Rear brake-loud rubbing noise

[Mark G.]

On my '90 240 SX hatchback, I have identified the source of a very loud rubbing noise as my left-rear brake. The noise only occurs when I am backing up and applying the brakes. I have had the rear rotor and brake pads replaced. They all look fine from what I can see, ie. adequate thickness to the pads and a nice surface on the rotor face. When I apply the emergency brake, which I rarely use, the noise occurs again but seems to go away for awhile. I'm stumped! I'd like to remove the caliper and pull the rotor off and have a look behind, but don't know how. I do not know how the emergency brake works on this model. Does it actuate the caliper, or is there another system? Any advice would be most welcome.

[DriftFactory]

Sounds like the caliper is siezing from time to time. I would pull everything off and try to bleed the brake line. If the Piston is harder than normal to push back it may be a sign of a bad caliper.

[navysnail]

remember to screw the rear piston in, and make sure the slide pins are greased up

[skatanic28]

assuming its similar to an s14, theres just 4 bolts to remove the caliper and rotor. the e-brake fitting can be a pain to take off if theres a lot of rust and corrosion. i had a similar problem and it ended up bein one of the floating pins seized up. itll be pretty obvious if thats your problem once you pull the caliper, good luck.

[240Knightrider]

what if it makes the noise in reverse without touching the brake?

[Mark G.]

Shouldn't be any rust or corrosion, as I live in the Desert Southwest. The noise occurs only when I apply the brakes going in reverse.Okay, I remove 4 bolts to pull off the caliper and the rear disk rotor. What are the floating pins? What do I do then?Does anyone have any pics or exploded diagrams?