Toyota car chassis diagnostics and repair.

Toyota Corolla chassis problems and repairs

The whole chassis is a guarantee of comfort inside the car, as well as a high level of safety. Every motorist knows that periodically it is necessary to inspect the chassis, to replace worn rubber bands and parts. It depends on it how the car holds the road, goes along the bumpy road, leveling the body and taking on all the "joys" of our roads. The chassis of the Toyota Corolla Fielder, having traveled more than a dozen kilometers, like any other car, tends to start knocking. Here, as a rule, we are talking more about rubber suspension elements, since they are subject to greater wear and tear and have their own specific service life during the operation of the vehicle.

A little about the chassis of the Toyota Corolla

The chassis of the Toyota Corolla Fielder for our roads comes with an increased ground clearance... The manufacturer focuses on road conditions our country and makes cars as convenient as possible for operation.

Toyota's undercarriage is slightly stiff, but it has impressive ergonomics. For a general summary, it is worth noting that stabilizers often take care of 70-90 thousand kilometers without a single error. The process of replacing them is not difficult, but it requires certain skills and knowledge. The manufacturer has provided for the simplicity of the design. Even the most outsider from cars will understand this. Ball joints Undercarriage Corolla capable of nursing more than 150 thousand kilometers.

With the systematic maintenance of the car, chassis able to live for a very long time and in no way, not to remind of its existence.

It is also worth noting that silent blocks and stabilizer bushings very often fail in the undercarriage. According to the manual, their replacement is required every 70-90 thousand kilometers. Many motorists who like to drive high speeds, after 140-150 km per hour, it seems that their suspension is defective, however, for such cars, knocking noises at this speed are quite normal. Of course, if they are not strong.

Some problems and how to solve them on Toyota Fielder

Sometimes it happens that silent blocks begin to knock. The problem is completely solvable, but it requires the intervention of a specialist or an ordinary person who can replace them according to the instructions. Let's talk about replacing the rear bushing of the lower arm of the front suspension on a Toyota Corolla.

The first step is to raise the car and put it on supports, remove the wheel from the side where you hear a knock or where you can see that the silent block is worn out. Next, remove two nuts and one bolt securing the lower ball joint arm. We need a knob and a head for 17.

Then we need to unscrew the long bolt of the front silentblock - this can be done with a 19 head. Then two bolts and one nut are slightly loosened at the attachment points of the rear silentblock and the transverse thrust of the chassis of the vehicle. We look at the photos.

After we have released the lever, we put it on the pipe. Please note that the pipe must be of a suitable diameter. Then carefully knock out the gum from its place.

After the place is vacated, you need to clean and lubricate well seat and the inner part of the rubber band intended for this part of the chassis of the Toyota Corolla Fielder, with grease. We put it inside and carefully drive it into place. Then what happens reassembly details. Nothing complicated, the same story with the second side. It is best to change the rubber bands in pairs - they are not expensive, so this problem can only hit your time.

It is worth noting that the situation cannot be brought to a critical point when metal parts begin to rub against each other. If you do not have enough time or skills to self replacement, it is best to go to the service station, where you will be replaced.

In general, about the maintenance of the Toyota Fielder chassis

In service, the chassis of the Toyota Corolla Fielder is good enough. There are a lot of spare parts on the market, they are not very expensive and, most importantly, they all change quite simply. For example, replacing stabilizer struts or springs is a very simple process. But for many motorists who are not versed in cars, you will need a step-by-step instruction that will help you figure out and make all the repairs yourself. Replacing rods or ball joints is not a problem at all. To change the silent blocks - as we have already seen for ourselves, in general it will take 5 minutes.

When buying a Toyota Corolla car, you should know that they have high reliability, especially the engine and chassis of the car show themselves well. As for ergonomics and comfort, here the Japanese, as always, are at their best.

http://corollafan.ru

A little about the chassis of the Toyota Corolla

The chassis of the Toyota Corolla Fielder for our roads comes with increased ground clearance. The manufacturer focuses on the road conditions of our country and makes cars as convenient as possible for operation.

Toyota's undercarriage is slightly stiff, but it has impressive ergonomics. For a general summary, it is worth noting that stabilizers often take care of 70-90 thousand kilometers without a single error. The process of replacing them is not difficult, but it requires certain skills and knowledge. The manufacturer has provided for the simplicity of the design. Even the most outsider from cars will understand this. The ball joints of the Corolla undercarriage are capable of nursing more than 150 thousand kilometers.

With systematic maintenance of the car, the chassis can live for a very long time and in no way remind of its existence.

