How do you add fluid to the transfer case?


Asked by Pearl Mar 27, 2007 at 08:11 PM about the 2000 Chevrolet Blazer 4 Dr LT 4WD SUV

Question type: Maintenance & Repair

The service 4wdr light is on, and it won't go into 4hi.

2 Answers


The transfer case has 2 plugs, an upper and a lower. The upper is the "fill" and the lower is to drain. If you are going to go there, just drain and refill with all new fluid. The plugs usually take a 3/8" or a 1/2" ratchet to open. You will see the female square holes

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Thanks for the reply. I think it has solved my problem.

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