My Disco was running great, then the entire brake system practically self destructed and I broke my 1 key off in the ignition. I replaced the pasenger rear calliper, master cylinder, front drivers brake line, and had to get a new key cut from the broken key. long story short I'm idling at 1900 acording to my tac, this in combination with the fact that my fan clutch is seized causes extremely loud idling. When put into a gear the motor is turning too many rpms causing it to clunk into gear and in low range idling in drive is almost so powerful it over powers the brakes with just auto roll. I dont want to break any thing else and its driving me nuts. Any solutions?