Miklo's 2001 Silverado 2500HD Build Thread

Mikloangelo · May 25, 2026

stutaeng said:
Foglights maybe? Did your truck have those?

Yeah it came with fog lights, but this one isnt for them. I have those accounted for

Mikloangelo · May 25, 2026

Found the answer for the green plug. Its the ambient air sensor for the mirror.

Mikloangelo · May 25, 2026

Here is my blinker area. I have 3 large sockets. Not sure why I have 3 considering the blinker assembly only takes two. A white Grey and brown one. Anyone have a clue?

Mikloangelo · May 29, 2026

Next stop is the tuner. Got the outside back together. Will fill fluids tomorrow.
Grille and bumper is pretty busted and will be replaced at some point. The interior is ripped apart, but that can wait until after tuning.

Still didn't find an answer to the small plug next the bottom of the radiator on passenger side.

stutaeng · May 29, 2026

It's a truck again! Congrats!

Where are you getting it tuned? Are you driving it there or just send off tbe ECU?

Mikloangelo · May 29, 2026

Im going to DRTuned in Rockwall.

DRTuned | Rockwall TX

DRTuned, Rockwall. 401 likes · 39 talking about this. Gm/Chevy upgrade, customization, maintenance, and custom fabrication/tuning

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Tuner recommended i tow it to his shop and let him put in basic tune before we start it up for the break in. Then will tune from there

Mikloangelo · May 30, 2026

She's Alive! Got a basic tune in it for now. No leaks so far. Sounds great. No muffler or exhaust past the Y-pipe yet.
Tuner will have it a day or two until I get it back.

stutaeng · May 30, 2026

Awesomeness!

Sounds like a riot waiting to heppen

Mikloangelo · May 30, 2026

stutaeng said:
Awesomeness!

Sounds like a riot waiting to heppen

Absolutely. Ready to see how much horse power it actually has and the final sound after I finish the exhaust.

Mikloangelo · Sunday at 6:10 PM

So while since I have the time not messing with the truck, I've been thinking about what's next on the menu. I plan on tackling the interior. Originally I was just going to re-paint the interior back to the medium-neutral tan, get new carpet and head liner and upholstery, but now im thinking i may go to black. Im doing everything anyways, so i might as well, no? It'll be sometime before im ready to tackle that, maybe next spring after hunting season.

Mikloangelo · Tuesday at 10:08 PM

Got her home and back in the driveway. Tuner said he made 302rwhp in second gear. I expected more, but it being a 4wd 2500hd with stock trans and converter, all terrain tires, and sticking with the clutch fan may have something to do with that.

. Im sure the tuner was a bit more conservative as well considering all those factors.

Mikloangelo · Tuesday at 10:29 PM

On another note. Nothing broke when the tuner started it up and did his thing. No leaks found. So thats a huge weight off my shoulders. My biggest worry was that I damaged the internal transmission pump when mating to the engine. I had a spacer on my crank when found the torque converter binding. Everything I read indicated that I had a 50/50 chance of damaging the pump. So for now it seems im good.