ok so hope some one can send me in the right direction.. my brakes when i hold them down the motor drops to like 500 if i let up it creeps back up to 1000 so i disconected the booster and tried it and it still drops in rpms im stumped please help thanks....
ps i also cleaned the iacv didnt help..
i am also having problems with my back right brake sticking after i pull the ebrake do u think this might be related thanks..

 

as far as the rear brake problem. do you have drums? if so they could be rusted up or just all nasty. i really hate using the e-brake on old *** vehicles with rear drums that havent been changed out or cleaned up in the past 100 years... they will freeze up at one point.

 

no its converted to rear disc i think my cables arent tight enough left side is fine is the right rear gets stuck if i pump my brakes a bunch it will release some times or if i drive around it realeases its weird the idle is what is bugging me though...and yes ive bleed my brakes...

 

you could have a sticky caliper. jack up the rear. pull the tire then the caliper off and clean/lube it up.