my 97 gmc yukon has to be put in reverse to engade the 4x4 and it seems to want to kick in and out of 4 weel drive

15

Asked by dragal Jul 23, 2012 at 10:12 PM about the 1997 GMC Yukon SLE 4WD

Question type: Maintenance & Repair

it has the 5.7 vtech engine as far as i know its all stock

6 Answers

25

Sounds like shifter linkage.At least thats the first place id start looking.had that problem with older chevs 80s models

60,305

Do the lights on the buttons switch from 2 to 4wd? or does it stay lit up on 4wd and feels like is disengages? That system has an electric motor that changes transfer case gears, your push buttons, a TCCM (tranfer case control module), and a vacuum diaphram that engages the front axle. The vacuum system tends to fail due to broken lines or diaphram

15

The light terns in at first then light terns off and seems no kick out the 4x4 and it also whont go in to 4 hi at all

1 people found this helpful.
60,305

So you have 2hi and 4lo? Never 4hi? If so this is a sign thay the shift motor is bad.

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