how do you disconnect the 4 wheel drive on a 1999 GMC sierra, mine is stuck in 4 low i think i just want to disconnect the whole 4 wheel drive

Asked by Dec 04, 2011 at 12:57 PM about the 1999 GMC Sierra 1500 SLE 4WD Extended Cab LB

Question type: Maintenance & Repair

My truck is stuck in 4 wheel drive is there an easy way to disconnect the 4 wheel drive

3 Answers

10

Not sure how close my 03 Sierra 1500 is but, behind your transmission is your transfer case. Coming out of the transfercase on the driver side is the front drive shaft. (Its a quarter of the size of the rear drive shaft) it runs from the transfer case to the front differential. Mark with chalk or a crayon the orrientaion of the drive shaft to the differential flange. Remove the boot clip and slip the dust boot off the transfercase. Remove the four bolts from the universal joint and pry gently with a flat screw driver. You could lightly tap it with a hammer to loosen rust. Slide it forward supporting both ends and your done.

1 out of 1 people think this is helpful.
745

if your stuck in 4wd low< disconecting the front shaft wont do anything, being in 4 low limits ur speed going forward your never supposed to exceed 25mph. to get it out of 4x4 theres a shift acctuater on the case (depending on year of truck and options) youve got to get a power souce to the motor to shift it out of the 4wd low (not sure on the exact schematic) if still no luck you"ll have to have a garage fix the issue of being stuck in low range, i have see the contacts on the older truck 88-94 get dirt and loose connection with the motor and simply need to be cleaned and/or replaced

4 out of 4 people think this is helpful.
40

I had same problem. I had to slow vehicle to 3-5 mph switch to neutral hold button till light flashes on 2 wheel drive.Put truck into park after rolling a quarter of a mile or more.Push and hold 2 wheel drive and put into drive then only go 3-5 mph. keep repeating the process and it will eventually go back in 2 wheel drive. Good luck and be minded of low speed.

4 out of 4 people think this is helpful.

Your Answer

Add photo

Related Questions

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 64,974 nationwide Sierra 1500 listings starting at $1,500.

ZIP:

Search GMC Sierra 1500 Questions

GMC Sierra 1500 Experts

#1 dragonflyoffshore
dragonflyoffshore
Reputation 4,850
#2 John Saffrahn
John Saffrahn
Reputation 3,420
#3 Glenn Clingenpeel
Glenn Clingenpeel
Reputation 3,020
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,049 Great Deals out of 160,010 listings starting at $999
Used Ford F-150
2,425 Great Deals out of 210,591 listings starting at $895
Used Dodge Ram 1500
447 Great Deals out of 11,535 listings starting at $700
Used Toyota Tundra
546 Great Deals out of 32,264 listings starting at $2,800
Used GMC Yukon
405 Great Deals out of 16,399 listings starting at $1,800
Used Toyota Tacoma
544 Great Deals out of 37,926 listings starting at $2,900
Used Chevrolet Tahoe
630 Great Deals out of 27,860 listings starting at $600
Used Ford F-250 Super Duty
398 Great Deals out of 47,773 listings starting at $400
Used Chevrolet Camaro
142 Great Deals out of 35,647 listings starting at $1,995
Used GMC Sierra 2500
4 Great Deals out of 163 listings starting at $2,400

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
34 Great Deals out of 38,986 listings starting at $21,410
2016 GMC Sierra 1500 For Sale
91 Great Deals out of 3,830 listings starting at $18,810
2015 GMC Sierra 1500 For Sale
127 Great Deals out of 4,091 listings starting at $14,999
2014 GMC Sierra 1500 For Sale
140 Great Deals out of 4,452 listings starting at $14,495
2013 GMC Sierra 1500 For Sale
72 Great Deals out of 2,309 listings starting at $8,096