Instructions for changing transmission oil yourself in a Chevrolet Cobalt. How to change the oil in a Chevrolet Cobalt automatic transmission

Agree, for a car, a mileage of 35 thousand kilometers is not so much. This is exactly the value recorded on the Chevrolet Cobalt odometer. As it turns out, 35 thousand kilometers can seriously age a car, although a lot depends on driving style and operating conditions.

Yes, the car was “lucky” to participate in quite severe tests. At the same time, the car did not cause any special troubles, although it was not without difficulties.

During another trip, a stone hit the windshield of the car and almost immediately a long crack appeared on the surface. With such a malfunction, it is no longer possible to pass the technical inspection, and, frankly speaking, it interferes with the review. It’s good that the car was insured under Casco, so a couple of days later the insurance company arranged to replace the damaged glass.

Any engine consumes oil to one degree or another. Cobalt is not excessively gluttonous in this regard. However, after another test, traces of oil appeared on the inside of the hood lid. And this is actually very strange, because the probe shows normal level, and inspection showed that there are no traces of oil in the filler plug on the gearbox block, the plug is tightly screwed on.

Changes also appeared in Cobalt’s behavior: the automatic transmission jerks when changing gears, and this is progressive. The car was re-inspected. In order to gain full access to the drain plug, it is necessary to dismantle the protection of the engine compartment.

It turned out that the drain plug was screwed on well, but the rubber plug of the gearbox housing had disappeared somewhere, and it was from there that the oil was splashing out. If you are interested, this plug is located on the side of the unit, slightly below the left drive. Surely, it was lost while driving on bad roads, where the whole car shakes and throws from side to side. The car owner ordered an original plug, and while it was in progress, he closed the hole with a rubber seal of the appropriate size.

This has its own advantage: the owner now knows exactly what oil level should be in a warmed-up gearbox and the transmission oil change interval. In the first case, oil must be poured under the edge of the filler hole, and the oil must be changed every 150 thousand kilometers under normal operating conditions and every 75 thousand kilometers under extreme conditions operation.

It should be emphasized here that the six-speed automatic transmission that is installed on the Cobalt is a rarity in the segment of budget sedans. According to the owner, he is pleased with the gearbox: it is well tuned, allows you to start sharply and quickly gain speed. Not once did he get the feeling that the automatic transmission was thoughtful and took a long time to react to road conditions. Yes, we must not forget that the Chevrolet Cobalt is not a racing car, but a family car. Probably, this is precisely the reason why the car developers have manual gear shift buttons on the selector handle. It is extremely inconvenient to press there from the driver's seat while driving and control the box. And at first, out of habit, you confuse increasing and decreasing speed.

What about our gasoline consumption? If you drive along the highway, the consumption is approximately 6 liters per 100 km. In urban conditions, the engine will “gobble up” about 10 liters, although if you avoid traffic jams, this figure will more likely be equal to 8.5 - 9 liters.

During the second technical inspection, the service center cleaned the windshield washer nozzles, and the wipers were also replaced.

One winter morning, the owner of the car, leaving the parking lot, turned the steering wheel all the way and heard a crunching sound. After warming, the sound disappeared, and after the temperature dropped, it appeared again. As it turned out, the reason was wear on the support bearings of the front struts.

Another trouble was associated with a tree falling onto the roof. The result was a dent and scratches. To summarize, it can be noted that despite its Uzbek assembly, Cobalt showed itself on the good side, although you shouldn’t expect too much from it.

Such work can be performed when an automatic transmission is being repaired on Cobalt, since the manufacturer provided for filling the oil once during assembly, and it should be used throughout the entire service life of the unit. It is recommended to trust such work to masters, but if you have the desire and opportunity, then you can do it yourself.

This is what the oil looks like after 50,000 km.

• Mechanism lubrication.
• Heat removal.
• Reducing the load.
• Removing particles that may form as a result of friction of parts and corrosion.

The color of the liquid can also determine where the leak is coming from. Initially, the oil in the automatic transmission is reddish in color.

Leakage: reasons

• The seals are worn out.
• The surface of the shafts is worn.
• The seal is worn out.
• The sealing layer is damaged.
• The bolts have become loose.

If the fluid level in the automatic transmission on Cobalt is low, the clutches may fail. If this happens, the oil will be heavily contaminated. Such oil will no longer be able to remove heat well from rubbing parts, as well as provide their lubrication.

Checking the level and quality of oil in the automatic transmission

After drying, the oil should not leave any traces.

You can check the amount of lubricant in the automatic transmission on Cobalt using a dipstick. There are two marks there – Max or Min. The oil should be located between them.

When replacing fluid, you should use only the type recommended by the manufacturer. You cannot use oil that is of a lower class.

In a Chevrolet Cobalt synthetic oil is filled at the factory , which can last throughout the entire life of the automatic transmission. But here it is worth remembering that the oil can become contaminated, and therefore it must be checked periodically and topped up if necessary, and also changed completely. Replacement can be complete or partial.

You can partially change the fluid yourself. To do this, you need to unscrew the drain plug on the box, first placing the car on a lift. You need to drain about 30-40 percent of all the oil. The same amount costs to add to the box. You need to check its level using a dipstick.

Complete replacement

A complete oil change in an automatic transmission with Cobalt is carried out using a special installation. This kind of work should be done at the service.

Partial replacement

Filling new oil in an automatic transmission on a Chevrolet Cobalt.

The liquid should be poured into the box through a special hole in the place where the dipstick is located. The oil level must also be monitored using a dipstick. After a complete oil change, you should drive about 15–20 kilometers. Then, if necessary, add oil.

Automatic transmission oil type

GM Dexron VI grade oil was filled from the factory.

conclusions

The regularity of fluid replacement may depend on the operating conditions of the car, as well as on the nature of movement or mileage. But you need to focus not on mileage, as the car manufacturer recommends, but on the degree of contamination of the liquid.

It is convenient to work with us:

1. If you have chosen our service and decided to entrust the work to us, then you first arrange a visit with the master. If your car is not running or you are afraid to drive, then our tow truck will deliver the car to us - for free.

2. If the car arrives under its own power, the technician performs initial diagnostics directly on the car and, of course, computer diagnostics using a specialized scanner. If you have previously done diagnostics with us and decided to carry out repairs with us too, then it is included in the price, i.e. in fact for free. A kind of test drive for us.

3. Then the gearbox is removed and subsequently disassembled ( fault detection). To avoid misunderstandings, it is happening in your presence. Right there on the spot price is agreed upon. We dare to assure you that the price for repairing a Chevrolet Cobalt automatic transmission in Moscow is one of the lowest, taking into account the quality of the work performed and the strict fulfillment of warranty obligations.

4. After the restoration procedure, exit diagnostics are performed with the vehicle running in. We will inform you about this.

5. You come to us pick up the car and make a trip with the master(you're driving) to make sure that everything is fine.

6. Good luck to you! For repair of automatic transmission Chevrolet Cobalt is included.

If you notice improper operation of your Chevrolet Cobalt automatic transmission: shocks when engaging/shifting gears, slipping, jerking, delays when changing gears, absence of any gear, etc. That write - consultations we have free. If necessary, you can come for diagnostics and change the oil.