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Anonymous users2024-02-08Because the load on the engine increases after the air conditioner is turned on, the vacuum degree of the throttle decreases, resulting in the reduction of the brake vacuum assistance, but it should not affect so much that the brake pedal cannot be pressed. There may be a problem with the brake vacuum system, and if such a problem occurs, it should be sent to the 4S shop for repair as soon as possible.
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Anonymous users2024-02-07"Poor brakes" is indeed related to the displacement of the car and the weather. "At present, the vast majority of cars use a component called a brake booster pump. It works by operating an engine that creates a vacuum inside the booster pump.
The air pressure generated by the vacuum will have a boosting effect when the driver applies the brakes. This is also why, when the engine is turned off, it feels particularly heavy to step on the brakes, precisely because of the loss of the help of the brake booster pump. ”
The engine plays a key role in the work of the brake booster pump. However, due to the small displacement model, the engine power is not sufficient. In addition, the weather is hot and the air conditioning is turned on the car, and when the owner repeatedly steps on the brakes (such as reversing into the garage), the engine cannot take care of the brake booster pump, resulting in the failure of the brake booster pump.
At this time, the brake is particularly heavy, and the average person feels as if the brake has failed.
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Anonymous users2024-02-06It is judged that it may be caused by aging and wear and slippage of the belt, and the specific situation is to go to the repair shop to check.
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Anonymous users2024-02-05When the car turns on the air conditioner, the brake is hard because the brake vacuum power is reduced due to the air conditioner being on, so the brake is hard.
When the air conditioner is turned on, the engine load increases and the throttle vacuum decreases, resulting in a decrease in brake vacuum power, but the impact should not be too great. If you can't press the brake pedal, there may be a problem with the brake vacuum system. If there is such a problem, it should be sent to the 4S shop for repair as soon as possible.
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Anonymous users2024-02-04Summary. If the brake is hard, it is normal to have something to do with the vacuum pipeline and the booster pump, firstly, check the brake vacuum tube to see if there is air leakage, secondly, its own suction to see if there is a problem, secondly, if there is a separate vacuum booster pump, test the suction of the tube by hand to see if it is normal, if there is no suction, it is a problem with the booster pump, and the third is a strong package, if there is a problem with the internal pressure relief, this situation will also occur.
If the brake is hard, it is normal to have something to do with the vacuum pipeline and the booster pump, firstly, check the brake vacuum tube to see if there is air leakage, secondly, its own suction to see if there is a problem, secondly, if there is a separate vacuum booster pump, test the suction of the tube by hand to see if it is normal, if there is no suction, it is the problem of the booster pump, the third big Luyin pure force package, if there is a problem with the internal pressure relief, then there will be this kind of emotional tolerance.
The vacuum pump master cylinder was replaced.
It is not possible to replace the pipeline, see if there is air leakage, and then check the one-way valve to see if there is a problem.
The check valves of the speed motor have been replaced.
It is not possible to change it, test the tube by hand to see if there is suction, and secondly, the vacuum pump must use the original car.
Very small. That's still a problem with the pipeline or vacuum source, and the vacuum pump can't be replaced, and the camshaft inside is not good to see if there is a problem.
Camshaft? If there is no separate vacuum pump at the tail of the camshaft, the camshaft does not need to be considered.
I didn't feel that the vacuum was not strong enough.
If the vacuum is hard enough, the vacuum booster pump problem must be used in the original car.
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Anonymous users2024-02-03The reason why the brakes are hard after the car turns on the air conditioner:
After turning on the air conditioner, the load on the engine increases, and the spaceness of the throttle valve is reduced, resulting in a decrease in brake vacuum assistance, but it should not be affected so much that the brake pedal cannot be pressed. There may be a problem with the brake vacuum system, and if such a problem occurs, it should be sent to the 4S shop for repair as soon as possible.
1. The engine has abnormal noise.
Symptom description: There is a lot of abnormal noise in the engine compartment, and most people also judge it to be the abnormal noise of the engine compartment by the sound**, which is usually a metal screeching sound or a howling sound. >>>More
It's not to control the speed, it's to control the speed, because Citroen is a high ** motive, so the speed does not exceed 2500 is no problem, the maximum speed is recommended not to exceed 100, and don't pull people!
Vehicles driven include small and micro automatic passenger vehicles for the disabled. >>>More
Good guys, the advertising has been done here, let's talk about the advertising first, the comfort of the C5 is indeed like what he said, it's very good, from a year before the financial crisis, just imported C5, I paid attention to it, it was too expensive at that time, I remember it seemed to be four or five hundred thousand, the configuration is quite good, and later after the introduction of domestic joint ventures, ** greatly shrunk, the configuration is also very low, the advertisement is not said, a new model of dynamic comfort, this is really true, it is indeed good, the sound insulation effect is also very good, some Lexus charm, The suspension tuning is also good, and the space is slightly better than that of Mindray, just slightly, the interior and appearance are very mature, stable, and atmospheric models, the advertisement said one less item, I went to see the car a while ago, and the sales said it personally, the whole system is equipped with anti-lock braking, brake assist, braking force distribution, and the body is stable, and the Mindray Treasure is low-profile, only the middle and high configuration has these configurations, and then talk about Mindray, the model is younger, and more fashionable, compared with the interior and C5, although it is not very fashionable and sporty, But it's still a little younger, there is no big difference in other configurations, as for the leather steering wheel, leather seats, reversing image, ***, navigation, those are floating clouds, in fact, the ownership of the two cars is not very good, the cost performance can only be said to be average, I am more optimistic about the Ford Mondeo at the same level of models, I have also seen this car, I think compared with these two, the winning cost performance is better, and the sales are also very good, compared to more value, power, space, comfort, are not to say, the most important thing is, Winning control is great, although the winning dual-clutch model ** is higher than these two, but the winning ** is lower, basically and these two ** at the same price, the power has increased a lot, whether it is or yes, the cost performance is good, especially prominent, and the new Regal is also a great model, sales are also good, Mindy and C5 these two cars are really good, but I still recommend that you consider other models. >>>More
First of all, check the cause of the loud sound and rule out the fault of the device itself; Then check the sound insulation between the cockpit and the engine compartment for damage; Finally, consider redoing the engine compartment soundproofing. However, this phenomenon of C5 is quite common, but I don't know how loud your voice is.