Check if the vacuum brake pump is connected properly or is even working
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1. Park the car.
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Park the car and turn off the engine.
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Pump the brake pedal five or six times
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Start the engine, and keep your foot pushing down on the pedal. Check what happens to the pedal.
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2. Turn off the engine.
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3. Pump the brake pedal five to six times
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4. Start the engine, and keep your foot pushing down on the pedal. Note what happens to the pedal.
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With the engine running, the engine sucks the air out of the brake booster, restoring the vacuum. Ideally, the pedal should fall towards the floor with you applying light and steady pressure. If the pedal pushes back against your foot, then there is a problem. This could be a blocked vacuum hose, a leak in the vacuum hose, or a leak in the brake booster check valve.
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With the engine running, the engine sucks the air out of the brake booster, restoring the vacuum. Normally, the pedal will drop towards the floor with your foot applying light and steady pressure on it.
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If the pedal pushes back against your foot, then there is a problem. This could be a blocked vacuum hose, a leak in the vacuum hose, or a leak in the brake booster check valve.
Given that it happens after the engine has been idle for some time, inspect the check valve for leaks.
Check if the vacuum brake pump is connected properly or is even working
1. Park the car.
2. Turn off the engine.
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3. Pump the brakes five to six times
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3. Pump the brake pedal five to six times
4. Start the engine, and keep your foot pushing down on the pedal. Note what happens to the pedal.
With the engine running, the engine sucks the air out of the brake booster, restoring the vacuum. Ideally, the pedal should fall towards the floor with you applying light and steady pressure. If the pedal pushes back against your foot, then there is a problem. This could be a blocked vacuum hose, a leak in the vacuum hose, or a leak in the brake booster check valve.
Given that it happens after the engine has been idle for some time, inspect the check valve for leaks.
Check if the vacuum brake pump is connected or even working
+
Check if the vacuum brake pump is connected properly or is even working
1. Park the car.
2. Turn off the engine.
3. Pump the brakes five to six times
4. Start the engine, and keep your foot pushing down on the pedal. Note what happens to the pedal.
With the engine running, the engine sucks the air out of the brake booster, restoring the vacuum. Ideally, the pedal should fall towards the floor with you applying light and steady pressure. If the pedal pushes back against your foot, then there is a problem. This could be a blocked vacuum hose, a leak in the vacuum hose, or a leak in the brake booster check valve.
Given that it happens after the engine has been idle for some time, inspect the check valve for leaks.
Check if the vacuum brake pump is connected or even working
1. Park the car.
2. Turn off the engine.
3. Pump the brakes five to six times
4. Start the engine, and keep your foot pushing down on the pedal. Note what happens to the pedal.
With the engine running, the engine sucks the air out of the brake booster, restoring the vacuum. Ideally, the pedal should fall towards the floor with you applying light and steady pressure. If the pedal pushes back against your foot, then there is a problem. This could be a blocked vacuum hose, a leak in the vacuum hose, or a leak in the brake booster check valve.
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Given that it happens after being idle, inspect the check valve for leaks.
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+
Given that it happens after the engine has been idle for some time, inspect the check valve for leaks.
Check if the vacuum brake pump is connected or even working
1. Park the car.
2. Turn off the engine.
3. Pump the brakes five to six times
4. Start the engine, and keep your foot pushing down on the pedal. Note what happens to the pedal.
With the engine running, the engine sucks the air out of the brake booster, restoring the vacuum. Ideally, the pedal should fall towards the floor with you applying light and steady pressure. If the pedal pushes back against your foot, then there is a problem. This could be a blocked vacuum hose, a leak in the vacuum hose, or a leak in the brake booster check valve.
+
Given that it happens after being idle, inspect the check valve for leaks.
Hi,
Check if the vacuum brake pump is connected or even working
1. Park the car.
2. Turn off the engine.
3. Pump the brakes five to six times
4. Start the engine, and keep your foot pushing down on the pedal. Note what happens to the pedal.
With the engine running, the engine sucks the air out of the brake booster, restoring the vacuum. Ideally, the pedal should fall towards the floor with you applying light and steady pressure. If the pedal pushes back against your foot, then there is a problem. This could be a blocked vacuum hose, a leak in the vacuum hose, or a leak in the brake booster check valve.