In detail: do-it-yourself Renault Duster repair - knock when starting off from a real master for the site my.housecope.com.
Knocking when starting off can be caused by several problems. First of all, the most terrible and sinister things come to mind of a motorist. But, as practice shows, everything may not be as bad as it seems at first glance.
Depending on the nature of the knock, there you need to look for the problem. But, consider the main places where a malfunction may occur:
The hose is "stuck" to the thrust bearing
In order for everything to become clear, it is necessary to dwell on each point separately.
Given the state of the roads in some cities, demand a thorough diagnostics of the chassis for TO-1
First of all, it is worth paying attention, the sound appears when you first turn the wheels or start the power unit. If in the first case, then the problem is exactly in the chassis and it is necessary to make a diagnosis.
The reasons for the appearance of characteristic sounds can be a breakdown of the joints of the CV joint, failure of the steering rod or wear of the steering rack, ball wear is on the way and the shock absorber strut knocks. To determine the malfunction, it is recommended to drive into a pit or lift, and carry out a full diagnosis. As a last resort, twitch everything and determine where the sound is coming from.
When a problem is found, it is necessary to eliminate it as soon as possible, because if a breakdown occurs on the way, it will be almost impossible to repair it on your own. Then just a tow truck. Running gear and suspension diagnostics must be done at every MOT, and savings, as a rule, will not lead to anything good.
There are repeated cases when the bolts on the exhaust pipe burn out or are simply torn off (there can be many reasons for this phenomenon), and it rubs against the gearbox or other elements.
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This can cause the characteristic knock when starting off. Of course, this is not the only place where problems with fastening may arise, so it is worth dropping into the pit and conducting diagnostics.
Check the tightness of the engine protection to the side members!
There may also be a problem in the gearbox that causes the characteristic knock. Basically, there are two reasons for the malfunction:
All these reasons will entail the disassembly of the unit to fix the problem.
Under the hood of a diesel Duster 109 horsepower
Engine breakdown is a scary word for any motorist.
First, you should look for the reasons in the alternator belt and pump that could cause a knock. First of all, these are the bearings of the parts. They could crumble, which actually caused the knock.
For more information on bearing diagnostics:
The second, more terrible option is knocking inside the power unit. The reasons for this phenomenon could be the following malfunctions:
- Deformation of one or more valves.
- Carbon deposits in the combustion chambers.
- Development of the camshaft.
Of course, no one talks about the crankshaft, because if it knocks, then the motorist will understand it right away.
Incorrect timing belt tension can cause a metallic knock in the engine area. To eliminate the problem, it is necessary to disassemble the timing mechanism and check the belt tension and the condition of the roller.
If the driver forgot to turn off the air conditioner and the car stood for a long time, then a characteristic short knock will appear when starting off. This indicates a short-term operation of the changeover valve. This is due to the fact that the condenser is not yet ready for operation, and the compressor has begun to drive the frion through the system. The treatment is quite simple - turn off the air conditioner and turn it on when the engine warms up.
There are many reasons why a knock may appear when starting off in Renault Duster.If such a situation arises, it is necessary to immediately carry out diagnostics so as not to make even more troubles that will hit the owner's pocket.
The roads in our country do not differ in quality, they are not always even and smooth. Very often there are various bumps and bumps on the asphalt. All this would certainly affect the comfort of movement if a special shock-absorbing system, the car's suspension, had not been invented.Renault Duster suspension is necessary in order to dampen vibrations that occur when driving on uneven roads. In addition, the suspension connects the body and wheels. It is with its help that the wheels can move freely independently of the body, helping to change the movement of the car.
- Elastic elements. These include metal springs, springs and torsion bars, as well as non-metallic ones, which include rubber parts that take on the load from road irregularities.
- Extinguishing devices. These are shock absorbers. They can be either hydraulic or pneumatic.
- Guide elements - a set of longitudinal and transverse levers, limiting the longitudinal or lateral movement of the suspension.
- Supports - steering knuckles or other structures
- Anti-roll bars
- Mountings
Renault Duster front suspension of independent type, MacPherson format. The main suspension components are gas shock absorbers. They are better than oil ones due to a softer stroke and an increased resource. Two triangular levers are connected to the subframe, which are combined with a steering knuckle by means of a ball joint. The stand is located in the inner part of the mudguard, reinforced with a spring.
