In this video I show the highlights of removal and installation of a turbo on a Chevrolet Duramax 2500HD truck. Here is a link to the full rebuild video. • Duramax LBZ Turbo Rebuild
I completely agree with chasing the treads on the turbo and manifold. The first time I took my up pipe off for the egr delete I did not even think to chase them and had a difficult time putting the bolts back in. This time while doing the 66mm turbo rebuild I made sure all the bolts went in by hand. As for the heat shield I managed to get it out by only bending it a bit but decide to use a turbo blanket for a better look. Great video
Thanks for taking the time to make the video Mike. I followed this and your other turbo rebuild video and managed to clear a P0299 and P2563 code from my '06 LBZ. After splitting the heat shield with a sawzall, I just made a small repair strip from some galvanized duct metal I had laying around (it bends easily to follow the contour of the heat shield) and attached it using short self tapping metal screws. Good as new (actually probably better thanks to the use of a light coat of nickel anti seize in a few spots!)
Nice explanation and video. Also nice to see someone take a lot of pride in their work and do the little extra things that make a difference but typically go unnoticed.
Thanks again for a great video that is helping me reinstall the turbo. Note, I removed both the driver’s side up-pipe and heat shield and they easily both came out the top and went back in via the top after installing the turbo.
One question… about to fire it up… since we didn’t replace the whole turbo or put a new vane position sensor is there any need to have that sensor relearned?
No, shouldn't have to go through a relearn procedure. I used a new control valve on mine and didn't have to either. Did you put some extra oil in the oil supply port just before installing the banjo bolt? If not, I would just to give a little extra insurance until oil pressure fully gets to the turbo. The oil supply was the last thing I connected and I put oil in it just before torquing the banjo bolt. Just a thought.
I'm planning on swapping the old turbo with 400k miles on my dads lly duramax 3500. I want to start soaking the 12 point bolts asap. The 6 lower ones are easy enough to spray. How did you spray and soak the upper 6 at the pedistool? Were you able to get to them by only removing heat shield? Thanks so much for the video
Yes, the ones at the end of the exhaust manifolds were ready to reach so they fit hit with penetrant multiple times. The 6 fasteners at the top of the up pipes to pedestal were sprayed with penetrant after ceiling the turbo outlet so I could get access to them and soaked the night before removal. Thanks for watching and glad you found it helpful. Mike
Nice job Mike would you suggest changing the fatoryoil feed line on an 06 LBZ when replacing the turbo. I noticed oil in the valley however the oil feed line showed no sign of leaking however the aluminum heat sheath did.
I would suggest changing the crush washers in the banjo fitting of the oil pressure feed line minimum and possibly the oil drain line if there's any residual oil under the turbo.
I had repair shop replace turbo in same truck as yours. I was surprised to see they included an oil change and filter. I had less than 1000 mile from last change. Is there any reason they had to drain oil to replace turbo? I did not see that in your instructions.
It's good practice to replace oil and filter after opening up the engine to avoid contamination but not absolutely necessary. For a turbo replacement the only exposed oil passages are the oil pressure supply line and turbo drain tube, so not quite as critical as say having the heads off, but still a good practice. I did replace my oil and filter but it was closer to being due, just didn't show it in the video. Thank you for taking the time to watch. Mike
Thanks for responding. Always impressed with what you guys do. I do simple stuff and usually get frustrated still. Everything is so tightly fit and require way to much force to remove bolts, clips, hoses, etc. Knuckles always bloodied up.
So my OBD is telling me I have a smaller engine (5.7). The 2004 GMC Duramax diesel is a 6.6 engine. Is that normal to have a mismatch of does it matter?@@zmotorsports62
Ok, that's odd. I have not run across that before. If it's a generic code reader I would be suspect of that first because the ECM should be programmed to a VIN and it should have the correct RPO's assigned to it built into the programming. Sorry, I've never seen that before.
