This is due to the fact that our climate is not designed for the operating conditions specified in the regulations maintenance. Severe winters and constant temperature changes in spring and autumn can significantly reduce the life of the timing belt. Ultimately, if you run a timely check, the consequences of the repair can be several times higher than the cost of a conventional replacement, including cylinder head repair.

Price:

Where to change in St. Petersburg:

If Chevrolet Cobalt equipped not with a belt, but with a chain, it runs significantly longer than the belt. On average 150-300 thousand km. This is due to the fact that the chain wears out much longer than the belt. But despite this, it also requires checking at least every 70-80 thousand km. The fact is that the chain is not so noticeable, but it still stretches over time and this can lead to jumping one tooth, which will also lead to dire consequences.

The advantages of a timing belt drive are that the cost and maintenance of such a motor is lower than that of a chain motor. But at the same time, chain motors may not operate a little louder than those equipped with a belt drive.

Main features:
- wear of the belt surface;
- visible cracks, especially when bending;
- oil stains;
- other defects that should not be on the belt.

In most cases, we also recommend changing the water pump and checking the coolant and engine oil. The need to purchase rollers, tensioners, dampers, etc. determined by the mechanic during operation or at the diagnostic stage.

Diagnostics during repairs are free with us!

If the car is not drivable, we can send a tow truck.

The Chevrolet Cobalt has an engine with a displacement of only 1.5 liters. Chevrolet Cobalt engine power 105 hp. Other powertrain options available budget sedan Cobalt is not offered in Russia.

The main feature of this Chevrolet Cobalt engine is the presence timing chains. A timing chain is much more practical than a belt, plus it requires less attention. The S-Tec series engine was specially developed for emerging markets with harsh operating conditions. Photo of the engine is just above. Petrol 16 valve The GM Powertrain S-Tec III is combined with both a 5-speed manual transmission and a modern 6-speed automatic transmission, which we will discuss below. In the meantime, detailed Chevrolet Cobalt engine characteristics.

Engine characteristics Chevrolet Cobalt 1.5 B15D2

• Working volume – 1485 cm3
• Number of valves/cylinders – 16/4
• Timing drive – chain
• Ecological class – EURO 5
• Gas distribution mechanism - DOHC
• Power system – distributed fuel injection
• Power – 105 hp/78 kW. at 5800 rpm
• Torque – 134 Nm at 4000 rpm
• Maximum speed – 170 (manual transmission5) and 163 (automatic transmission6) kilometers per hour
• Acceleration to the first hundred – 11.7 (manual transmission5) and 14.1 (automatic transmission6) seconds
• Fuel consumption in the urban cycle – 8.4 (manual transmission5) and 10.4 (automatic transmission6) liters
• Fuel consumption on the highway - 5.3 (manual transmission5) and 5.9 (automatic transmission6) liters
• Fuel consumption in the combined cycle – 6.5 (manual transmission5) and 7.6 (automatic transmission6) liters

As for the transmission, then main feature budget Chevrolet Cobalt is the presence of a 6-speed automatic. Chevrolet automatic transmission Cobalt is a GM 6T30 assembled in Korea. Photo of automatic transmission Chevrolet Cobalt below.

Fuel consumption with automatic in the city, the Chevrolet Cobalt, even with a very modern automatic transmission, exceeds 10 liters. For that, on the highway the sedan can boast of very moderate consumption, just under 6 liters.
Regarding acceleration of Chevrolet Cobalt with automatic transmission, then the car accelerates to hundreds in more than 14 seconds. Naturally power unit with a manual, albeit 5-speed transmission, it is more dynamic.

Today the difference in price for a Chevrolet Cobalt with automatic and manual is 59 thousand rubles. Moreover, in the cheapest Cobalt configuration there is no air conditioning, but the same version, but with automatic transmission, already has air conditioning. Another incentive to buy a car with an automatic transmission.

If cracks, tears or separation of rubber from the fabric base are found on the belts, the belts must be replaced.

Drive belt layout auxiliary units car with air conditioning.

The accessory drive pulley, mounted on the engine crankshaft, transmits rotation through a belt to the generator, coolant pump and air conditioning compressor pulleys. Guide and tension rollers serve to change the belt routing and ensure correct tension. A pulley of increased width is attached to the coolant pump shaft, driving the power steering pump through a separate belt.

