What causes an automatic car to stall when braking?

What causes an automatic car to stall when braking?

In the transmission of an automatic car, there is a torque converter, which takes the place of a mechanical clutch. The torque converter is supposed to unlock both during cruising and deceleration. Sometimes, however, braking occurs before the torque converter has a chance to do this. The result is power loss and the stalling of the engine.

What makes a car stall on a hill?

You must set the gas to at least between 2000 – 3000 revs in order to give the car the power to get up the hill. Your car may also stall on a hill start if the clutch comes up to fast (i.e. past the bite point) therefore not allowing the clutch plate and the fly wheel to engage smoothly. Now let’s look at why cars roll back on hill starts.

What causes a car to stall at a stop sign?

In vehicles with automatic transmissions that sometimes have a problem with stalling at lights or stop signs, most of the time it is a difference in pressure on each side of the pressure plate. A loss of pressure on one side or another will cause a stall.

Why does my car roll back on a hill start?

Your car may also stall on a hill start if the clutch comes up to fast (i.e. past the bite point) therefore not allowing the clutch plate and the fly wheel to engage smoothly. Now let’s look at why cars roll back on hill starts.

Why does a car stall when you brake?

Stalling can also happen if there is a brake line obstruction, either by a chunk of rust or a pinched brake line. Air in the brake fluid from a hole in the system can prevent proper pressure to the brakes. The car may also stall due to a vacuum leak in the anti-lock brakes system.

What causes cars to stall when applying brakes?

Why Does a Car Stall When You Brake? Overview Brake System. The brake system is composed of the disk brakes in the front end and/or rear of the vehicle that connects to a system of tubes and hoses. Stalling. One way the car stalls is if there is a leak in the brake booster, either by a blockage of the vacuum hose or a cracked, ruptured or leaking Inspection.

What is wrong with my car when it stalls?

What Causes a Car to Stall? The fuel system. Whether it is a fuel quality issue or a fuel supply or fuel injector issue, the fuel system can be the cause of your car stalling. Incorrect timing. Closely related to the fuel system is engine timing. Improper air supply. Air is as important to an engine as fuel. Electrical problems. Transmission problems.

What makes a car stall while driving?

There are many reasons a car engine may stall in the middle of driving, but nearly all of them can be traced back to the lack of one of three things: lack of air, a fuel shortage, or trouble making a spark. If any of those critical players leave the internal-combustion game,…