4X4 causing problems

By ENEMY OCD
January 12, 2005 in Gen III & Gen IV V8 Engines (LS-Based)

Recommended Posts

ENEMY OCD

Posted January 12, 2005

Ok i have a 99 sierra Z71 with a 5.3.. up until tonight the service 4x4 light would come up in the dash and i had the switches adjusted but that didnt seem to work so i went out to my field today to check on some stuff and started to get bogged down in the mud i tried the 4x4 and it engage perfectly so i get through fine go to switch it back to 2h and it wont go it stays in 4h! after restarting the truck it still doesnt go back but then the selector dash goes blank and service 4x4 comes up on the information center!! is this a switch problem or is there something wrong with transfer case also it doesnt seem that i have limited slip in the rear but im not sure anyone know??

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

250.3k
Total Topics

2.7m
Total Posts
Member Statistics

342,688
Total Members

8,960
Most Online

Newest Member
NN16HD
Joined 1 hour ago
Who's Online 1 Member, 0 Anonymous, 659 Guests (See full list)
- BuckWallace

Latest Articles
- GM Recalls 2,700+ Trucks For Airbags That Can Explode While Parked – How To Check Your VIN
  Wednesday at 07:54 PM
- You Can Completely Disable A New Chevy Traverse By Bending The Rear Wiper Arm (No, Seriously)
  Wednesday at 05:47 PM
- Should You Use Engine Fuel Additives In Chevy or GMC? Here’s GM’s Official Statement.
  Wednesday at 02:38 PM
- We’ve Driven the Edition 1 For 4 Years. Here’s Why the Mid-Size HUMMER X Concept is Exactly What GMC Needs.
  May 29
Posts
- 2016 2500hd Steering Issues
  
  By NN16HD · Posted 59 minutes ago
  
  Hi everyone, looking for some input on an issue I’m having with my truck. It’s a 2016 2500HD Crew Cab LT with the 6.0. A couple of months ago I had the pitman/idler arm and tie-rods replaced at a shop with some good quality parts and then professionally aligned after that. Immediately I noticed that the steering is much tighter/heavier feeling and has zero play of any kind. However the steering will not “return to center” at highway speeds now, for example if I’m going around a slight curve with the wheel turned and I let go of the wheel the truck will continue to turn instead of the wheel re-centering like it used to. It makes it so I’m constantly fighting to keep the truck going straight down the center of the road. I should also note the truck does have the “NV8” electronic steering assist. I’m wondering if I need to have the steering control module re-programmed? Or is it an alignment issue? All of the alignment parameters were in spec from the shop. Maybe someone else has had this issue, I appreciate any feedback, thanks!
- Avalanche
  
  By dna9656 · Posted 1 hour ago
  
  How come there's no Avalanche Forum?
- ATTENTION anyone with oil pressure issues
  
  By Marcus2 · Posted 1 hour ago
  
  This is a really old post, but here I am in 2026 overhauling my 1999 GMC Sierra. I had an issue where when I started the truck, the oil pressure on the guage would not move for about 3-4 seconds, then it would start rising and stay there. I thought My sensor was clogged since I had done a couple of fuel treatments with Chevron Techrolene and when I dumped the oil and filter, it was totally black with all the carbon the techrolene had removed. SO, I started looking on Amazon for sensors, and discovered that they are suppossed to have a filter in the port. So I purchased a filter which Amazon swore it was for my truck. I got the old sensor out and discovered there was no filter on the port! I thought to myself, well, that's why the sensor got colgged. I attempted to install the filter, but it would not drop down any further than the top of the hole. There was no room to start the sensor into the port with the filter in there. So, I started to do some research with Chatbox, and discovered the early 5.3L sensors had no filter. ALSO, you can tell if your 1999 (or later)?? model year does not require a filter because your existing sensor has only ONE wire. Later models, (those needing a filter) will have THREE wires. Also, The correct Sensor Is a D1818A / 19244505 for single wire sensors. Hope this saves some of you some time and keeps you from having to cuss out Amazon. Even tho they frequently need it.
- RyanbabZ71's 2019 High Country
  
  By Coastie05 · Posted 4 hours ago
  
  Your truck looks great!
- Tonneau cover
  
  By Coastie05 · Posted 5 hours ago
  
  I just installed a Gator EFX hard trifold cover and am very happy with it. It does leak though, so be aware.
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 · 156 members
- diesel 3.0
  
  Open Club · 279 members
- Texas Owner's Group
  
  Open Club · 371 members
- NorthSky Blue Club
  
  Open Club · 118 members
- Midwest Owner's Group
  
  Open Club · 212 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
  
  KARNUT
  22
2. 2
  
  Atlas
  18
3. 3
  
  Grumpy Bear
  9
4. 4
  
  diyer2
  9
5. 5
  
  mdipasquale20
  6
Show More