Duramax Diesels Forum Truck of the Week
  #16  
Old 03-13-2020, 01:43 PM
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don't know sh!t about IFS

 
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Quote:
Originally Posted by nwohiochevyguy View Post
So I did a HSP Y bridge and pipes last fall on my 2005 LLY when I upgraded my turbo.

Have had a small drop in MPG and now under harder acceleration I get ALOT of black smoke and she falls on her face. I know it is a boost leak, tester will be build and I will run the test.

My question is when I put the Y on I had one bolt in the head that would not torque down, suspect threads are shot in the head as the bolt looked fine.

If I drill and tap that hole any thing that I could get into if I step it up a size to get to good material?
Also what size are those bolts, I donít recall.

I have not done the boost test yet, but this bolt not torquing down has me believing that this is where I will find my leak.


Yes I cleaned my air filter & MAF Sensor last night with no change in her behavior.
if you changed the turbo, you needed a re-tune. its going to work vastly different than the stock one.
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Mike L is my role model. I want to be like him when I grow up.
James

2002 LB7, LLY, LBZ, LMM, LML, L5P 2500HD CC/LB dmax/6sp alli "The Limo"

2020 L5P 2500HD CC/LB dmax/10sp alli "The New Limo" staying stock........ish

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  #17  
Old 03-13-2020, 02:42 PM
nwohiochevyguy nwohiochevyguy is offline
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Quote:
Originally Posted by gmduramax View Post
If thereís nothing strange in the data log, there is nothing wrong with the tune. You need a new mechanic.



I have not met up with my tuner yet to get some data.


Beginning to think that myself.
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2005 LLY CCSB 4x4 LT
NO CAT, NO Muffler, stock straight piped
Built Trans (billet shafts, triple disk etc.)
65mm Built turbo w/ Highflow vains

HSP Y Bridge & Pipes
S&S Injectors
LBZ CP3
AirDog 165

Heads upgraded & Studed
AFE Intake, LBZ Turbo MP
EGR Deleted
PPE UP & Down Pipes
Powerstop Z36 rotors & Pads
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  #18  
Old 03-13-2020, 03:01 PM
nwohiochevyguy nwohiochevyguy is offline
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It was retuned after the turbo swap
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2005 LLY CCSB 4x4 LT
NO CAT, NO Muffler, stock straight piped
Built Trans (billet shafts, triple disk etc.)
65mm Built turbo w/ Highflow vains

HSP Y Bridge & Pipes
S&S Injectors
LBZ CP3
AirDog 165

Heads upgraded & Studed
AFE Intake, LBZ Turbo MP
EGR Deleted
PPE UP & Down Pipes
Powerstop Z36 rotors & Pads
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  #19  
Old 03-13-2020, 03:06 PM
Chevy1925's Avatar
Chevy1925 Chevy1925 is online now
don't know sh!t about IFS

 
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Location: Phoenix Az
Posts: 16,785

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Quote:
Originally Posted by nwohiochevyguy View Post
It was retuned after the turbo swap
not well enough
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Quote:
Originally Posted by JoshH View Post
Mike L is my role model. I want to be like him when I grow up.
James

2002 LB7, LLY, LBZ, LMM, LML, L5P 2500HD CC/LB dmax/6sp alli "The Limo"

2020 L5P 2500HD CC/LB dmax/10sp alli "The New Limo" staying stock........ish

Tailgate Crew Member #4
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  #20  
Old 03-16-2020, 07:18 PM
nwohiochevyguy nwohiochevyguy is offline
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Data logged tonight by my tuner.

Have an injector (maybe 2) acting up. Causing truck to max out at 80% fuel flow on hard acceleration.
New S&S injectors put in 25K Miles ago (14 months ago) when HG were done. Hope the shop makes it right.
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2005 LLY CCSB 4x4 LT
NO CAT, NO Muffler, stock straight piped
Built Trans (billet shafts, triple disk etc.)
65mm Built turbo w/ Highflow vains

HSP Y Bridge & Pipes
S&S Injectors
LBZ CP3
AirDog 165

Heads upgraded & Studed
AFE Intake, LBZ Turbo MP
EGR Deleted
PPE UP & Down Pipes
Powerstop Z36 rotors & Pads
Reply With Quote
  #21  
Old 03-26-2020, 09:38 AM
nwohiochevyguy nwohiochevyguy is offline
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Posts: 12

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So did the pressure test and everything is holding fine.

Looks like the problem is injector related - suspect bad fuel. New Injectors 25K miles ago after adding an Airdog 165G lift pump.
VERY frustrated with the upgrades done during HG replacement. HG w/ ARP Studs, Water Pump, S&S Injectors, LBZ CP3 upgrade, Remanufactured heads due to crack (which machine shop did not find)
First valve seals were damaged when remanufactured heads were built / had to be replaced.
Then wrong glow plugs were installed, took shop 3 trips back into shop to figure that out.
Then return fitting o-rings were damaged on reassembly. Replaced with Bosch lines after Dorman failed in a few months after fixing it in a parking lot 500 miles from home.
Then $1000 in labor & parts for 4 different antifreeze leaks.
Then Water pump replaced under warranty / was replaced during HG job.

Now it has to go back to have the injectors pulled and tested / cleaned etc.
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2005 LLY CCSB 4x4 LT
NO CAT, NO Muffler, stock straight piped
Built Trans (billet shafts, triple disk etc.)
65mm Built turbo w/ Highflow vains

HSP Y Bridge & Pipes
S&S Injectors
LBZ CP3
AirDog 165

Heads upgraded & Studed
AFE Intake, LBZ Turbo MP
EGR Deleted
PPE UP & Down Pipes
Powerstop Z36 rotors & Pads
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  #22  
Old 03-27-2020, 12:25 PM
fl0w3n fl0w3n is offline
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Join Date: Jan 2015
Posts: 182
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Those are all issues from the same shop? And you’re taking it back there?

I know we only have a small portion of the big picture being this is the internet and all, but I’d be looking at having the original shop pay a new shop to fix it right. I understand wanting to have them stand by their work, but sounds like you’re just digging a deeper hole with the more things they touch the more problems you’ll have down the road.
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  #23  
Old 03-28-2020, 08:49 AM
nwohiochevyguy nwohiochevyguy is offline
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Posts: 12

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They installed the new injectors, so if under warranty they will cover it.

But I don’t suspect that will Be the case.

This is the last thing they will touch on my truck. If it was not for the potential warranty coverage I would be doing this myself.
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2005 LLY CCSB 4x4 LT
NO CAT, NO Muffler, stock straight piped
Built Trans (billet shafts, triple disk etc.)
65mm Built turbo w/ Highflow vains

HSP Y Bridge & Pipes
S&S Injectors
LBZ CP3
AirDog 165

Heads upgraded & Studed
AFE Intake, LBZ Turbo MP
EGR Deleted
PPE UP & Down Pipes
Powerstop Z36 rotors & Pads
Reply With Quote
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