Depending on the vehicle configuration, there are two options for drive schemes for auxiliary units: with air conditioning and without air conditioning.

Operations shown on a vehicle with air conditioning.

We carry out the work on an inspection ditch or overpass.

If we remove the power steering pump drive belt for replacement, then use a knife to cut the belt.

If the belt is not being removed for replacement (for example, to remove or replace another auxiliary drive belt), engage the highest gear in the gearbox and push the car back until the holes in the pump pulley align with the pump mounting screws.

Through the holes in the pump pulley, use an “8” hexagon to loosen the three screws securing the pump.

Having engaged the highest gear in the gearbox, we gradually push the car back with our knees.

At the same time, we move the belt from the power steering pump pulley.

After removing the belt from the coolant pump pulley, remove the belt from the engine compartment.

Belt marking 4РК 643 (four-V-belt, length 643 mm).

We put it on new belt onto the coolant pump pulley and push the car back (with top gear engaged).

At the same time, we put (as if rolling) the belt onto the power steering pump pulley.

Tighten the pump mounting screws.

To check the condition of the other belt (drive of the coolant pump, air conditioning compressor and generator), remove the right wheel and the right mudguard of the engine compartment.

Turn the head “17” crankshaft for the bolt securing the auxiliary pulley clockwise and inspect the belt along its entire length.

If cracks, tears or separation of rubber from the fabric base are found on the belt, the belt must be replaced. To do this, you must first remove the power steering pump drive belt.

To loosen the belt tension, put a 19-sided socket wrench on the corresponding protrusion of the tensioner and turn the roller bracket counterclockwise, overcoming the resistance of the tensioner spring.

Remove the belt from the tensioner roller.

After removing the belt from the pulleys, remove it from the engine compartment.

Marking of the drive belt for auxiliary units 6РК 1814 (six-V-ribbed, 1814 mm long).

If the belt is not removed for replacement (for example, when dismantling a generator), before starting work, mark the direction of rotation of the belt.

To replace the tensioner (for example, if a spring breaks), use a 15-point head to unscrew the bolt securing the tensioner.

Remove the bolt and tensioner.

Tensioner

Install the tensioner and auxiliary drive belt in reverse order.

In this case, the protrusion on the tensioner body should fit into the recess on the engine.

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Asks: Yuri Ustinov.
Question:So is it still a chain or a timing belt?

I want to buy a Chevrolet Cobalt. But in our city there are few of them sold. I called one seller, he says that he changed the timing belt. To the other, he says that there is a chain on Cobalt and it only needs to be tightened. He did not tighten it, since the mileage is no more than 45,000. He says that it is necessary to tighten it when there is a clattering noise or the mileage exceeds a hundred!

Where is the truth and where is the lie? Is it worth buying Cobalt with a timing chain mechanism?

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Alexey "technical specialist"

I'm just sick of cars. I try to study in detail every car I have owned. I enjoy driving at night on city streets. I try to do my own repairs on my cars!

About the engine

The timing mechanism on the Chevrolet Cobalt is chain.

The engine in the Chevrolet Cobalt is durable and has excellent technical characteristics.

As a result, the motor is quite inexpensive to repair. Its also special feature is that It has a timing chain, not a belt. .

Advantages of the chain mechanism

Since the chain is more reliable, it can last longer than a belt.

Chain replacement kit.

It will have to be changed after 250,000 kilometers.

But it is worth remembering that it needs to be tightened periodically . It is recommended to do this every 70–80 thousand kilometers mileage

Disadvantages (increased noise)

Features of chain replacement

New chain up close.

Replacement is made only complete with rollers. If you tension the chain on time, it will last for a long time.

Choosing it will also not be difficult, since there are few engine modifications in Cobalt that are intended for use in domestic conditions. To buy a chain, you should visit only specialized stores. You should buy only from time-tested sellers in order to save yourself from unnecessary hassle and costs.

At first glance, it seems that the Chevrolet Cobalt is ideal for all big family. And indeed it is, but it is important to know the problems of each car before buying, because an attractive design and spaciousness inside are not indicators of a decent car. Unfortunately, the Chevrolet Cobalt also has diseases and weaknesses.