It is also worth noting that silent blocks and stabilizer bushings very often fail in the undercarriage. According to the manual, their replacement is required every 70-90 thousand kilometers. Many motorists who like to drive at high speeds, after 140-150 km per hour, it seems that their suspension is defective, however, for such cars, knocking noises at such a speed are quite normal. Of course, if they are not strong.

Some problems and how to solve them on Toyota Fielder

Whatever brand your Toyota car is, if there is a breakdown of its chassis, then you cannot do without repair. The very name of this compound car suggests that the transport will not go without it. Perceiving the chassis visually, even an inexperienced person who has never done car repairs with his own hands realizes its fundamental role in the movement of vehicles.

All parts and assemblies of the chassis connect the car body to the wheels, and also dampen its vibrations. Toyota chassis, like any other car brand, regardless of the country of origin, is part of the chassis and consists of the following parts:

frame;
bridge beams;
suspensions (front, rear);
wheels.

Suspension undercarriage toyota car Is a collection of devices. It reduces the loads that act on the sprung mass. Individual suspension elements protect the driver and all Toyota passengers from slow, high-amplitude vibrations.

Toyota's front suspension can be dependent or independent, created by the type of MacPherson suspension or linkage. The types of suspensions depend on the drive, model and cost of the car. IN modern automotive industry Toyota, the following types of suspensions are common:

two- and multi-link;
McPherson;
De Dion;
adaptive;
dependent and semi-dependent rear;
for SUVs and pickups.

Of course, the difference is not only in the name itself, but also in the way of assembling and repairing the suspension. All data on the detailed device of the car, the assembly method used, markings of spare parts and oils, methods of repairing individual units can be found in the Toyota operating instructions.

The purpose of the chassis of the car is not only to serve to move transport, but also to ensure the softness and uniformity of the course, reliability and safety of any Toyota model. This is possible only in the absence of breakdowns, any deviations in the operation of the chassis. Otherwise, various difficulties in the functioning of transport are possible, which may precede serious breakdowns and overhaul of your car. To avoid this, you should find malfunctions in the Toyota chassis in time and urgently fix them, providing quality repairs.

How can you determine the condition of a Toyota undercarriage? If there is a suspicion of a malfunction and urgent repair of the chassis or suspension, but the signs of breakage were not visually identified, it is worthwhile to immediately diagnose.

You can do it yourself, if you have a Toyota car chassis diagram, tools, sufficient knowledge about the car device and the ability to conduct a detailed study in a place specially equipped for this. Otherwise, it is necessary to entrust the inspection of the car chassis to qualified auto mechanics, Toyota service technicians. Their experience will help to cope with the task quickly and will contribute to prompt repair and high-quality elimination of the causes of the problem.

It will be much easier to check the undercarriage of the car if there are already identified deviations or certain signs that indicate one or another type of defect in your Toyota:

deviation of the machine to the sides straight motion while driving. If the tires are not worn out and the camber is not broken, then there may be a problem with the front suspension arm, there is a difference in the stiffness of the strut springs, the parallelism of the axles is violated or the wheels are not fully released;

rocking when braking or cornering. Presumably shock absorbers are worn out or springs.Have fallen into disrepair stabilizer bushings lateral stability or there was a breakdown suspension parts;

increased vibration when the vehicle is moving. It is necessary to exclude unbalanced wheels, damage to the spring, deformation of the disc, correct fastening wheel bearings, deterioration in the steering gear of the hinges, check the tire pressure, the fastening of the nuts on the wheels;

extraneous noises and knocks in the suspension. May be broken shock absorberToyota , part of the steering rack.Happened wear of ball joints, steering tips or arm silent blocks,perhaps damage to the levers;

there was a knock in the shock absorbers. It may have leaked or broken support, mounting bushings, body geometry, camber-toe, deformed suspension arm, broken Toyota brake system, wheels are unevenly worn out;

squeak detected when braking when entering a corner. Exclude damage to shock absorber strutsor anti-roll bar bushings;

"Pierces" the suspension. The reason may be deformed tires, damaged discs, steering knuckle or suspension arm, broken strut springs,perhaps, shock absorbers, damaged spring, in wheel bearingappeared inadmissible clearance;

uneven or more than normal tire wear. Worth checking out whether the piston is loosened and to exclude the malfunction of the shock absorber partsin the car;

detected fluid leakage from struts in shock absorbers. If the amount of liquid poured in did not exceed the norm, then there may be a nick on the stem or a malfunction of its oil seal.

No one is insured against damage to chassis parts of a Toyota car. Of course, you can avoid such problems if you are careful while driving, especially when there are roads with poor or impaired surfaces on your way.

Unexpected collision with a serious obstacle on high speed is fraught with instant damage, about which individual parts of Toyota or even parts of the car's chassis can be violated. And this, in turn, will invariably lead, if not to an immediate stop of transport without the possibility of further independent movement, then to the inevitable deformation of a part of the running car. And here already without overhaul Toyota can't handle it.

