When to change spark plugs for Ford Focus 3
If the spark plugs are malfunctioning, the following symptoms may occur:- difficulty starting a cold engine;
- the presence of "triple", that is, during engine operation, twitching is noted;
- increased fuel consumption;
- inadequacy of the engine response to pressing the accelerator pedal;
- "floating" turns and a number of others.
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Spark plugs, on average, last about 20,000 - 30,000 km, after which they need to be changed. If Ford Focus 3 refuel quality fuel and do not give him excessive loads, then they will work the entire period without problems. However, in the case when the motor began to function incorrectly, then you should not wait - their replacement is mandatory. In our article, we will talk about how to change candles correctly, when to do it, and what signs you should pay attention to.
In many ways, the service life of the candles depends on how the Ford Focus 3 was operated. For example, if you constantly drive in low gear and low revs when the motor receives an increased load, then the deposit will be much greater than with normal conditions. The quality of the fuel also affects, as mentioned above. If you take care of the Ford Focus and properly service it, then the candles can last up to 40,000 km, after which they will be replaced according to the regulations. Candle malfunction can be detected independently if Ford Focus started behaving differently than usual. The main signs, after the appearance of which it is worth changing the candles, are:
- Increased fuel consumption in all driving modes.
- Engine stalls for Idling.
- The motor does not start well (the starter works, but the engine does not start).
- The motor troit and runs unstable.
- The dynamics of the car deteriorates, it accelerates weakly and slowly gains momentum.
Preparatory work
If the symptoms described above appear on your Ford Focus 3, this means that you need to change the candles. If soot or cracks are found on ceramic parts, replacement will also be required. Periodically, it is necessary to check this part for breakdown using a special device. If this is ignored, more serious problem- the ignition coil will fail, and its replacement will cost much more (more than 5 times).
On the Ford Focus 3, the replacement of spark plugs should be done either on a cold engine or a little warm. The fact is that on a hot engine they should not get out. If this happens, then most likely there is some kind of problem with the thread of the cylinder head, which is made of light and not very durable metal and will need to be changed.
Before you start changing candles for Ford Focus, prepare all the tools that you may need in your work. It is also recommended to have special devices for determining the gap of candles. So, you will need the following tools:
- Candle key for 16 (you can choose any, but the quality options are keys 3122B or Hazet-900 / AKF);
- Pliers for unscrewing;
- Gap measuring device.
Among other things, you will, of course, need a set of 4 spark plugs. As for the specific choice, it is necessary to be guided by the manufacturer's recommendations and buy products from reputable companies.
So, the most correct option for the Ford Focus is to purchase a set of candles, check their clearance and adjust them one by one for further replacement. Once you get everything you need, you need to wait for the motor to cool completely and only then get to work. This is enough time to check the new spark plugs and determine the gap. To measure the gap, you need to use a special device.
Features of replacing candles
Let's get started on replacing the spark plugs. To do this, turn off the ignition and do the following:
- Remove the Ford Focus engine cover by unscrewing the mounting bolts.
- Remove the ignition coil connectors. This can be done by pulling the special staples up.
- We unscrew the bolts fixing the coils to the cylinder head and lift them up. It is also necessary to inspect the mounting location of the cylinder head and coil for damage to the seal. If necessary, change.
- We unscrew the candles with the key. This must be done carefully so as not to damage the ceramic case, using the special keys mentioned above.
- We check the new candle for the interelectrode distance. As a rule, manufacturers expose everything correctly, but if there is any discrepancy, it must be eliminated. To do this, bend the mass electrode by tapping it from the side. I repeat, it is strictly forbidden to lean on the central electrode. The edge of the thread can serve as a stop.
- Apply to carving special composition with a high copper content.
- We install the candle in the Ford Focus cylinder head and screw it in with our fingers, after which we fix it with a candle wrench. (To avoid mistightening, place a plastic tube or rubber hose over the shank to act as a hinge and align the spark plug with the socket without stripping the threads.)
As you may have already figured out, changing spark plugs is a fairly simple matter on a Ford Focus. It remains to connect the high voltage wires. Before doing this, they must be carefully examined. If everything is in order, then with a rotational movement we put the BB wires in place. We perform the same actions for each candle. When you learn how to do this, then there will be no problems and the process will not take much time. The last - stage - we install the Ford Focus engine cover and that's it, the replacement is over.
What spark plugs to put on the engine of your car - this question is of interest to many owners ford cars Focus 3, and more. Undoubtedly, currently in the market for the sale of spark plugs, unfortunately, there are companies manufacturing candles of undesirable quality. And most importantly, these candles, along with high-quality spark plugs, are sold at almost the same price. Therefore, below are the brands of spark plugs that are specified by the manufacturer and the brands of spark plugs that are installed instead.
What spark plugs are installed by Ford Focus 3 owners
Of course, that in almost any car engine you can find and put analogues of the original spark plugs specified in the documentation. Therefore, the following are spark plugs that can be supplied instead of the above. But remember that the manufacturer knowingly indicated the brands of spark plugs in the Owner's Manual.
OPEL: 1214013 (1214013)
CHAMPION: RES9PYP4 (RES9PYP4)
ACDELCO: 41-981 (41981)
NGK: ILTR5A-13G (ILTR5A13G)
NGK: PTR5A-10 (PTR5A10)
SPLITFIRE: SF534D (SF534D)
Bosch: HLR8STEX (HLR8STEX)
The need to replace spark plugs regularly arises on any car. On Ford Focus 3, the manufacturer recommends doing this approximately once a30 thousand km . If the car is installed iridium spark plugs , then they are changed one times in 100 thousand . However, when calculating the resource of spark plugs, we can hardly take into account all the factors that affect their operation. Therefore, if there are symptoms of engine malfunction due to wear of the candles before the specified period, then we will think about replacing.
