The content of the article:
- Fuel supply system
- Fuel burner
- Engine ECU
- Car painting
- Turbocharging system
- Windshield
- Particulate filter
- Electrician
- Air conditioning
- Airbags
The modern car can be called the pinnacle of engineering. This is a rather complex system, and even if the driver knows well how to repair a particular unit, he is well versed in the device of the machine, there are many units that should not be repaired on their own - an exception can be considered repairs where a failed part changes to a standard, original one ...
You need to make a reservation right away: These tips do not apply to those drivers who not only have an overpass in their garage, the necessary equipment, but also the most important "tool" of a real specialist - hands that can make repairs. Those who correctly assess their knowledge and skills should heed the advice and go to a car service, if a breakdown is expected in such units and assemblies as:
- Fuel system.
- Car electrician.
- Turbocharging system.
- Glass replacement and painting.
- Electronic engine control unit.
- Air conditioning and replacement of airbags.
Fuel supply system
An exception to this clause can be considered the following: if a gasoline engine is installed in the car, each driver must be able to replace the spark plug. It is not a repair, but a replacement. Also in diesel trim levels - everyone should learn how to replace the injector. But the repair of the fuel system is the lot of professionals. Learning to repair "in the direction of travel" will not work.
If the car is equipped with common rail fuel supply system, then without the availability of equipment, even specialists will not be able to repair and install fuel lines.
Fuel burner
High precision equipment is required to simply make a fuel injector diagnosis. Home purging with carburetor fluid of this small part will only show roughly where the breakage is.
Moreover, in order to find a faulty injector in the fuel unit, skill and knowledge are also required. Observing the operation of the fuel system, you can "calculate" the faulty part by the rate of return flow ... and that's it.
Repairing a nozzle is a painstaking job, small cracks in the part can only be seen with special equipment. In 90% of cases, modern unit injectors cannot be repaired at all.
Engine ECU
Drivers of women, who senselessly look at the open hood of their car, if they have a breakdown on the highway, cause great affection. The same feeling is caused by male drivers who can sort out the engine with their eyes closed, but do not understand anything about how the electronic engine control unit works.
Modern ECUs are a clear and complex system, the repair of which should only be entrusted to a professional. The same applies to those cases when chip tuning is required. 90% of independent installations lead to the fact that, in the best case, the car loses its driving characteristics, in the worst case, it is a complete failure of the ECU.
Modern blocks are non-separable systems, they are cut in a car service... It is impossible to carry out this procedure without professional equipment, it is also quite difficult to find a specialized service, therefore, instead of repair, they often replace the ECU, which is also better to entrust to professionals.
Car painting
There are few drivers who are indifferent to the color of their car and approach the assessment of the state of the paintwork of their car, as in the saying: "Tanks are not afraid of dirt - the worse the color, the better the cross-country ability."
Painting in a garage can be much more expensive than in a service - it is enough just to “not guess” the color or not to withstand an additional layer. Therefore, it is better to restore the coating in a professional workshop.
Even if a paint type such as Plasti Dip liquid rubber is chosen, three to five coats of paint are guaranteed in a first-class auto repair shop. Removable parts will be painted separately, while the glass will remain clean.
Turbocharging system
Turbine repair and diagnostics are not always available in the garage, even if the driver himself knows very well what and how to do. The reason is that many cars need to be installed on an overpass just to carry out diagnostics. A viewing pit is often not suitable.
For example, when repairing a turbine on a Rover (3.6 diesel), which is equipped with two turbocharger systems, to check the left turbine, you need to remove the subframe, steering rack, and front gearbox. When the gearbox is removed, a large number of suspension parts must be disconnected and much more. And this is only a preparatory stage - the diagnosis of the turbine itself requires professional skills and equipment.
Repairing the turbine, even if the driver was able to disconnect the unit in the garage, requires additionally: replace all O-rings, oil seals, change the oil.
And the most the main point in the repair of the turbine itself is balancing the rotor, which is produced on calibration and balancing equipment. Washing small parts in an ultrasonic chamber, cleaning and simultaneously replacing - all this requires special experience and skill.
Windshield
It seems that you can easily and independently replace the windshield with a similar, original one. And here a dangerous surprise awaits motorists - a millimeter deviation during pasting threatens that the windshield will fall on the driver and passenger at the slightest accident. Leaks and squeaks will also not bring pleasure when driving. The installation of the glass should be carried out in the service, where the mechanic will check the accuracy of the installation geometry with a level and will carry out a hermetic gluing.
Particulate filter
Modern cars are designed with all possible environmental parameters in mind. Particulate filters are believed to help preserve the environment and minimize CO emissions. At the same time, few people care about the quality of the fuel and the fact that after 30,000-50,000 km of run, the cleaning unit is completely clogged, the car loses its driving performance and all parts wear out quickly.
Alternative - removing the particulate filter and replacing the catalyst with a flame arrester... But you don't need to do this procedure in the garage after watching videos from YouTube. Removing a unit from a car is a long and painstaking process. Correctly knock out a catalyst, install a snag, connect sensors so that the "brain" of the machine takes a new part for a filter element - all this requires skills and professionalism.
Electrician
Some drivers find it difficult to replace a mechanical window with an electric one on their own, although this procedure is not too difficult. All other electrical components of the machine do not differ in this simplicity. Therefore, if you perceive such a thing as "phase shift" as an insult, then with all the problems associated with the electrics in the car, contact the car service. This is important so that a short circuit does not occur and a fire breaks out.
Air conditioning
Charging and cleaning car air conditioners seems to be a fairly simple matter - it's not even repair, but prevention. But not every driver can do this on their own.The reason is that during the repair it is required to check the electrical circuit in the clutch assembly, the evaporator system for the absence of oil, the radiator and the piston assembly. In cars such as Volvo, Mazda and Opel, it is required to systematically check the clearance between the compressor clutch and the pressure plate.
Therefore, a simple procedure to charge a compressor can become time consuming and expensive. Specialists in one day will be able to replace the refrigerant and repair the air conditioner at no additional cost. It is recommended to change the coolant in the air conditioner twice a year.
Airbags
Improperly installed airbags can open in a minor collision, even when you simply hook the front bumper on the garage door. This is fraught not only with a bruise of the chest and concussion of the brain - there have been isolated cases of death of adolescents who were killed not by an accident, but by the force of the departure of the airbag.
After repairing the body, install new pillows only in a specialized car service. This is the safety of the driver and passenger.
The desire to save money and learn how to repair your car yourself is a very commendable endeavor. For many, garage repair is the best pastime, both a hobby and an active rest. Many drivers can and can fix their cars. But to know the simple rules for the expediency of self-repair is simply necessary. If you are interested in just disassembling and trying to fix the nozzle is one thing, but installing it in a car and taking the family out into the countryside is quite another.
