vehicle brakes went out suddenly after hearing a loud POP sound...brakes wouldn't respond and pedal hard, ran off road and could only glide to a roll stop and not really then...fortunately a repair shop adjacent so drove their and rolled stop. initial look shop advised vacuum pump needs to be diagnosed...they came back with a 'caution on file #pip5598a which advised of known issue but no recall... they came back with a 479$ fee to diagnose exactly what's wrong (those pics enclosed) they are now staring they will not guarantee week or warranty and say engine must be replaced...they are still working up quote to repair vacuum pump, camshaft and timing chain but now are saying will be well over 2k to just SEE if will work and wont guarantee