Four-wheel drive not working?

William Harrison2 · 2022-11-08T13:34:15+00:00

I have the vehicle listed above ls. I have all indicator lights on the 4wd switch. 2hi lights up all the time, but when I switch to 4 hi the 4hi light comes on 2 hi goes out and I hear clicking in passenger side kick panel from the TCCM. the 4hi light flashes and switches back to 2 hi solid, same goes with 4 low. I put brand new TCCM. Put in New Differential Vacuum Actuator and put in new Transfer Case Switch and now i have new transfer case motor coming. I hear nothing coming from transfer case motor when switching, why do I have a new one coming. I hear just clicking from TCCM, got good vacuum. checked all fuses, good. I'm about to pull my hair out if I had any. I do all work on my vehicles always have since 14 years old so I know more things then most but, I'm lost on this one. any info would be greatly appreciated.

2001 CHEVROLET BLAZER

230,000 MILES • 4.3L • V6 • 4WD • AUTOMATIC

WILLIAM HARRISON2

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26 POSTS

You too and it wasn't no problem, you did good you have a good night also. if I have any more problems I'll message you for sure.

Nov 13, 2022 at 7:05 AM

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