Brakes are engaging while driving. brake pedal becomes very stiff and when let off gas car starts to slow dramatically
First find a new mechanic & expect a decent size repair billI will guess that the main cause is the ABS Braking SystemI won't try & diagnose it without the car,but that may explainthe application or failure of the brakes to release when at speedThat said, the heat & smoke and your mechanics hap hazardquess,may be lead to other issues,such as collapsed brake hose,rusted caliper piston, from never changing the brake fluid,now youhave the pads cooked from the heat, as well as the rotors.My concern is how things will be diagnosed & addressed as far as the fix goes.I will bet you will get many different stories, from different shopsI would check for ABS Codes & other Data & resolve that issue firstThen I would completely go through all 4 corners of the brakes.Flush the system,inspect hoses,most likely due to age & heat,replace the calipers & unlike most people, may machine the rotors, as i havenever found any fact based reason a rotor would warp from heat.I have to ask,why would you even drive one mile, the first timeyou experienced such a brake or vibration problem, like that?Then go 60 mph knowing full well you had serious problems& could be involved in crash & hurt yourself or someone else.Driving a 4000 lb vehicle, is a bigger responsiblity than anyonecares about.