Signs of bad spark plugs
Classic spark plug Before you need to replace the spark plugs, you should make sure that the problem is in them. The main indications for a change are an increase in fuel consumption and a deterioration in dynamics. This can easily be calculated from the growing fuel consumption, and the car will also begin to gain speed and speed more slowly. In addition, if the spark plugs fail, there are problems with starting the engine both cold and hot.
Spark on the electrodes of a conventional candle ... Another problem is that the engine starts to stall even at idle. Also, the engine will be, its operation will become unstable and interruptions will appear.
... and a spark on an iridium candle Yes, there can be any number of reasons for unstable engine operation - from bad gasoline and before failure in the ignition module. To make sure that it is the candles that are to blame, let's do an express diagnostic with our own hands:
- When working on idling engine, remove the coils from the candles one by one. At the same time, we monitor the operation of the engine. If, when the coil of a certain spark plug is removed, the nature of the engine operation does not change (does not stall, does not vibrate either), the spark plug does not work. At least at idle. In this case, we change the candle or clean it.
- Spark check. We unscrew the candle, put on the coil with high voltage wire and put it on the head of the block. We ask the assistant to scroll the engine with the starter for several seconds, if the spark on the spark plug electrodes is dull, bluish and sluggish, it must be replaced.
- Candle tester. A handy thing, made in the form of a pistol, into the barrel of which the test candle is inserted. We press the trigger, if there is a spark, the candle is working at 60%. The low probability of the reliability of such checks is due to the fact that the candle operates in the combustion chamber under completely different conditions - a different pressure, temperature.
On this, the garage methods for checking the candles have exhausted themselves.
Visual inspection of spark plugs
A more accurate check is made by visual inspection. To understand how to check Focus 3 candles, you do not need special knowledge. We unscrew the candles from the wells in the block head and look carefully at the electrodes:
Choosing the right candles for the Ford Focus III
When we conducted a visual diagnosis and decided that the problem was in the candles, we will choose the right ones. Buy spark plugs for Ford Focus III You can find it at any auto parts store or auto market. The first thing we pay attention to is the geometric parameters, that is, the length of the threaded part, the diameter and method of planting the candle in the well.
Tapered and flat seat candles All this is indicated on the candle itself in the form of markings. Let's see what they write on an expensive candle Motorcraft, for example, CYFS12 Y1 :
- C determines the thread diameter, on all FF3 motors it is 14 mm, thread length - 25 mm;
- Y - cone type;
- F - landing cone;
- S - a resistor is installed;
- 1 - heat number (1-3 cold, 4-7 warm, 8-10 hot);
- 2 - engine power class;
- Y - central electrode with a diameter of 0.7 mm made of platinum, the side electrode is copper;
- 1 - marking of the side electrode.
All candles for engines of the third focus have the same parameters CYFS-12 and the characteristics of the side and central electrodes are the nuances that affect the price of candles and their life.
original candle FMC We select candles for the Ford Focus 3 engine
Several types of engines are installed on the third Focus, and each of them requires its own candles:
- 1.6L engine
.
Spark plugs installed from the factory CYFS12 VN4 - HR7MEV with catalog number 1787829 . Complete analogue - candles BOSCH - 0 242 236 633 (HR7 MEV) Russian production.
The official substitute for these candles is Mexican Motorcraft with catalog number 2050957 .
Candles for the second Focus HR8MEV can sometimes be used official dealers during maintenance, Catalogue number 1493001 . We do not recommend installing these spark plugs on a 1.6 engine.
CYFS12 YEC- iridium candle with a high resource (+100 thousand), catalog number 1680032 , analogue - ILTR6H-8G from NGK. Also suitable for two-liter EcoBoost, analogue - NGK 96870.
German HR8NPP30 from BOSCH, platinum electrode, their counterpart BOSCH - 0 242 229 739. - Engine2.0GDi.
Japanese iridium spark plugs NGK LTR6DI-8 (CYFS12 Y2), catalog number 5215216 . Clearance must be adjusted prior to installation.
NGK CYFS12 Y3 - LTR6AI-9, iridium, for old two-liter engines, article 5115895 .
NGK CYFS12 Y1 - LTR6BI-9, analogue NGK 96780, iridium, for new 2.0 liter engines.
BOSCH-HR7NI 332, can be installed on 1.6-liter engines, analogue BOSCH - 0 242 236 574 , Catalogue number 1686133 . - Engine 1.5T.
Japanese NGK 91924, rarely appear on sale, a substitute is more common HYFS 094YEC - ILZNAR8A-7G from NGK with article number 1802090 . - Engine 1.6T.
NGK 94769, NGK ILZTR6A-8G (CYFS13 YRC) , Ford part number 1685720 .
The price of candles for Ford Focus 2 depends not only on the brand, but also on the country of origin. For example, Russian Bosch candles are cheaper than German ones, and Japanese NGKs are often faked. Good candles Denso ITV22 IRIDIUM POWER , Denso ITV20TT,Champion RES9PYP4 Acdelco 41-981 . Candles are sold both individually and in a set of 4 pieces, the price is from $3 to $6 per piece.
Candle interchangeability table We change the candles ourselves
After we have decided which candles for the Ford Focus are better and bought them, we can proceed to the replacement. This procedure is one of the easiest, so even a novice driver can remove old candles and install new ones. Here is a detailed instruction on how to replace spark plugs with a Ford Focus using the Duratec two-liter engine as an example:
