Service 4wd, Speed Sensor

By chuck4wd
August 6, 2010 in Ask A GM Technician

Recommended Posts

chuck4wd

Posted August 6, 2010

I have a 05 Z71 with a service 4wd messeage. I brought it to a shop to get the code read. We got a speed sensor/anti-lock brake code. I'm leaning towards the speed sensor. The truck sometime switches to 4wd while driving, the switch sometime will not light up or the red netureal light is on. If you turn the truck off and on again, some times you can get the 4wd to work. Where is the speed sensor and how hard is it to change. Thanks

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

Recently Browsing 0 members
- No registered users viewing this page.
Forum Statistics

250.4k
Total Topics

2.7m
Total Posts
Member Statistics

342,838
Total Members

8,960
Most Online

Newest Member
ar0517
Joined 4 hours ago
Who's Online 4 Members, 0 Anonymous, 524 Guests (See full list)
- Yotaman
- hotfish
- e.p.
- OnTheReel

Latest Articles
- Hummer Turns 25 and GMC Brought the H2’s Yellow Back
  Wednesday at 06:04 PM
- What’s New for the 2027 GMC Yukon and Yukon XL
  Monday at 06:15 PM
- Got a “Service Door Latch” Alert? Fix It in a Minute
  July 9
- GM Recalls Cadillac VISTIQ Over Power-Folding Seats
  July 8
Posts
- give me some tips to make my truck look better
  
  By ar0517 · Posted 4 hours ago
- GM Hard Folding Tonneau by REV review
  
  By cautious optimist · Posted 5 hours ago
  
  This is a really late reply but I just found this thread. They won't sell the hinges. I've gone 7 rounds with them. Their solution is to buy a new cover. I'm about to buy a new cover and it won't be a Bakflip. It also won't be from realtruck.com.
- 2 speed transfer case optional now?
  
  By Chuck FB · Posted 8 hours ago
  
  Yes, and also pulling heavy trailers or a large camper up steep grades as well as descending grades such as the more rustic off road camping locations and using engine braking with that low gearing as well as soft ground can just suck the power . I realize pickups these days tend to have an over all lower first gear ratio compared to automatic transmission pickups from years back so that has helped a lot in its ability in high range but there comes a point if in four wheel drive the torque runs out at the wheels, certainly with a gas engine. They don't put two speed transfer cases on pickups for a cool factor, they have a function if one needs that massive torque to the wheels that high range can't deliver.
- Grumpy Bears 2015 Silverado 2WD
  
  By Grumpy Bear · Posted 9 hours ago
  
  Notes 7/18/2026 3,400 miles on this batch of Mobil 1 Euro 5W40 since the GDI pump replacement. Alcohol runs very clean when ring seal is tight and the sump isn't getting hosed with fuel. Checked oil level at fill up today as is my practice and grabbed a white Kleenex to look at the color. What color? I was going to change it but.....
- 2 speed transfer case optional now?
  
  By Another JR · Posted 9 hours ago
  
  4 low is really nice on steep boat ramps.
GM-Trucks.com Clubs
- Black Truck Club
  
  Open Club · 612 members
- White Truck Club
  
  Open Club · 380 members
- Canadian Owners Club
  
  Open Club · 282 members
- Red Truck Club
  
  Open Club · 157 members
- diesel 3.0
  
  Open Club · 281 members
- Texas Owner's Group
  
  Open Club · 371 members
- NorthSky Blue Club
  
  Open Club · 118 members
- Midwest Owner's Group
  
  Open Club · 213 members
- 2015 Custom Sport Club
  
  Open Club · 5 members
- GM Snow Plowing Club HD
  
  Closed Club · 14 members
Popular Contributors
- Week
- Month
- Year
- All Time
1. 1
  
  Grumpy Bear
  19
2. 2
  
  Chuck FB
  16
3. 3
  
  newdude
  12
4. 4
  
  txab
  10
5. 5
  
  CamGTP
  8
Show More