AM
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Quote:
Originally Posted by Burn Down View Post
Injectors are returning to much fuel would be my guess for low rail pressure... I question how long it was ran with no fuel filter? I would do a compression test and decide if its worth a complete fuel system or needs a total rebuild, either way the price was right
I'll grab a tool on the way home and get that done, good a time as any! Can 1 injector cause a no start?
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Wade

2017 Chevy "Sport" 2500hd CCSB ltz stocker

2006 Chevy LBZ - Deleted, 5" Magnaflow, Airdog II 165 4g.

2006 Chevy lbz LT ccsb 360,000 and counting..
5" exhaust, CAI...custom hail damage, peeling paint, etc...

2016 GMC 1500 slt 6.2ltr -wife's ride-

Sold
2016 Denali HD~tuned deleted
05 LLY CCSB~EPR compounds, cognito stuff, DDD Tuning, etc..



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  #8  
Old 11-23-2018, 01:19 PM
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If it's bad enough maybe 1 could do it but unlikely, probably multiple injectors... As NC mentioned ice pick all the injectors and make sure that 2 and 7 aren't pulled to tight. I have not seen bad connectors cause low rail pressure but definitely makes them run like poo.
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Albert

04.5 CCSB ole blue, built trans, mpi twins, 12.5X @ 108
99' Reg Cab, 1500 2wd, turbo 6.0, th400 build inprogress
05 CCSB Millennium Falcon, built eng, built trans, mpi twins, 11.51 @ 119 1.59 60
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  #9  
Old 11-23-2018, 01:27 PM
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Let's see some pics of this beast. I have a 03 being converted to LLY and shortbed with a ZF6 sitting in the garage.
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Albert

04.5 CCSB ole blue, built trans, mpi twins, 12.5X @ 108
99' Reg Cab, 1500 2wd, turbo 6.0, th400 build inprogress
05 CCSB Millennium Falcon, built eng, built trans, mpi twins, 11.51 @ 119 1.59 60
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  #10  
Old 11-23-2018, 02:52 PM
C_Burt96 C_Burt96 is offline
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If its injector knocking usually means they are stuck open. Usually with harness issues the injectors will default to closed. Might just have a couple stuck injectors. But even then it still should fire.
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  #11  
Old 11-23-2018, 04:53 PM
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NinjaMax NinjaMax is offline
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Quote:
Originally Posted by Burn Down View Post
Let's see some pics of this beast. I have a 03 being converted to LLY and shortbed with a ZF6 sitting in the garage.
Heres a few, I'll post up some of the hack job stuff I found tonight...its...impressive to say the least

Sent from my SM-G960U using Tapatalk
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Wade

2017 Chevy "Sport" 2500hd CCSB ltz stocker

2006 Chevy LBZ - Deleted, 5" Magnaflow, Airdog II 165 4g.

2006 Chevy lbz LT ccsb 360,000 and counting..
5" exhaust, CAI...custom hail damage, peeling paint, etc...

2016 GMC 1500 slt 6.2ltr -wife's ride-

Sold
2016 Denali HD~tuned deleted
05 LLY CCSB~EPR compounds, cognito stuff, DDD Tuning, etc..



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  #12  
Old 11-23-2018, 08:14 PM
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clrussell clrussell is offline
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Sinister blue!!
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03 reg cab. Low and slow

07 crew long classic- stolen
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  #13  
Old 11-23-2018, 09:00 PM
NinjaMax's Avatar
NinjaMax NinjaMax is offline
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Quote:
Originally Posted by clrussell View Post
Sinister blue!!
Probably why it was so cheap...I'm sure I'll be served papers soon enough
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Wade

2017 Chevy "Sport" 2500hd CCSB ltz stocker

2006 Chevy LBZ - Deleted, 5" Magnaflow, Airdog II 165 4g.

2006 Chevy lbz LT ccsb 360,000 and counting..
5" exhaust, CAI...custom hail damage, peeling paint, etc...

2016 GMC 1500 slt 6.2ltr -wife's ride-

Sold
2016 Denali HD~tuned deleted
05 LLY CCSB~EPR compounds, cognito stuff, DDD Tuning, etc..



Reply With Quote
  #14  
Old 11-24-2018, 09:08 AM
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NinjaMax NinjaMax is offline
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Well, find this first thing this morning..

Sent from my SM-G960U using Tapatalk
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Wade

2017 Chevy "Sport" 2500hd CCSB ltz stocker

2006 Chevy LBZ - Deleted, 5" Magnaflow, Airdog II 165 4g.

2006 Chevy lbz LT ccsb 360,000 and counting..
5" exhaust, CAI...custom hail damage, peeling paint, etc...

2016 GMC 1500 slt 6.2ltr -wife's ride-

Sold
2016 Denali HD~tuned deleted
05 LLY CCSB~EPR compounds, cognito stuff, DDD Tuning, etc..



Reply With Quote
  #15  
Old 11-24-2018, 11:23 AM
NinjaMax's Avatar
NinjaMax NinjaMax is offline
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Compression test checked out at ~320 psi on all cylinders...I'm going to finish picking the injector harness and go from there. What's the best way to test the #7 injector or any of the harness for continuity?
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Wade

2017 Chevy "Sport" 2500hd CCSB ltz stocker

2006 Chevy LBZ - Deleted, 5" Magnaflow, Airdog II 165 4g.

2006 Chevy lbz LT ccsb 360,000 and counting..
5" exhaust, CAI...custom hail damage, peeling paint, etc...

2016 GMC 1500 slt 6.2ltr -wife's ride-

Sold
2016 Denali HD~tuned deleted
05 LLY CCSB~EPR compounds, cognito stuff, DDD Tuning, etc..



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