4wd issues
#1
CF Beginner
Thread Starter
Join Date: May 2012
Location: Alabama
Posts: 6
Likes: 0
Received 0 Likes
on
0 Posts
4wd issues
I need some advice. I recently bought a 1999 Z-71. 5.3 liter V-8. When I first start the truck it will usually shift into 4wd, but after a few minutes the "service 4wd" light comes on and it won't shift anymore. When it does shift, it shifts just fine. I don't know if it's the actuator or switch or something else. Any advice would be greatly appreciated.
Joshua
Joshua
#2
CF Beginner
Thread Starter
Join Date: May 2012
Location: Alabama
Posts: 6
Likes: 0
Received 0 Likes
on
0 Posts
This is my first 4wd so Im having to learn as I go. But if anyone could point me in a direction to start at. I know actuators have caused problems for many people but I don't know much about 4wd systems. Please help.
#4
i had a 99 gmc 5.3 z71 did the same thing. sometimes it would work until you hit the button then no lights and all of a sudden the service 4wd light came on. went on ebay ordered a switch for 40$ worked perfect after that.
#6
CF Active Member
Join Date: Dec 2010
Location: Clovis, CA
Posts: 136
Likes: 0
Received 0 Likes
on
0 Posts
Before spending any money I'd check all the grounds especially the one under driver door on frame. I have three silverado's two with electric shift and one manual. On my 2001 1500 I had to replace the shift modual located behind the instrument panel on the left, Also replace the shift motor on the TX case. Went thru three of them before finding a A-1 cardone rebuilt. The switch was replaced but did no good. As for Rockauto, I use them alot as there prices are good and shipping is fast. Good luck
Trending Topics
#9
05 silverado 4wd problems
I am not sure what the actuator is but last weekend I went up to the mountains to play in the snow. I used my 4wd and by the end of the weekend it was acting up. When I start my truck, sometimes it will be in 4 low or hi or the little red light will be on and it always says service 4wd. If its in 4 low or hi I have to turn the truck off and then back on and hope it has shifted out. I have the Z71 model. Any help or suggestions would be appreciated. Thanks
#10
CF Senior Member
Join Date: Aug 2011
Location: Slidell, Louisiana
Posts: 343
Likes: 0
Received 0 Likes
on
0 Posts
For Brosebo it sounds like its the switch on the dash that is giving you problems. I have seen alot of problems like yours solved with replacing the switch the four wheel drive. Also for best results in getting a response, I would start a new thread about your problem rather than jumping in on one
Thread
Thread Starter
Forum
Replies
Last Post
D Chevy
Tahoe & Suburban DIY and Useful Threads
0
September 17th, 2012 12:06 PM
04Greg
Silverado, Sierra & Fullsize Pick-ups
2
March 2nd, 2011 9:46 AM
vpbho
Silverado, Sierra & Fullsize Pick-ups
1
November 1st, 2010 10:08 AM
waller2003
Tahoe & Suburban
0
October 19th, 2009 9:49 PM
DianaT
General Tech
4
November 29th, 2007 12:12 AM