Hyundai Sonata Workshop Manuals EWD

Hyundai Sonata download repair and maintenance manual for your car. electrical equipment diagrams, engine repair, diagnostics of error codes, location of sensors and their replacement. valve adjustment

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Hyundai Sonata engine and gearbox resource

The history of the Hyundai Sonata is much more interesting than it seems at first glance. After all, the car has been produced since 1985, it has been repeatedly transformed and received a new technical stuffing. But motorists are primarily interested in the weak points of the Hyundai Sonata of the 4th, 5th, 6th and 7th generations.


The fifth generation Sonata was marketed under the name HF. The car was equipped with engines of 2.0, 2.4, 2.7 and 3.3 liters. The most popular options are G4KA for 2.0 liters, G4KC for 2.4 liters and G6DB for 3.3 liters. The cylinder blocks in them are completely aluminum, the units are equipped with CVVT phase change systems. The most interesting in this line can be considered a V-shaped 3.3-liter unit with 233 hp. With.


In the sixth generation Hyundai Sonata, the engines of the Theta 2 series with a volume of 2.0 and 2.4 liters appeared. Versions with distributed and direct fuel injection are available. Compared to their predecessors, these units require more frequent replacement of consumables and are more sensitive to the quality of gasoline. The resource of the internal combustion engine of the Theta 2 series, according to the manufacturer, is at least 180 thousand km.

G4JP Sirius

Owners of a Hyundai Sonata with a two-liter G4JP gasoline engine often complain about the following problems:

  • Erratic idle.
  • Turnover fluctuations.
  • High consumption of gasoline.

The above symptoms occur after a scheduled timing belt replacement. The reason lies in the incorrect setting of marks, between which there should be 21 teeth of the belt. This suggests a clear conclusion: you need to change the belt in a proven service, and do it in a timely manner. After all, when it breaks in the Sirius engine on the Hyundai Sonata, the valves bend.


With normal maintenance, the resource of the G4JP engine reaches 300-400 thousand km, which confirms the experience of using the Hyundai Sonata in a taxi.


The in-line four-cylinder engine produces 131 hp. With. With proper maintenance, the unit is quite reliable, the main thing is to change the oil and filters, gaskets, oil seals, timing belt in a timely manner. Typical signs that indicate serious damage include:

  • Strong vibration, noticeable even at idle.
  • Decreased dynamics.
  • Extraneous sounds that increase with increasing load.

G6BA Delta

This is the most powerful six-cylinder G6BA at that time with 172 hp. With. The power unit of the Delta series with hydraulic lifters and an electronic injection system has a volume of 2.7 liters. Aluminum is used for the cylinder block. With proper maintenance, the G6BA, according to the manufacturer, runs up to 500 thousand km. But it is very demanding on lubrication, the lack of which sharply reduces the resource of hydraulic lifters and the entire motor as a whole.


It is a 1998 cc four-cylinder petrol engine. see Power is 144 liters. With. Used for Hyundai Sonata HF. With improper maintenance, the G4KA exhibits typical malfunctions such as excessive noise and vibration. But the first owner by this time, as a rule, manages to get rid of the car, thereby saving himself from serious repair costs.



The 2.4L engine is quite reliable. The weak point can be considered a block of balancing shafts. When it breaks, oil starvation begins, followed by critical wear. All this is accompanied by a characteristic "diesel" noise.



This is the most powerful in the Hyundai Sonata line of engines. Most breakdowns are associated with a violation of the maintenance regulations or operating standards, banal overheating. But the overhaul runs of the 3.3-liter G6DB are longer than those of the same G4KA and G4KC.

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