Even small, at first glance, malfunctions of the car's chassis can threaten in the future with big problems associated with the danger of transport management. Because the use of a car with chassis defects that were not identified or were not repaired on time poses a risk to your life.

Unfortunately, it is not always possible, due to the inexperience or inattention of the driver, to independently determine that the chassis needs repair passenger car Toyota. But it is imperative to remember the importance of periodic inspection of personal transport and its timely adjustment. Don't forget given low quality many of our roads, that diagnostics and repairs of the chassis of a Toyota vehicle should be carried out on a regular basis.

If you yourself were able to inspect the Toyota car and identify the cause of the breakdown, then you can also repair the chassis of the car with your own hands.

What do you need to repair the undercarriage of a car, in addition to specialized knowledge of your Toyota device? In order for the technology of repairing the chassis of the car to be fully maintained and your work to be as easy as possible, you need a high-quality tool.

Equipment for repairing the undercarriage of a car often involves its manufacture for a specific toyota model... These are all kinds of pullers, with which it is easier to cope with the disassembly of heavy parts of the chassis, and to start repairing yourself faster.

In order for the undercarriage of a Toyota car to acquire its original appearance and maximum reliability after repair, it is necessary to purchase everything for the upcoming work at a car shop. With this approach, you can easily cope with the problem of any part of the Toyota chassis, you will carry out high-quality repairs with your own hands.

To diagnose deviations in the operation of the unit and adjust them, you may need:

backlash detector... It is used to detect backlash in different elements of the car;

backlashor side slip tester... Determines the state of the steering column of any Toyota model;

suspension tester... It is necessary to find out the deviations in the operation of car suspensions.

Purchasing a tool for repair is a very real task, but only Toyota car services and workshops have a lift or a special box with a pit. If necessary, the owners of the services can provide you with such a room for rent. But this pleasure is not cheap. And not everyone will be able to independently cope with the control of the lift.

Here you have to choose what you like best. The fact that the car service personnel will undertake the entire complex of repair work has its advantages. They have repeatedly carried out work on the repair of the chassis of the Toyota of the same model. Therefore, their experience will allow them to quickly cope with any task, eliminate the defect in all Toyota models.

But there are pluses for DIY repairs: the car owner has more information about the features of his own transport and will be able to approach the repair as thoroughly as possible. Knows everything weak spots transport, which gives him an advantage over any auto mechanic.

Special tools, adherence to repair technology, original spare parts help ensure that the upcoming dIY repair Toyota chassis will be produced with high quality. Adjustment or repair of such parts may await you:

hubs;
steering gear;
ball bearings;
racks;
semi-axes;
cV joint;
steering joint.

Exists renovation work, which must be regularly carried out on all cars: replacement of silent blocks, ball joints. Stabilizer bushings often wear out on Toyota. Each brand of car, its model has a certain frequency of replacement of these parts. You can independently determine that there is a problem by the rattling sound when transporting vehicles on an uneven road.

Timely replacement of unusable shock absorbers at Toyota will help you save on additional purchases: new tires, bearings, ball joints and transmission shafts. Because long-term operation of worn shock absorbers will inevitably lead to failure of the listed components and more complex repairs.

Repair of components of the undercarriage of the car may be necessary in brake system... Dismantling possible brake discs, replacement of brake hoses, pipes. Many have to deal with current repair undercarriage of Toyota vehicles with the following installation work:

stepped bearings;
steering tips.

Camber adjustment - it is reasonable to entrust the toe in Toyota to a qualified technician who has necessary tool and the knowledge to accurately correct unbalanced wheels.

Stabilizers on Toyota often cure up to 90 thousand mileage. The process of replacing them is simple due to the simplicity of the design, but requires from a person the knowledge and skills acquired during the car repair with his own hands.

The front suspension is the main unit in Toyota's handling. She takes over the first all unnoticed pits and bumps on the roads. Sometimes its levers fail. A damaged upper arm shelf can be repaired. An urgent replacement for a new one requires the axle of the lower arm.

Noises in the Toyota suspension, knocks occur from deformation of the joints, gaskets, rubber bushings, which leads to weakening in the sockets of car parts. Noise can be eliminated only by replacing damaged parts or during overhaul.

Clutch problems are identified through Toyota Diagnostics. This must be done with the engine off, repeatedly pressing the pedal. Extraneous rattles, noises, knocks and creaks are unacceptable. If you hear a crunch when you engage the reverse gear, then, most likely, the clutch discs are out of order. Repair is indispensable here.

