if it only does it when you apply the brakes hard it could be the anti-lock brake system depending on the year some have a pump and its noise is what is described. The other possability is front disk brake pads are worn off and and gringing away the rotor.
This sounds like vacuum leak in the braking system. Check for disconnected or cracked hose from the engine to the brake booster in the engine compartment.
Is your brake pedal hard ? If so replace the power brake booster. It sounds like you have a major vaccume leak in the booster when you apply the brakes. Power brakes work off of engine vaccume. If the dieafram is leaking vaccume when you apply the brakes it leans the engine out. ( creates a major vaccume leak ) and engine dies. Hope this helps.
One possiblity could be the power brake booster is shot. When you apply the brakes it creates a large vacuum leak, enough to stall engine.
apply your brakes gently while accelerating at the same time
Continue to apply brakes: they're not just power brakes, they also function manually.
Check for vacuum leak
That would be the power brake vacuum operated booster.
Time for new brakes or adjustment.
it broke
apply your brakes gently as you accelerate
apply your brakes gently as you accelerate
What is stab braking?Apply your brakes all the way.Release brakes when wheels lock up.As soon as the wheels start rolling, apply the brakes fully again. (It can take up to one secondfor the wheels to start rolling after you release the brakes. If you re-apply the brakes before thewheels start rolling, the vehicle won't straighten out.)This is directly from the NYS CDL Manual.