Well, here is what I have done. I checked in the library and tried the bleeding as follows: rear left, rear right, front left and front right. I also became suspicious of my rebuilt calipers from Autozone (bought them in Palominas, AZ and drove with bad brakes to Phoenix). Thus, I picked another set at the junk yard and bled once more in the mentioned sequence. The bleeding was done with engine off. Before I would start the truck and the pedal would hit the floor no matter how many times I pumped. This time however, once I started the truck and pumped the pedal at least twice the pedal tended to hold. Since it was getting dark I left it at that. I will bleed once more but this time with the engine running. I usually do that the second time I bleed brakes. Also what I did this time was to fill the calipers with fresh fluid before assembling the front brakes. I think I will get them better with the engine running. I have never experienced this problem before. It seems very difficult to get the air out. I am also thinking about cracking the lines somewhere in between the master cylinder and the rear brakes. However, one thing I noticed is that the brakes deteriorated after bleeding the front. I still do not understand why. I thought since the lines are short and direct from the MC, there should not be any air in them. But it must have something to do with the fact that this MC design is both a MC and a load sensing valve at the same time. I remember checking this set up on a visit with some relatives but I did not pay much attention to it and since the parts were chinese (NISSA) I just shrugged off and blamed the MC and left. Now I have tried 3 MC and have spend almost 3 bottles of brake fluid in the last couple of days. I almost felt like switching to the other system. I will let you know the final outcome of this, I will nail it. Nothing gets by me. BTW I am also working on a LC and a 4runner with bad head gasket
Tuesday, January 18th, 2011 AT 5:18 AM
