Harvard H2 exhaust pipe abnormal noise, Haval H2 chassis abnormal noise, what to do

It is recommended to check whether there is any damage in the lower exhaust pipe, which causes the exhaust gas to be discharged from the damaged part, so there is an abnormal sound in the exhaust pipe.

You can go to a local large repair shop or 4S shop, which should be able to solve the problem. In order to ensure quality and after-sales problems, be sure to find a regular shop for maintenance

This may be the sound of water vapor in the exhaust, and it is recommended to punch a hole at the lowest part of the tail section of the muffler to drain the water.

It is normal for the exhaust pipe to run water, and the sound of the exhaust pipe is to see if there is a place to touch the driver, and to confirm whether there is a sound in the exhaust pipe.

There is water in the exhaust pipe, just drain the water inside.

It is possible that the screws of the bracket to fix the exhaust pipe are off or the bracket is rotten, and it is also possible that the exhaust pipe is rotten and there is a hole.

The exhaust pipe should be three sections, see which section is wrong, or it may be the outermost section of the muffler that is faulty.

It is recommended that the 4S shop go to the inspection or the big repair shop to check the specific fault.

Hello, it is recommended that you go to the 4s shop to check or the big repair shop to check it, thank you, hope!

1. Abnormal noise inside and outside the body.

After driving for a long time, the body will always make abnormal noises, and it is not easy to notice, so it may be from these places. For example, the side door of the car will produce abnormal impact or collision in different road sections; Because the sealing of the car window is not good enough, it will produce large wind noise; Car seats also cause a "creaking" noise when driving on uneven surfaces due to gaps in the fixtures. There are also some abnormal noises such as glove boxes, side trim panels, seat belt locks, sunroofs, etc., most of these problems can be removed by installing foot mats or sponges at the place where the abnormal noise occurs, and if it is serious, it needs to be checked and dealt with in the store.

2. Abnormal noise of the brake system.

The abnormal noise of the brake system generally includes, because the brake pads exceed the use limit and continue to be used, there will be a "squeak" scraping sound when the brake is pressed; If there are deep scratches on the surface of the brake disc, it will also make noise. The life of brake pads is generally 5-80,000km, but this is not absolute, but depends on the owner's personal driving habits. (Some of them will also cause noise due to the material of the brake pads).

3. Abnormal tire noise.

When running at high speeds, there is a "buzzing" noise from the tires, and the faster the speed, the louder the noise, indicating that there is a problem with your wheel bushing and needs to be replaced in time. When the tire is severely worn, the tire noise can also be noticeable if it is not replaced in time.

Fourth, the suspension of abnormal noise.

If there is a "knock" and "click" sound when driving on a bumpy road, it may be that there is a problem with your damping system, and you need to go to the maintenance point to check it in time, because it will endanger the driving safety; When playing the direction, the left and right wheels make noise, and it is found that it is not all full, but there is an abnormal sound when it is halfway through, it may be a problem with the steering machine; The noise caused by the killing may be a problem with the ball head in the steering machine.

5. Cabin noise.

There are a lot of abnormal noises in the cabin, and they are complicated and cannot be judged directly, so you need to go to a professional maintenance point to do a careful inventory. If there is a metal friction noise coming from the cabin after the car is landed, it may be a problem with the generator or compressor; If it is the noise of the belt, it is caused by the belt slipping.

It is recommended that no matter how big or small the problem is, it should be repaired in time.

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Loose chassis generally occurs in older cars, when the car is driving in bad road conditions, the steering wheel will feel unstable, the bottom of the car will also come out of the abnormal sound, usually the old driver can feel the overall a little loose, when encountering such a situation, it means that the chassis may be loose, and the reasons for this situation are divided into several, only by understanding the reasons, can we better prevent this problem from happening.

The first reason is the aging of rubber parts, we all know that the elasticity of rubber is particularly good, which can buffer the friction between parts and reduce noise at the same time. However, this kind of thing has a lifespan, and it will age after a long time, and the elasticity is not as good as before, so the buffering capacity will decrease, resulting in abnormal noise in each part, so it is necessary to check these rubber parts regularly and replace them in time.

