hi dont know how to post this questions i have 95 4d 4wal 4x4 blazer anyone know why it locks brakes up when you put in 4wd

 

*Moved to its own thread in '2nd Gen Tech' *

 

Are you sure that the brakes are locking when in 4wd? Have you verified that the gear ratios are the same in the front and rear axles?

 

yes before abs light came on never had this issue i one time pulled fuse 18 and it relesed brakes

 

Get the ABS codes read and see what that gets you. Post up the code and we'll go from there.

 

ur right cant be abs. I hooked all the wires up but bypassed the brakelines going in the bmpv box hooked them directly together. Lights all switch like they should into 4wd but it acts like its binding encoder motor makes a little noise is it possible it is not engaging transfer case in fully that it is too weak. Im gonna run staright vacuum from pcv into accuator after i connect it into 4wd maybe accuator isnt pulling enough was working fine before the diaphram in accuator tore