The rear suspension of Renault Duster 4x4 differs from the front-wheel drive model, which is made in the form of a semi-independent frame. The diagram shows the components of the system:
Renault Duster 4x4 suspension is completely independent, both front and rear. This improves the vehicle's behavior at high speed, but reduces the ability to operate off-road.
- Rear wheel bearing
Renault Duster front-wheel drive is distinguished by the fact that the rear wheel bearing is pressed into the brake drum. This not only made it possible to simplify the design a little, but also to make the replacement more convenient. In order to change a part, it is enough to remove the brake drum.
- Anti-roll bar
The resource of the racks directly depends on the style of use of the car. If problems arise with this part, a knock on the front suspension may occur to Renault Duster. This occurs when the anthers are mechanically damaged. After that, the hinges wear out quickly, under the influence of dirt and sand. It is necessary to periodically check this element, and before installation it is recommended to additionally lubricate with lithol or other thick grease.
- Roll bar
Usually, this part is quite durable and does not break during the entire service life of the car. But the cushions that hold it in place over time can dry out, causing noise and thumping from the suspension, which necessitates replacement.
- Strut
This detail not only dampens vibrations while driving, but is also responsible for stability when cornering and maneuvering.
- Lever and ball joint Duster
The need to replace the lever arises when the car is damaged during an accident. The factory set of the lever and ball are connected with rivets. You can change the entire set as a whole, or you can purchase a ball joint separately. In this case, the rivets are drilled out and replaced with special bolts from the repair kit.
- Steering knuckle, hub bearing.
- The steering knuckle must be replaced in case of serious damage, as well as in the case of replacing the hub bearing. A defective bearing will make a spinning noise and will increase with the rotation speed.
- Rear suspension shock absorber
- If the shock absorbers are damaged, the vehicle will wobble unnecessarily when passing bumps. Deterioration in handling is also possible.If it is necessary to replace the rear shock absorbers, then it should be done one at a time. This is due to the fact that they hold the rear beam, and if they are simultaneously disconnected from a suspended vehicle, the beam can sag and damage the brake hoses.
- Renault Duster spring (relevant for front-wheel drive cars.)
- As a rule, replacement is necessary on high-mileage vehicles that were used to transport goods. In this case, the springs can sag significantly, which will reduce the vehicle's clearance. The suspension becomes more rigid, even the smallest irregularities are noticeable.
In a Renault Duster car, a knock in the front suspension signals that one of the parts is out of order and urgently needs to be replaced. It is necessary to make an independent inspection of the parts. But in some cases, a viewing hole or lift may be needed.
One of the most common causes of extraneous sounds is a damaged support leg.
Over time, and under the influence of stress, it collapses., Losing its shape. Inspection can be started from the engine compartment. The struts are located under the spring cups. You need to see the gap and their condition.
If the gap is more than 10 millimeters, or differs from the opposite, then replacement is necessary, because they have sagged and do not damp shocks.
Can be distinguished by a dull sound. This is the most common symptom of a defective part. To check it is necessary to rock the car. If everything is in order with them, then it will smoothly return to its original position.
If in doubt, a visual inspection can be carried out. Deformation of the part or the presence of smudges indicates the need for replacement.
The sound occurs when the vehicle is swinging laterally. The stance jumps in the seat and emits a characteristic sound. Increases when driving on rough roads. The most common problem occurs when the stabilizer bushings are damaged.
You can verify the malfunction of the silent blocks using a mount. It fits between the sub-frame and moves laterally. This determines the presence of a backlash. In order to determine the degree of wear of this component, it is necessary to completely dismantle the part.
This part is not famous for its reliability. And when operating a car off-road, there is a great risk of its premature failure.
To diagnose the rail, you need to drive the car onto a lift or a viewing hole. Then, by rocking, the amount of backlash is determined.
The main component of this part is rubber grommets. You can determine the state of a part by its external state. If there are problems, tears will be visible on visual inspection.
It must be remembered that untimely replacement of one of the components increases the load on the rest. Therefore, timely repairs can not only save nerves but also a significant amount of money.