The second possibility is the reason for the shock absorber, the main role of this part is to inhibit **, when the car is driving in the dustpan section, it will have an impact with the road surface, and the shock absorber can well ensure the smoothness of the car, if the shock absorber is damaged, there will be a scoop phenomenon, so that the chassis is loose, so usually check the shock absorber, if there is a leakage to repair in time.

The third is the clearance of the parts, that is to say, the ball head may be loose, this part is like the joint of the human body, if the ball head is loose, there will be a large gap between the lever and other connected parts, if the gap is too large, when crossing some dustpan roads, the screws between the subframe and the suspension will be loose, then the chassis will become loose, so usually check these two parts.

Thank you for adopting.

Check the lower arm ball joint, tie rod ball joint, hub bearing, shock absorber.

It is necessary to inspect the site, hanging, etc.

Exhaust pipe leaks can be repaired by trying:

1. Aluminum foil, wrap the air leakage with aluminum foil. This method is easy to operate, but it is not long-lasting. It is suitable for temporary exhaust gas detection.

2. Welding, this method is suitable for repairing the air leakage at the connection of the exhaust pipe, such as the interface between the pipe and the muffler. Because the exhaust pipe wall is very thin, the high temperature during electric welding can easily burn the exhaust pipe through. The interface is often thick enough to withstand the high temperatures of welding.

3. Clip iron sheet, this method is also very simple, find a can, cut off a patch larger than the loophole, wrap the air leakage, and then fix it on the exhaust pipe with a clip.

4. Grafting, which is a method that tests the technology, is very difficult. Cut off the badly damaged part of the exhaust pipe directly, and then find a metal pipe of the same thickness to weld it. This method works best and is durable. The disadvantage is that it is too complex and difficult to operate.

Hello, can you describe the problem in more detail?

Summary. Hello, in your case, the first thing we need to do is determine if the abnormal noise of the engine is caused by an anomaly inside the intake manifold? Because if the engine is said to have excessive wear and tear inside the engine, it will also lead to transmission, but the inside of the intake manifold will also have an impact, it is this kind of intake manifold with flap control, with the extension of time, it is easy to age and brittle, and even when the track is off and the air intake volume is generated, the abnormal sound caused by the intake push flap is also more serious, like this situation will increase the air intake volume is not smooth, resulting in higher fuel consumption of the mixture, and even the fault code will be reported.

So like this case, first of all, we need to remove the intake manifold, check whether the internal flap is loose and there are anomalies caused by foreign objects, and see if it can be repaired and handled.

Intake manifold squeak.

Hello, in your case, the first thing we need to do is determine if the abnormal noise of the engine is caused by an anomaly inside the intake manifold? Because if the engine is said to be overwhelmed by the internal wear of the engine, it will also lead to transmission, but the state is the inside of the intake manifold will also have an impact on the book, it is this kind of intake manifold with flap control, with the extension of time, easy to age and brittle, and even in the time of falling off the track and generating in the air intake, the abnormal sound caused by the intake pushing flap is also more serious, like this situation will increase the air intake volume is not smooth, resulting in higher fuel consumption of the mixture, and even the fault code will be reported. So like this case, first of all, we need to remove the intake manifold, check whether the internal flap is loose and there are anomalies caused by foreign objects, and see if it can be repaired and handled.

How to solve the abnormal noise of Haval H2 sunroof.

Under normal circumstances, there are three situations that cause abnormal noise of Haval H2 sunroof: first, the lubrication of the automobile sunroof slide rail is insufficient; the second is the dust accumulation on the skylight track; Third, the sunroof screws are loose. When the sunroof is opened, only the slides of the sunroof move.

If there is a sound, it may be that some parts are not well lubricated. Try applying some grease. It is also possible that the sunroof has been open for a long time and has accumulated a lot of dust on the slides.

