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

Tiny
PAUL KANE
  • MEMBER
  • 2002 CHEVROLET S-10
  • 4.3L
  • V6
  • 4WD
  • MANUAL
  • 18,045 MILES
Transferase does not engage in 4-wheel low.
Monday, September 12th, 2022 AT 4:16 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
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.
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Monday, September 12th, 2022 AT 7:51 PM

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