What did you do to your NNBS GMT900 Tahoe/Yukon Today?

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

George B

¯\_(ツ)_/¯
Joined
Feb 5, 2020
Posts
7,879
Reaction score
18,976
Location
Oconomowoc, Wisconsin 53066
My favorite penetrant...
Nd9GcT9T0FFlt3rqf9-GjbauzVPLMsQNgekPaNhwA&usqp=CAU.jpg


Because, F%#k that rusty ****.
 

cfmistry

Full Access Member
Joined
Dec 5, 2018
Posts
249
Reaction score
424
Well I'm stumped and frustrated. The left front corner lamp lights up as a parking light, but not as a blinker. I changed the bulb, nothing. I changed the headlight wiring harness, nothing. Why could this be happening? A poor ground for the turn signal? How would I even remedy that??
 

kbuskill

***CAUTION*** I do my own stunts!
Joined
Mar 11, 2017
Posts
5,819
Reaction score
9,820
Location
NE. FL.
Actually I saw a test somebody linked here and Aerokroil did worse than PB Blaster, and WD40 did slightly better than PB Blaster at loosening rusted bolts. I’ve been using WD40 forever and find it works at least as good as PB plus it’s good for lots of other stuff.

I like Project Farm and trust his results, with one caveat... if I were paying full price for Kroil then it would definitely sway my decision, however every time I have ever ordered any Kreen they have always sent me a can of Kroil for "free" and I have to say it is some really good stuff.

I have an old engine hoist/cherry picker that had been sitting out in my backyard for many years with the heavy cast rollers/casters buried in the sand. When I finally needed it the casters were rusted and seized. I layed it over on it's back and got as much dirt and sand off as I could and then sprayed them down with Kroil and let them sit for a few minutes. I then smacked them with a hammer and sprayed them again. They freed up and rolled like new. I was truly surprised as I didn't really expect them to be usable again.
 

kbuskill

***CAUTION*** I do my own stunts!
Joined
Mar 11, 2017
Posts
5,819
Reaction score
9,820
Location
NE. FL.
Well I'm stumped and frustrated. The left front corner lamp lights up as a parking light, but not as a blinker. I changed the bulb, nothing. I changed the headlight wiring harness, nothing. Why could this be happening? A poor ground for the turn signal? How would I even remedy that??

You checked the fuses?

Does your left rear turn signal work?
 

cfmistry

Full Access Member
Joined
Dec 5, 2018
Posts
249
Reaction score
424
You checked the fuses?

Does your left rear turn signal work?

Ok now I feel like an idiot. I checked all the fuses yesterday and didn't see one specifically for the left turn signal. I checked it just now (thanks to your suggestion) and saw it was partially burned. Switched it out and I'm back in action. Sorry to bother everyone for such a stupid thing!
 

kbuskill

***CAUTION*** I do my own stunts!
Joined
Mar 11, 2017
Posts
5,819
Reaction score
9,820
Location
NE. FL.
Ok now I feel like an idiot. I checked all the fuses yesterday and didn't see one specifically for the left turn signal. I checked it just now (thanks to your suggestion) and saw it was partially burned. Switched it out and I'm back in action. Sorry to bother everyone for such a stupid thing!

No worries... it gets a lot of people.... glad you figured it out.

The older vehicles didn't have separate fuses for left and right turns usually.
 

Doubeleive

Wes
Supporting Member
Joined
Nov 7, 2017
Posts
30,478
Reaction score
47,822
Location
Stockton, Ca.
Well I'm stumped and frustrated. The left front corner lamp lights up as a parking light, but not as a blinker. I changed the bulb, nothing. I changed the headlight wiring harness, nothing. Why could this be happening? A poor ground for the turn signal? How would I even remedy that??
edit nevermind, lol
 

the_tool_man

Full Access Member
Joined
Oct 15, 2018
Posts
837
Reaction score
1,994
Location
Upstate South Carolina
Agree, Run the motor for a few minutes to warm the pipes up then hit with PB and they should come right out....
That's exactly what I did. They came right out. I was able to get them out and in with a 22mm open end wrench. But it was an ordeal to snake the wrench in there with enough room to move it. I need to get me one of them socket thingies.
 
Last edited:

Just Fishing

Can't fix stupid
Joined
Aug 30, 2020
Posts
4,487
Reaction score
10,082
Location
Utah
i have a mapp gas plumbers torch, works great for things like that.
Gets hot enough to get a mild glow on the exhaust.

Old trick i use to do was to do a short sprint on the freeway for like 10min.
Then jump under there and pop the o2 sensors loose/off.
Trick there was to get some good load, load being the important part for them getting actually hot.
 

wsteele

Full Access Member
Joined
Dec 26, 2020
Posts
1,731
Reaction score
2,355
The operation was a success and the patient is resting comfortably with four new O2 sensors.

No big glitches I did use the aerosol kroil on top of the WD40 and the pipes on both sides of the cats were hot when applied. Frankly, the clips and push fasteners were as much fiddling as removing the sensors themselves.

The new sensors came with anti-seize on the threads and I chased each bung’s thread with a little adapter that came with my cheapo sensor socket set, so hopefully when the time comes and they need replacing again (which I assume will be sooner than this go around), it will be similarly painless. Actually the biggest pain was the sand getting knocked off the frame and falling into my eyes. I know, I know, safety glasses...

That is all... :)
 

89Suburban

Bull in the china shop
Space X Supporting Member
Joined
Jan 10, 2013
Posts
17,812
Reaction score
50,741
Location
SE PA
The operation was a success and the patient is resting comfortably with four new O2 sensors.

No big glitches I did use the aerosol kroil on top of the WD40 and the pipes on both sides of the cats were hot when applied. Frankly, the clips and push fasteners were as much fiddling as removing the sensors themselves.

The new sensors came with anti-seize on the threads and I chased each bung’s thread with a little adapter that came with my cheapo sensor socket set, so hopefully when the time comes and they need replacing again (which I assume will be sooner than this go around), it will be similarly painless. Actually the biggest pain was the sand getting knocked off the frame and falling into my eyes. I know, I know, safety glasses...

That is all... :)

Yeah man good job!!
 

Forum statistics

Threads
137,671
Posts
1,989,103
Members
102,675
Latest member
j_jerry79

Latest posts

Back
Top