2003 Chevrolet Tracker no 4X4

Tiny
OLDJEEP`
  • MEMBER
  • 2003 CHEVROLET TRACKER
  • 2.0L
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 100,000 MILES
My tracker lost its 4wd, sometimes with the wheels turned all the way to the right it tries to engage. The 4x4 light comes on as it normally would, but there are no crunching or grinding sounds coming from the front end. At first there was a clicking coming from the drivers side front wheel when locked in 4x4 and making an abrupt stop on an icy road, now nothing. The front shaft turns, and the 4x4 actuator behind the bumper activates and then stops, leading me to believe that the actuator, and diaphragm in the front end are both functioning properly. Any help would be greatly appreciated, thanks
Tuesday, January 7th, 2014 AT 6:02 AM

3 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Scan for codes and check to see if tcase actuator is working or getting power
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Tuesday, January 7th, 2014 AT 8:32 AM
Tiny
OLDJEEP`
  • MEMBER
  • 11 POSTS
I believe that the transfer case in a tracker is always transferring power to the front diff. Shifting into 4wd activates a compressor which engages the front end, the front shaft is always spinning
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Tuesday, January 7th, 2014 AT 12:05 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
I goofed, see if the tcase switch is getting power from pcm and then see if ground for compressor motor is any good first I am sending a diagnostic for checking in pic i'll try to make as large as I can.
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Tuesday, January 7th, 2014 AT 12:14 PM

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