On my 2014 Chevrolet Sonic, I recently finished replacing the spark plugs as well as the coil bar. The engine turns over, but it won’t rev any higher than 3,000 times per minute. Do I have something wrong with the way I did it?
The fact that this occurred right after you worked on the car yourself lends credence to the idea that “yes,” is the correct answer.
In point of fact, it’s possible that it wasn’t your fault, but my assumption is that there’s something wrong with the spark plugs. If the spark plugs are unable to produce a spark that is sufficiently large, the engine may function normally at lower speeds, but it may fail when you attempt to crank it up and require a larger spark.
You must be familiar with the concept of spark plug spacing, right? The manufacturer is responsible for determining the appropriate amount of distance that exists between the spark plug’s two electrodes. The distance the spark will travel and the size of the spark it will produce are both determined by this factor.
The majority of spark plug gaps fall somewhere within the range of 1 millimeter to 1 millimeter and a half. When we install spark plugs, we carefully double check the spacing to make sure they are correct. Why? However, there are some that work perfectly right out of the box. But some don’t. Who can explain this? Perhaps during the process of unloading the ship in Long Beach someone carelessly tossed a box containing some of them overboard. Or perhaps you were careless and let it fall to the ground in the garage.
The distance between them is of utmost significance.
If the space between them is not large enough, there won’t be enough room for the spark to leap.
As a result, when you rev up the engine, the spark will not be large enough or hot enough to completely ignite all of the gasoline and air that is entering the cylinder.
On the other hand, if the spark plug spacing are excessively large, the spark may be lost when the engine is traveling at high speeds.
The higher the speed at which the engine is running, the greater the volume of air and the quantity of turbulence that are present in the cylinder. And if the spacing is too large, the spark will be extinguished as soon as the speed reaches a certain threshold.
A gapping tool can be purchased for less than ten dollars at the auto parts store in your neighborhood. After that, you’ll not only have a car that runs, but you’ll also have a new hobby.
However, before you even consider doing that, you need double check to ensure that you have purchased the appropriate plugs for your vehicle. Using the incorrect plugs is another possible source of this issue.
And if there’s any doubt about whether or not you have the appropriate plugs, all you have to do is head over to the parts department at your local Chevy dealership and ask them to sell you four new plugs. At the very least, this will ensure that you are beginning with the appropriate components.