I recently added gear lube I my differential and changed my fuel filter, and had to jack up the rear and applied the e-brake. A few days earlier I installed a new header gasket, while I was installing it I found myself accidentally posting of the master cylinder.

Today I put in reverse back up, then in drive but, it feels like something is holding my car back. I give it some gas and it the feeling subsides sorta. When accelerating from a stop, I can hear my rear right (passenger) brake whining like it were depressed. The sound you can hear when you apply gas and brake at the same time.

The sound is definitely coming from the rear right drum, but not the left. Do you think I pinched the rear right brake line or did I pinch the e-brake cable. If I pinched a brake line would it stay depressed all the time? Or did I screw something up on the master cylinder? I did drive it after I replaced the gasket and I never noticed, but after I got done the lube and filter change I noticed it. So I'm almost 100% sure that the problem is due to the jacking of the rear and nothing to do with the master cylinder, but I thought I should inform you of all the possible causes.

 

Anybody?

Here's an update, I checked the back brake lines and the driver's side not the passenger's side was pinched? Would this cause the passenger side to feel locked?

 

If your drivers side is pinched, it would restrict pressure to the drivers side, making the passenger side feel like it is locking up.

 

You doubled the pressure to the passenger side, locking it up and possibly damaging the wheel cylinder.

 

I changed the line and bleed the back brakes but now my parking brake light stays on?

 

make sure the master cylinder is full. If it is low the brake light will come on

 

More likely you have air in the line or a loose fitting, which sets off the pressure differential switch in the prop valve and turns on the dashboard "brake" light. Check you rear lines and rebleed the system.

 

The spool in that prop valve must be centered in the middle during normal operation (when you have equal line pressure to front and back).If you lose pressure to one side, the high pressure side pushes it to the far end of travel turning on the brake light. It is a major pain to recenter the spool due to sludge or corrosion sticking it in the bore. Usually it won't come back on its own and needs to be removed and knock it against a block of wood several times on each side to free it up.