tigers2007

What is your actual question or are you just venting?

This is great news and thank you for letting us know about your outcome.

Did you update the software? Either find someone with a Tech2 and laptop (or just an MDI and a laptop) or take it to the dealer.

Have you actually done this for these HD trucks? I’m not sure if I need to spend the $15 in new bushings or $300 for two new entire LCA assemblies.

Remember that your GMT800 Suburban 2500 has two fuel tanks and two senders. Do you have access to a Tech 2?

It’s either the door switch built into the latch assembly or **most likely** the door wiring harness. It takes about 45 min to replace. Expect a lead time of 3-weeks to get the harness directly from GM. It is about $90. I just replaced both driver door harness assemblies in my ‘09 Silverado AND Tahoe and BOTH vehicles gremlins went away. I was having issues with intermittent RAP, dome light, power mirror control, power window not going up blah blah.

This might be the proper way to go. I did the software disable via HP Tuners and I’m still burning through oil. Sent from my iPhone using Tapatalk

I was going to go the other direction with my ‘08 Suburban 2500. I acquired a 3.73 front diff (same part for 1988-2010!) for $150 and was going to do the rear end swap myself. I ended up selling it before I got around to the project. So, maybe you can search for a 4.10 front differential (car-part.com) and then a 4.10 kit for the rear. It’s not rocket science. Sent from my iPhone using Tapatalk

Well if the TPS is bad, rapidly moving the butterfly could easily cause a fault as the electric stepper motor position is not in alignment with what the TPS is reading thus causing a fault - reduced engine power for safety. Basically to prevent an MCAS issue lol Sent from my iPhone using Tapatalk

Wow I didn’t think that GM used the electronic TB in MY2002. Funny as my Tech 2 asks me if it has the electric throttle for my 2002 6.0 2500HD. Your part numbers from RockAuto are: 17113659 for the entire assembly $250ish (with RPO NW7) 17123852 for the sensor without RPO NW7 $32 (TH149 at big box stores) 17114566 for the sensor with NW7 $53 (TH298 at the big box stores) That has got to be a first generation LS electronic throttle as it looks huge. I’d started with the sensors. Maybe even from your local big box store so you can return it easy if it doesn’t fix the problem. If you do order from Rock don’t forget to use a 5% off coupon code. Sent from my iPhone using Tapatalk

I’m referring to the actual sensor on the throttle body. What year is your truck? GM has had a lot of issues that go back from 2003 to 2012. Some people spend the $110-170 for a new entire throttle body assembly. The sensor kit is about $28. Takes about 15 min to replace. Sent from my iPhone using Tapatalk

This part is in stock at your local big box auto parts store and also your local dealer. What year is the OP’s truck? It may be covered under recall; my ‘09 Tahoe was covered under GM recall last January. I ended up doing it all by myself as my dealer had a two week backlog and Amazon delivered the part in 20 hours. The software update is easy if you have a Windows 7/10 laptop, Tripp Lite USB to Serial dongle, and a Tech 2 (clones work too). Sent from my iPhone using Tapatalk

Personally I’d hit it quick with a torch; I mean very quickly and then work it back and forth with an impact on low. You don’t want to snap it off. I’ve been there done that. What a hot mess you have on your hands. I’ll be doing the same job this Spring and replacing with Nickle-Copper lines. Sent from my iPhone using Tapatalk

Yuck that is a HELL of a job. There are so many for sale out there already converted at the factory when new. I dumped my clean ‘08 ext cab 4x4 for $15k with a new Allison 1000 and almost new Western V-plow. I originally paid $7.5k for the truck and used it for a few years. Anyways, replacing the fuel system is actually very simple. I did it with my Duramax for about $80 with Parker high-temp hoses. Note that there is a diesel fuel cooler on the bottom near the tank. Sent from my iPhone using Tapatalk

Missing information here. Are you getting any DIC messages “Low Engine Power”? Etc. The 2003 was the first year of the electronic throttle body and is prone to issues. Check the notorious ground bolts too. Sent from my iPhone using Tapatalk