they do
power brakes are more powerful
Power brake booster is going bad. wont hold vacuum for power brakes to work.
Power brakes rely on vacuum or hydraulic pressure generated by the engine to assist with braking. If the engine fails, the power brake system will lose this assistance, making it harder to press the brake pedal. However, the brakes will still function as regular mechanical brakes, allowing the driver to stop the vehicle, albeit with increased effort.
You will still be able to steer the vehicle, but it's going to take lots of extra effort ... same is true of the brakes - more pressure is going to be required if you lose engine power.
The power steering pump also provides power for the power brakes.
Vacume problem or problem with booster/insufficient fluid, leak check those things.
I would check the power brake booster
Front brakes have significantly more stopping power than rear brakes.
If your power brake booster (the large roundish metal thing that the master cylinder is bolted to) either fails or loses its source for vacuum then your brake pedal will become very difficult to push like if you have manual brakes.
slowly push it along then pull the brakes, if it stops, THE BRAKES WORK!!! if it keeps going, THE BRAKES DON'T WORK!!! IT'S ROCKET SCIENCE!!!
Yes, the power brakes should work properly provided that the booster, check valve and hoses are in good condition and is getting the correct vacuum flow from the engine. The vacuum canister is a vacuum reservoir for the HVAC (Heating, Ventilation, Air Conditioning) controls.
no power brakes....harder to stop