I have had this problem for quite a while. I have a 1994 4Runner V6 4WD. What happens is everytime that I let off the brake pedal I hear a squeal possibly coming from the rear wheels or from the brake pedal or from under the hood. The sound is almost like the sound of a rusty door hinge on an old door like in the horror movies, possibly sounding like a vacuum line letting out a slow amount of air from the master cylinder or something similar. It is loud enough that I can hear it outside and inside the vehicle. I am really desperate and need some brake experts to help me. I have seen only seen maybe 2 others post about this same exact problem and nobody answered or could help. It seems like a simple problem, I just need help on where else to look. I have changed the rear and front brakes and rotors/drums, and bled them. It could be possible I need to bleed them more, I am not sure.

Please Help if you can.

 

rusty/dirty slides on calipers? not familiar with 2nd gen though, and wouldnt make "air" sound though

 

Did you use anti-squeal when you replaced teh pads? It is a lube that goes between the pads, the spacers and the pistons. It is red or blue, I don't remember cause I havet done brakes in a while.

 

I sure did use the blue antisqueal stuff for the front brake pads. I am pretty certain it is not that but, thanks "trythis". As for a rusty or dirty slide, that I am not sure about and I will look into that and let ya know "wjwerdna".

thanks guys and I appreciate anyone else who can chime in and help.

 

Anybody?

 

well...

I found out what the problem was. I lubed all the moving parts within the rear drum itself and adjusted the rear drums and put them back together and so far I have not heard a peep. I hope this helps anyone else who has this annoyance.