Ignition Coils

Ignition Coils

Lately, we have seen an increase in “coils” needing to be replaced in vehicles.

So, what is a coil?

All modern petrol vehicles have an ignition coil of some description to provide spark to the spark plugs to ignite the fuel. Ignition coils are very common to fail in vehicles and when a coil begins to deteriorate or fail, you may notice that your vehicles fuel consumption increases, misfire occurs, or there is a loss of power.
Other indicators that a coil may need replacing include engine shaking, sputtering, or feeling like the vehicle is about to “stall” or “cut out”.
In some cases, the engine light may come on as well, indicating that your vehicle needs attention.
When you first start noticing these symptoms, it is important to come and see us as soon as possible.
Generally, we will first complete a computer diagnostic scan on your vehicle which may indicate to us if there is a failure and what it is. We can also test for coil failure by inspecting and testing each individual coil.

We generally recommend replacing all coils at the same time because more often than not, the other coils will start to fail soon after.
You can replace one at a time however, you may re encounter the same problem which may be more costly in the long run due to the added labour each time.
Coils are relatively cheap, and most vehicles coils are quickly accessible however, there are a few makes and models where they are a bit more complicated to get too, which in turn may increase the time and labour needed to spend replacing them.

Please Contact Us

Helensville Mechanical Services

09 420 8177

90 Mill Road, Helensville 0800