Car Ignition Coil Fault Phenomenon And Maintenance Tips

The ignition coil, as the name implies, is the most critical part of the engine's work, powering the ignition step, igniting the compression mixture. The most obvious feature of ignition coil failure is the lack of cylinders, and there may be obvious sudden sounds at idle, which are most obvious on the exhaust pipe with your hands, accompanied by strong engine shake. When the car is driving, the higher the gear, the more obvious the frustration of the car when giving oil, the smooth oil is slightly better, the case of fierce oil is the most experienced, and even has the feeling of stalling, of course, the car itself obviously knows its own problems. Therefore, convenient car drivers, you can check the fault code in the trip computer.

The most common damage of the ignition coil is its own rupture, regardless of each part, because of the rupture and leakage, so it leads to insufficient ignition capacity or lack of ignition ability.

Cracked ignition coil
Old drivers with strong hands-on ability can generally choose to replace them themselves. The interface of the ignition coil is snap-type, press and pull out the interface, and then unscrew the fixing screw of the ignition coil. However, the ignition coil of most models has a rubber pad at the bottom to tightly wrap the spark plug, so it may be a laborious process to pull out the ignition coil. Female car owners are not recommended to try, but can seek the help of male compatriots to avoid injury.

Common four-cylinder in-line engine valve cover ignition coil position
The two coils were removed, leaving two coils. Note here: To replace the ignition coil, you do not need to remove the entire valve chamber cover, because the valve cover is sealed, disassemble and then install, the sealing strip will definitely not achieve the best effect, and it is very likely to lose the sealing effect.

Then there is a very troublesome situation. What should I do if the fixing screw of the ignition coil slips? At this time, you may need to consider yourself unlucky, because in this case, basically all the valve cover must be replaced together. However, valve house covers are generally expensive in repair shops. If not? You can't replace the coil, and you don't know if the one you can't remove is good or bad.

If you want to do it yourself, you can do it, but the premise is to say the main point: pay attention! Do not heat the car to remove the engine cover, the oil temperature is very high, it is easy to burn, and the ignition coil removed by the hot car is also hot, safety first.

Buying spare parts yourself is definitely more than half the price you will give you by the repair manufacturer. So, get your hands dirty. The valve cover of different engines is not the same, not only in shape, but also in structure. So there is only one thing to pay attention to here, that is, how to disassemble and how to install. As a special reminder, the screws are well protected, and if it falls into the engine compartment, it is a super troublesome thing. Of course, don't forget to buy the screws that hold the coil. Because there are those that cannot be removed, the corresponding fixing screws are missing.

Removed valve covers
Install the new cover as it is, tighten the screws, and turn the screws one by one. It is not directly tightened one by one, they are all screwed into place first. Tighten them one by one and then do it again. Even if you're done. Install the ignition coil, tighten, wire, ignite a wave, the problem is solved.

I was asked, how often is the ignition coil changed? There is actually no maintenance cycle for this. Some cars break down in 5-60,000 km. Some cars are more than 100,000 kilometers to break. The maintenance cycle is to replace it if it is broken, and continue to use it if it is not broken. There is no need to deliberately care about this issue.

At the same time, it should be noted that not all cars have ignition coils, simple such as diesel cars do not, many old cars may be a high-voltage distributor, of course, high-voltage distributor failure and ignition coil is the same.