5.3LS won’t rev?

[iamtherealJayy]

Anyone got any tips to get the flange studs out of the exhaust manifold. I’ve tried everything I have access to and even bought a MAP gas torch. I cannot get them loose.

 

[Bextreme04]

Anyone got any tips to get the flange studs out of the exhaust manifold. I’ve tried everything I have access to and even bought a MAP gas torch. I cannot get them loose.

My 2011 Suburban blew the trans and I needed to get the exhaust off to get the trans out. Totally rusted on. I ended up having to just cut the stud off to get the y-pipe off. Then I couldn't get the studs out to replace them, so I just bought a brand new dorman replacement. It was like $40 and well worth the time saved in not trying to extract the broken stud.

 

[iamtherealJayy]

You see I don’t know exactly what the engine came out of so I don’t know what the replacement needs to be, I’d spend $40 on a manifold. I spent $50 on a map gas torch that got me nowhere.

 

[iamtherealJayy]

A doorman replacement for an 01 Silverado is $110 at oreillys.. I’ll keep trying to get the studs out

 

[Bextreme04]

A doorman replacement for an 01 Silverado is $110 at oreillys.. I’ll keep trying to get the studs out

This is the one I got. It was two years ago... looks like the price has gone up since then, just like everything else

https://www.amazon.com/dp/B000E35VUC/

 

[iamtherealJayy]

Well I’ve tried just about everything. Apparently map gas can’t get it hot enough I guess. I’ve tried candle wax, different wd40’s, lots of heat, impacts, vice grips, pouring cold water on it, tapping it with a sledge hammer aggressively, just about everything. This is exhaust is what’s holding me back from even going for a test drive.

 

[rusted nuts]

Well I’ve tried just about everything. Apparently map gas can’t get it hot enough I guess. I’ve tried candle wax, different wd40’s, lots of heat, impacts, vice grips, pouring cold water on it, tapping it with a sledge hammer aggressively, just about everything. This is exhaust is what’s holding me back from even going for a test drive.

Only way I have ever remove the studs is to heat the manifold red hot with oxygen / acetylene torch.

 

[Camar068]

you could always weld your exhaust to whats there. Not the greatest, but I'm on my 2nd vehicle in life that had the exhaust welded to the headers/manifolds.

 

[iamtherealJayy]

At this point all I’ve got left is drill it out or replace it, the joint had a leak so I bought new studs and the last stud that had threads lost them during disassembly. I need to get this fixed then I can finish out my 2.5” exhaust since apparently dual 2” is too small lol

 

[Ricko1966]

I do not know what your manifold situation is/looks like when I was 15 no decent supply of tools yet I drilled a manifold all the way through the studs and used nuts and bolts to hold it together,no idea if you can get nuts on the backside. I'd use oxygen acetylene,but I have oxygen acetylene.

 

[iamtherealJayy]

Ruined 3 drill bits drilling one stud out, ordered a replacement manifold. Maybe I’ll get this truck finished one day

 

[louu]

This is what I have. This will let you do anything you could ever want on an 0411 including whole OS read/write, segment swap, datalog, etc... using TunerPro RT, Universal Patcher, LsDroid, or PCM Hammer/logger. Thats all free software once you have the tool.
https://obdxpro.com/product/obdx-pro-vt/

I also have HP Tuners, because the free ware can't tune my newer 2011 and it needed it badly after a regear and future turbo and/or engine swaps. HP tuners is much more user friendly, but WAY more expensive that the freeware option.

I'm new to all this so can I ask one dumb question? I've been looking at this dongle a lot. Will it work with a bench harness to delete vats and rear o2's?

 

[iamtherealJayy]

I got a fixd scanner and I’ll hook it up after I get the exhaust manifold replaced.

 

[born2Run83]

At this point all I’ve got left is drill it out or replace it, the joint had a leak so I bought new studs and the last stud that had threads lost them during disassembly. I need to get this fixed then I can finish out my 2.5” exhaust since apparently dual 2” is too small lol

Try AeroKroil. It’s what we use in the Aerospace industry.

https://www.amazon.com/dp/B01IU9TZ1M/

 

[Bextreme04]

I'm new to all this so can I ask one dumb question? I've been looking at this dongle a lot. Will it work with a bench harness to delete vats and rear o2's?

Yes. I have it set up on my bench with Tunerpro to do the initial OS setup for my build. You can use universal patcher to do a VATS and Rear 02 delete without even needing to find an XDF or anything for your particular OS.