The operating condition of the pedal is indicated by the smoothness of the ride, which is characteristic of Toyota, and certain standards for measuring its travel. The calculation is performed by determining the difference in the distance from the floor to the pedal without pressure.

In maintenance and repair with your own hands, the undercarriage of a Toyota car is uncomplicated. But only for those people who know what the chassis of the car consists of and how to correctly and consistently carry out all the adjustments and repairs.

This is very important because safety precautions when repairing the chassis of a Toyota vehicle require the strictest implementation. Deviations from the rules can lead to even more complex vehicle breakdowns and injuries to inept craftsmen.

In the modern car market, there are quite a variety of spare parts that will help you do the repair of car chassis parts with your own hands. Having step by step instructions, a self-confident person will not only be able to adequately repair the chassis of a Toyota car, but also save his own funds.

And yet, if you are not confident enough in your abilities, do not have the necessary stock of knowledge, then the right decision would be to entrust Toyota diagnostics and repairs to professionals.

4.1. Front suspension

4.1.1. Design features

1 - compression valve body;
2 - compression valve discs;
3 - throttle disc of the compression valve;
4 - a compression valve plate;
5 - compression valve spring;
6 - compression valve holder;
7 - recoil valve nut;
8 - recoil valve spring;
9 - recoil valve plate;
10 - recoil valve disc;
11 - throttle disc of the recoil valve;
12 - piston;
13 - bypass valve plate;
14 - spring of the bypass valve;
15 - plunger;
16 - plunger spring;
17 - the guide sleeve of the stem with a fluoroplastic layer;

18 - guide sleeve holder;
19 - O-ring of the rack body;
20 - stem oil seal;
21 - gland holder;
22 - gasket of the protective ring of the stem;
23 - protective ring of the stem;
24 - nut of the rack body;
25 - support of the compression buffer;
26 - stock;
27 - spring cup;
28 - swing arm;
29 - stem limiting sleeve;
30 - rack body;
31 - cylinder;
32 - drain tube

Front suspension assembly

1 - telescopic rack;
2 - nut;
3 - eccentric bolt;
4 - nut;
5 - rounded fist;
6 - drive shaft front wheel;
7 – protective case hinge;
8 - outer shaft hinge;
9 - lower arm;
10 - spherical bearing;
11 - decorative disk (cap) of the wheel;
12 - hub;
13 - brake disk;
14 - protective casing;
15 - swing arm;
16 - lower support cup;
17 - suspension spring;
18 - protective cover of the telescopic rack;
19 - compression stroke buffer;
20 - upper support cup;
21 - bearing of the upper support;
22 - the upper support of the rack;
A - control dimension

Rounded fist and front wheel hub parts

Front suspension independent, telescopic, with hydraulic shock absorber struts, coil springs, lower wishbones with braces and anti-roll bar.

The main suspension element is a telescopic hydraulic shock absorber strut 1 (fig. Front suspension assembly), the lower part of which is connected to the steering knuckle 5 two bolts. Top bolt 3 , passing through the oval hole of the rack bracket, has an eccentric belt and washer. Turning the upper bolt changes the camber of the front wheel.

On the telescopic support: coil coil spring 17 , polyurethane foam buffer 19 compression stroke, upper bearing 22 stand assembled with bearing 21 ... The top support is secured to the mudguard strut with three self-locking nuts. Due to its elasticity, the support provides swinging of the rack during suspension travel and dampens high-frequency vibrations. The bearing mounted in it allows the rack to turn together with the steered wheels. The rack housing contains parts of a telescopic hydraulic shock absorber shown in Fig. Telescopic stand... In the upper part of the cylinder there is a hydraulic recoil buffer, consisting of a plunger 15 and springs 16 ... It limits the movement of the stem during the recoil stroke.

The lower part of the steering knuckle 5 (fig. Front suspension assembly) is connected by a ball joint 10 with lower arm 9 pendants. The braking and traction forces are absorbed by longitudinal braces, which are connected through rubber-metal hinges to the lower arms and to the front supports of the front suspension cross member. At the junction of the brace with the lever and the front support, adjusting washers are installed, which change the angle longitudinal tilt pivot axis.

In the steering knuckle (Fig. Steering knuckle and front wheel hub parts) a closed-type double-row angular contact bearing is attached, on the inner rings of which a hub is installed with an interference fit 4 wheels. The bearing is tightened with a nut 6 on the shank of the outer hinge of the wheel drive and is not adjustable. All front and rear wheel hub nuts are the same and have a right-hand thread.

The anti-roll bar is a bar, the knees of which are connected to the lower suspension arms through struts with rubber and rubber-metal hinges. The middle (torsion) part of the rod is attached to the body with brackets through rubber cushions.