After wiping, the sound should be made to disappear; It may also be that the sunroof has been used for a long time, some parts or screws are loose, and the sound should disappear after tightening the screws. Proper use of car sunroofs:1.

When opening the sunroof, pay attention to the roof for obstacles that prevent the sunroof from rising or sliding backwards, otherwise it will burn the motor or overload and cause the sunroof glass surface to be accidentally scratched. 2.When opening a sunroof, be sure to open and close the sunroof correctly.

If the switch is not done properly, the internal current of the sunroof motor will be too high and the motor will burn out. 3.When driving on extremely bumpy roads, it is best not to open the sunroof, as this may cause excessive vibration between the sunroof and the slide rails, which can cause deformation of the relevant parts and damage the sunroof when the sunroof is opened.

4.When washing the car, do not use a high-pressure water gun to aim the water column directly at the sunroof seal, otherwise the deformation of the sealing strip will cause the sunroof to leak. 5.

Do not open the sunroof immediately after frost or snow in the morning or after washing the car in winter, as this is likely to damage the motor or seal, because the sunroof is likely to freeze at this time, you can turn on the car heater first and wait a while before opening the sunroof. When the weather is good, the owner can wipe the sunroof slide with a damp soft cotton cloth and apply a little butter to the slide after drying. For rubber and plastic parts, after wiping dry, the surface can be protected by a little talcum powder.

Also, check the sunroof frequently. If there are loose screws, it is best to tighten them in time to prevent abnormal noise.

Small holes in the exhaust pipe are used to drain water. When gasoline is fully burned and utilization is high, the displacement increases. Conversely, when gasoline is not completely burned, the displacement decreases.

The exhaust pipe is a part of the engine's exhaust system, which mainly includes the exhaust manifold, exhaust pipe, and muffler. A three-stage catalytic converter is also installed in the exhaust system, which is generally used to control the emission of pollutants from the engine, and the exhaust pipe generally includes the front exhaust pipe and the rear exhaust pipe.

The sound of the back pressure exhaust pipe will be better than the original. Most of the original cars use this kind of pipe to generate a kind of pressure, which is mainly through the change of the volume of the internal pipe of the grille silencer or pipe trace to return the pressure to the cylinder. When the engine is ignited, the piston will begin its power stroke, and the exhaust valve will open before the piston reaches the bottom dead center.

At this time, the back pressure in the pipe will prevent the exhaust gas from rushing out, so that the mixture can be completely combusted. However, if the back pressure is too strong, the waste gas will not be completely discharged from the cylinder, which will cause the exhaust gas to burn together with the mixed gas, reducing the combustion efficiency. Of course, the most direct way is to output horsepower.

Advantages: low noise, good torque at low speed. Cons:

The exhaust gas can not be discharged quickly at high speed, which affects the power output of the engine, and the volume is small.

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Summary. Hello, I am your exclusive technician, attentive, careful, dedicated to answering your car questions, for you to find the corresponding problem solutions and solutions! Harvard H2 valve springs are not divided into intake and exhaust. It can be messed up.

When the piston reaches the top dead center, the exhaust ends; This valve spring is compressed to the specified position; When the piston reaches the bottom dead center, the intake air reaches the saturation level, and the ignition and combustion are at the best time; The intake and exhaust valves are closed at this point. As the piston goes up, the exhaust valve gradually opens. The springs are gradually shortened.

Does the Harvard H2 valve spring split into the exhaust.

Hello, I am helping you sort out the answers to your questions, please wait a while Hello, I am your exclusive technician, attentive, careful, and dedicated to answering your car questions, and finding solutions and solutions to the corresponding problems for you! Harvard H2 valve springs do not leak separate intake and exhaust. It can be chaotic to imitate the family outfit.

When the piston reaches the top dead center, the exhaust ends; This valve spring is compressed to the specified position; When the piston reaches the bottom dead center, the intake air reaches the saturation level, and the ignition and combustion are at the best time; The intake and exhaust valves are closed at this point. As the piston goes up, the exhaust valve gradually opens. The springs are gradually shortened.

Okay thank you.