For an unprepared Toyota Camry car owner, replacing spark plugs can be a real problem. This is especially true for the 3.5-liter V-shaped engine installed on Camry in 40 and 50 body styles. On new engines, the coils are installed directly on the cylinder head, eliminating the need for armored wires. This is what often confuses car owners who are accustomed to the standard scheme, which includes a pair of coils, spark plugs and armored wires for them.
Replacing spark plugs for a Toyota Camry in-line engine
Spark plugs Toyota Camry v2.4
Ignition spark plugs Toyota 9091901210
For Toyota Camry 40 with a 2.4 liter 2AZ-FE engine, spark plugs with article number 9091901210 . Their average price is 650 rubles. Manufacturer: Denso, Japan. A direct analogue of the same part has the number - SK20R11 , price - 470 rubles. In fact, these are one and the same part, since these are the spark plugs that are in branded Toyota boxes. Also found under article number 9008091180 . Price - 700 rub. They differ from the first ones in the country of origin – the USA. Otherwise, both boxes contain identical spark plugs. Some Toyota Camry v40 2.4 VVTi cars may have NGK 4589 ( IFR6T-11 ) spark plugs from the factory, the price of which is 440 rubles. Spark plugs from NGK are also original, but are much less common than spark plugs from Denso.
SK20R11 spark plugs from Denso have many positive reviews from Toyota Camry v40 owners, so it is preferable to install them.
It is worth remembering that the original Toyota 9091901210 (manufactured by Denso) have many fakes on the market. Distinctive features of a counterfeit part:
- there is no solder on the side electrode, which in the original spark plug is located opposite the central electrode;
- the electrode itself is slightly thinner and the insulator is shorter;
- The difference is in the font on the details. The font style on the originals is perforated, but on the fake the usual inscription is in bold.
Characteristics of the spark plug for Toyota Camry v40 2.4
| Thread length | Thread diameter | Key size | Gap | Heat number | Center electrode material |
| 19 mm | 14 mm | 16 | 1.1 mm | 20 | iridium |
When choosing an analogue of the original spark plugs for the Toyota Camry 2.4, it is worth remembering that this engine (2AZ-FE) is considered “cold”, and spark plugs with a low heat rating (“hot”) will not suit it. The optimal number for this parameter is 20, like the original, or close to this value.
The most popular replacements among Camry 40 owners with a 2AZ-FE engine:
- IK20TT . Manufacturer: Denso, Japan. Price – 540 rub. It is worth saying that this model is the most popular among Camry 40 owners, even compared to the original. Positioned as an improved version of the original SK20R11 . Also a distinctive feature of this model is Denso’s proprietary Twin Tip technology. Its main advantages over standard spark plugs are a slightly increased service life, reduced emissions into the atmosphere, and a reduction in power losses;
- 0242240649. Manufacturer: Bosch, Germany. Price - 350 rub. In terms of its characteristics, this model is almost identical to the original spark plug. The advantage is that the cost is slightly lower, as well as a lower percentage of fakes.
Spark plug Denso IK20TT
Spark plug Bosch 0242240649
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How to spot a fake
In order not to run into a fake, you should carefully inspect the candles. First, evaluate the quality of the packaging, although counterfeits often have high-quality packaging. The only thing that distinguishes originals from fakes is special security codes that need to be looked at for each manufacturer separately.
Workmanship.
The tip should be ideally shaped, have a small depression at the top, without distortion, and tightly screwed. The inscription on the ceramic part of the candle is without sagging or drips. The metal part is free of nicks, scratches and sharp edges.
These are points that are worth checking when purchasing SZ from any manufacturer.
Camry won't start even though the starter turns
Experts recommend checking all relays and fuses in case of such a breakdown. It would also be useful to ring the wires, especially if you have the appropriate device. After all, the Camry may not start not because of the fuses, but because of the wiring that goes to them. On Camry 40 this is a common problem, look for the problem in the wires going to the fuse box under the hood.
If the suspicions are confirmed, then there are 2 ways to fix the problem. First, when the connections are oxidized, they need to be cleaned. The second, more acceptable option is to replace the wiring entirely or in sections. If the fuses are blown, they also need to be replaced.
In addition, the Camry 40 will not start:
- when the fuel level is insufficient;
- if the fuel pump and fuel pump relay are faulty;
- due to lack of spark;
- if there is a blockage in the fuel supply system.
The fuel pump in the Camry XV40 is located under the rear seats.
Most of the problems are related to fuel. If there is insufficient pressure in the fuel supply system, it does not enter the engine. The power unit will neither work nor start on an empty stomach. Poor fuel supply may be caused by a faulty fuel pump. Sometimes a slight blockage of this mechanism leads to problems with starting the engine. The operation of the fuel pump can be heard, if there is no characteristic noise, the reason is in the fuel pump.
When everything is fine with the fuel supply, it is recommended to check the spark plugs. These parts are responsible for the presence of a spark for combustion of the mixture in the internal combustion engine. The spark plug does not want to work due to contamination with low-grade fuels and lubricants or wear.
It is not possible to visually determine the performance of spark plugs, unless we talk about extreme wear.
However, the indicated malfunctions are not all the reasons why the Toyota Camry does not start. In addition to the battery, starter, and generator, there are a lot of components and mechanisms that affect starting the engine.
Diagnosis of the condition of spark plugs by appearance
The normal color of a candle is brown or yellowish. Soot deposits on the spark plugs may indicate late ignition. It is recommended to check the air filter and temperature sensor.
If there are oil deposits on the spark plug, then repair of the cylinder head is required. The appearance of plaque on the skirt usually leads to a drop in engine power and increased gas mileage. If the car owner discovers rust on newly installed spark plugs, it is recommended to change the refueling location. Corrosion usually occurs from poor quality fuel.
Major parts malfunctions
Replacement of spark plugs is required when they break or fail. Every 10,000 km that the car has traveled, mandatory inspection measures are carried out. Main faults:
- Coal type deposits. If there is soot, this indicates a malfunction in the fuel mixture or increased spark intensity. The engine operation loses its stable mode and rhythm, so it is worth checking the air cleaner.
- Oiling. If this phenomenon is observed in a Toyota4 car, signs include wear of the caps and oil getting into the chamber. The solution is mechanical restoration and manual replacement of spark plugs.
- Ash formation. If this tendency is observed in a 2.4 engine, soft deposits usually form on the electrodes. The source is oil additives.
- Overheating of spark plugs implies the formation of erosion on the electrodes and the absence of deposits and precipitation. During these influences, the lifespan of the element is shortened.
- Wear of the product assumes that the fluids are of normal color, but the engine loses its ability to operate stable in wet and cold weather conditions.
- Early ignition can be another cause of problems in the unit. A noticeable melting of the electrodes occurs, and the insulator becomes white. Foreign particles can make the situation worse. It is worth checking the glow number of the elements. They must work uninterruptedly, even if the voltage reaches 40 - 45,000 Volts;
- Detonation is another factor that interferes with the normal operation of the device. In this case, chips and cracks in the insulators may be observed. The pistons are usually damaged.
The first experience of identifying problems may not lead to the desired result, but after some time it will be possible to gain experience.
Diagnosis of the condition of spark plugs by appearance
The normal color of a candle is brown or yellowish. Soot deposits on the spark plugs may indicate late ignition. It is recommended to check the air filter and temperature sensor.
If there are oil deposits on the spark plug, then repair of the cylinder head is required. The appearance of plaque on the skirt usually leads to a drop in engine power and increased gas mileage. If the car owner discovers rust on newly installed spark plugs, it is recommended to change the refueling location. Corrosion usually occurs from poor quality fuel.
Low battery
When your Camry won't start, the first thing you should do is check the working condition of the battery. For these purposes, a multimeter is used - a device that will help measure battery voltage. Normal readings should be at least 12.0 Volts. But if the car has been sitting for a week, then due to current losses this figure decreases.
Operating conditions stipulate that if the Toyota Camry battery voltage is less than 11.7, then there may be problems starting the engine. At such indicators, it is recommended to recharge the battery.
If the Toyota has been parked for one night in cold weather, then it would be a good idea to check the terminals for oxidation and clean them if necessary. The ground wire requires close attention.
When preparing the car for the winter, you need to check the condition of the wiring and connections, since this affects the smooth operation of many parts and components.
But sometimes recharging the battery does not help and the voltage is not enough to start the engine after several hours. When the internal combustion engine is running, the battery receives current from the generator for the full functioning of the electronics. But this device also has its own margin of “strength”. For incorrect operation of the generator - the cause of undercharging of the battery - a minor breakdown is enough.
If the Camry modification does not have an on-board computer that signals problems with this device, then you will have to visit a service center to check it. It is impossible to leave the current generator faulty, since in the future it can provoke more serious breakdowns.
Reasons for replacing spark plugs
Replacement must be carried out according to the maintenance interval specified by the manufacturer. If symptoms of ignition of the fuel-air mixture occur, a new set of spark plugs must be installed. Failure to replace in a timely manner can lead to the following problems:
- engine tripping and reduction in power;
- increased fuel consumption;
- reduction in catalyst life and clogging;
- difficult engine starting, especially noticeable in the cold season;
- loss of car dynamics and inability to drive sportily.
How to change ignition elements in a Toyota Camry
This process will not be particularly difficult, since you can do a complex of all the activities yourself.
Tools
- Head 10, key.
- The spark plugs included are new.
- Dielectric type grease.
- Thread lubricant.
The order of procedures
Spark plugs in Toyota Camry v50 2.5 are replaced according to this scheme.
- Removing the plastic motor cover, disconnecting from the clips.
- Blow out the top area near the coils (this will prevent debris from forming inside the cylinders).
- Disconnecting the wire plug, carrying out work to unscrew the fastening using a key 10.
Replacement of elements must be carried out one by one. It is necessary to adhere to a strict sequence of operations.
- performing coil removal;
- replacement of a part;
- installation and assembly of the coil;
- attaching a chip to a place;
- complete tightening of the bolt.
Then the same set of measures is done with the next set of “coil-candle”. This procedure eliminates the risk of confusion.
A little history
The Camry 40 went on sale in 2006. For the first two years, Japanese-assembled cars were supplied to the Russian market. Since the end of 2007, local assembly has been established. There is no difference in quality. But the suspension is adapted to our roads and the ground clearance is slightly increased. In 2009, the model was restyled:
- changed the radiator grille and front bumper;
- added direction indicators to the side mirrors;
- we did a little work on the interior and added a touch screen;
- The radio was paired with bluetooth, and a “hands-free” system appeared.
The philosophy of creating a car is a large and comfortable sedan for little money (like the Ford Mondeo 4). From this, some disadvantages of the Camry XV40 emerge, which you can put up with or eliminate yourself. For example, the standard sound insulation is rather weak and the finishing materials are not of very high quality.
Reasons for replacing spark plugs
Replacement must be carried out according to the maintenance interval specified by the manufacturer. If symptoms of ignition of the fuel-air mixture occur, a new set of spark plugs must be installed. Failure to replace in a timely manner can lead to the following problems:
- engine tripping and reduction in power,
- increased fuel consumption,
- reduction in catalyst life and its clogging,
- Difficulty starting the engine, especially noticeable in the cold season,
- loss of car dynamics and inability to drive sportily.
