transferase engages in to four wheel high but not four wheel low?

2002 CHEVROLET S-10
18,045 MILES • 4.3L • V6 • 4WD • MANUAL
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PAUL KANE
  • MEMBER
  • 1 POST
Transferase does not engage in 4-wheel low.
Sep 12, 2022 at 4:16 PM
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JACOBANDNICKOLAS
  • ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Hi,

If it will shift into 4wd high but not low, it could be a couple things. For example, it could be the mode switch or the shift motor itself.

To diagnose this, I have attached the directions below which also include a description of how it works. However, it does require a scan tool to perform the tests.

Take a look through them and let me know if you are comfortable performing them.

Take care,

Joe

See pics below.
Sep 12, 2022 at 7:51 PM
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