Specifications

• Sedan;
• Modification: 2.0 Turbo Ecotec;
• Engine volume – 1.9 l, power – 260 hp;
• Front wheel drive;
• Transmission: manual 5-speed and automatic 4-speed;
• Volume fuel tank– 47 l;
• Fuel consumption: in the city - 10.7 liters, on the highway - 7.8 liters per 100 km.

Advantages and Chevrolet advantages Cobalt from 2011 release

1. Harmonious image of a city car;
2. The salon is spacious;
3. Adjusting the driver's seat;
4. Comfortable grip on the steering wheel;
5. Armchairs back row can be folded, which allows you to transport long cargo;
6. High ground clearance;
7. Excellent glass washer;
8. Informative mirrors;
9. Full size spare wheel.

Weaknesses of the Chevrolet Cobalt since 2011

• Assembly;
• automatic transmission;
• Suspension arms;
• Pad valve cover;
• Timing chain;

Now more details...

The assembly of the car is a clear flaw. You may notice water in the place where the spare tire is stored. The reason is poorly sealed cracks behind the rear bumper. A sealant will help fix the problem. All seams must be treated with the product.

Headlights are another sore point of the sedan. Over time, they begin to fog up. Solving this problem is extremely difficult. As practice shows, all the methods that drivers try are not effective.

The disadvantage of automatic transmission is its poor tolerance to slipping. If you regularly organize races on this car, then the node will quickly fail. A sudden start at a traffic light will also have a negative impact on his work. A gentle ride and careful handling will help avoid this. Many drivers recommend warming up the transmission. Especially during the cold season.

Automatic transmission solenoids.

This problem can also be found on many Chevrolet Cobalt cars. Signs of damage to the solenoid ( solenoid valve) is - the car does not move in any gear and when moving the gear shift lever there is no characteristic push to engage the gear. Most likely, if the automatic transmission solenoids are faulty, you will not be able to sell the car, but you need to know about this in the future.

Suspension arms.

Unfortunately, the Cobalt's suspension arms are really problematic. And in this case there is no escape. This happens mainly during sudden impacts, in the event of a collision with high speed to various obstacles in the form of bumps or holes. But during a test run before purchasing, it is difficult not to notice this malfunction. The car becomes difficult to drive, and on the spot you need to pay attention to tire wear. If the inner edge is worn, this gives an indirect indication that the lever is damaged.

Valve cover gasket.

Of course, we can say that this is, in principle, a trifle and has virtually no effect on the oil level in the engine, but constant oil leaks from under the valve cover also affect the disruption of heat exchange and the possible process of spontaneous combustion and the service life of some electrical elements. Therefore, when purchasing, you need to inquire whether the gasket was replaced with a non-original one and make sure that there are no oil leaks from under the cover.

Considering that the Chevrolet Cobalt is no longer produced and is not supplied to domestic markets The mileage of many cars is already over 100 thousand km. And accordingly, when purchasing, you need to pay attention to the condition of the timing chain. If the chain was not changed by the previous owner, then replacement will cost about 20 thousand rubles. Generally on this car The timing chain cannot be considered a weak point, but it is definitely worth paying attention to when purchasing.

Anti-roll bar struts and bushings.

It can be immediately noted that these elements are not critical malfunctions in case of their failure. Also, replacing them is not such an expensive operation, and besides, the stabilizer struts and bushings are consumables. TO weak points These elements can be attributed due to their rapid wear. Therefore, when purchasing, you need to pay attention to the condition of the racks and bushings. It can be determined indirectly, both when driving by the characteristic knocks of the suspension, and on the spot when rocking the car to the sides.

Disadvantages of the second generation Chevrolet Cobalt

1. Increased fuel consumption;
2. "Crickets" in the cabin;
3. Frequent fogging of headlights;
4. Poor quality processing of seams at the junction of the trunk and rear bumper(water ingress);
5. Weak engine;
6. Stiff suspension;
7. Poor quality plastic in the interior;
8. Expensive to maintain.

Bottom line
In conclusion, we can say and recall that frequent breakdowns and shortcomings are present in every car. The main thing is that these problems do not result in a huge waste cash to eliminate them. Accordingly, before purchasing, you need to weigh the pros and cons, and when purchasing a car, it is best to have it diagnosed and examined by professionals in this matter.

Weaknesses, advantages and disadvantages of the Chevrolet Cobalt was last modified: December 10, 2018 by Administrator