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.

Fless

Staff member
Super Moderator
Joined
Apr 2, 2017
Posts
11,856
Reaction score
24,114
Location
Elev 5,280
Might be rust jacking under the speed sensor mount. Probably break the sensor getting it out if it's OE and in a rusty area, but if you get it out in one piece you can clean off the rust and reinstall.
 

89Suburban

Bull in the china shop
Supporting Member
Joined
Jan 10, 2013
Posts
15,087
Reaction score
41,763
Location
SE PA
For the last few days I get the ABS and traction faults every now and then on startup. Goes away at the next start or later in the day. I’ve scanned it twice and it’s the LR wheel speed sensor circuit C0045_00. Cleaning the connector at the wiring harness had no effect.

Any realistic chance it’s anything other than the sensor? I’ve got an OEM sensor in my shopping cart ready to pull the trigger.
:console:
 

swathdiver

Full Access Member
Joined
May 18, 2017
Posts
19,582
Reaction score
26,270
Location
Treasure Coast, Florida
For the last few days I get the ABS and traction faults every now and then on startup. Goes away at the next start or later in the day. I’ve scanned it twice and it’s the LR wheel speed sensor circuit C0045_00. Cleaning the connector at the wiring harness had no effect.

Any realistic chance it’s anything other than the sensor? I’ve got an OEM sensor in my shopping cart ready to pull the trigger.
Have you unplugged it at the axle tube? Maybe got a rock or debris in there stretching or breaking the wire?
 

pwtr02ss

Full Access Member
Joined
Apr 1, 2013
Posts
11,760
Reaction score
25,248
Location
Tennessee
Yeah, cheaper than a tank of west coast gas for sure!

@swathdiver @Fless those are good suggestions, I’ll inspect the axle today. Not much rust on this truck, it’s always been in a dry climate. But dirt and rocks aplenty!
How many miles? Thats typically been a sign of a worn hub for me in the past. Seems they last around 100k miles, give or take.
 

alpha_omega

Full Access Member
Joined
Mar 15, 2017
Posts
704
Reaction score
1,347
Location
Michigan
I used to write in complete sentences with proper grammar, you know, how we were taught in school decades ago and would get no reply. So for the last ten years or so, I write in ebonics or whatever they call it today and get a response.
You should instead write in cursive (and I don’t mean the Ebonics swearing kind). My nephew was puzzled and thought I was writing in Russian Cyrillic when looked through some blueprints I was drawing up. Poor kids. Now it’s all 1’s and 0’s.
 

Bill 1960

Testing the Limits
Joined
Dec 17, 2020
Posts
1,480
Reaction score
2,862
How many miles? Thats typically been a sign of a worn hub for me in the past. Seems they last around 100k miles, give or take.
67k now. But a worn hub on the rear? I believe you’re thinking of the front? In the rear the tone ring is on the axle shaft and the sensor mounts in the axle tube.

Front hubs are brand new Timken. And the code always says LR wheel.
 
Top