After you put away the 9mm and take out the Uzi you should drive it like you stole it, 'n not worry too much about the brakes 'til there's no more headlights in your rearview :)
NO!!!!!
More than likely an airlock in the cooling system, bleed the system and should be fixed.
If you have not opened the brake system ie. taken off any lines or lost any fluid, you should not have to bleed a brake system. Brake jobs are best done by experienced technicians.
If you manged to replace the rotors w/o unhooking the calipers - no.
If you're only changing the pads, no. You only need to bleed if the hydraulic system was opened or if you wish to flush/change the brake fluid.
Should bleed all vehicles after the system has work done to it to get rid of air pockets
there should be a air valve on the engine that you can bleed the bubbles out of the cooling system.
Doesn't have any. The system should self bleed.
I would guess to bleed out the air in the system when you fill it after loosing fluid or after changing or flushing the system.
If there is not bleed valve for the coolant you will have to do it manually. Fill the radiator up and start the car. After it warms up the coolant level will drop, refill it.
You need to bleed the entire brake system. Bleed in this sequence, RR, LR, RF, LF. If you do not know how to do this, do a search online for "bleeding brakes" THE REAR WHEEL CYLINDERS MAY BE LEAKING SHOULD ALWAYS CHANGE WHEN DOING BRAKES AND BLEED REAR BRAKES
Did you bleed the air out of the hydraulic system after changing the wheel cylinder? If not, you must do so.