Signs Of Bad Spark Plugs

By Author: car services in Reading
Total Articles: 265
Comment this article

Search for car service near me and book an appointment to fix any issues. Read on to find out more about spark plugs and what the common signs of faulty spark plugs are.

What is a spark plug?
The purpose of spark plugs is to deliver an electrical signal from the ignition coil at a predetermined time in order to ignite the mixture of air and fuel inside the combustion chamber. Good spark plugs will effectively burn fuel, but poor or faulty spark plugs will cause the engine to not start at all. Search MOT history check to see if your vehicle has had problems previously with spark plugs.

Signs that your spark plugs are bad.

Trouble starting your car
The spark that powers your engine is more difficult to produce with old, worn-out spark plugs. Spark plugs or spark plug wire damage may be the cause of your car stalling when you try to start it.

Car is not accelerating quickly
Spark plug wear can be the cause of your car not responding as quickly as it usually does, especially ...
... when you're trying to accelerate. No one enjoys driving a slow vehicle, so it might be time to have them replaced.

When the engine check light comes on
Coil packs, worn or failing spark plugs, or damaged spark plug wires can cause your check engine light to illuminate. The check engine light turning on or even flashing should be the most evident sign that a plug is about to break as suggested by garages in Reading.

Your check engine light can turn on as a result and your engine may misfire. A flashing engine light could indicate the presence of potentially disastrous misfires.

Rough Idle
The unburned fuel could deceive the O2 sensors when a misfire occurs as a result of defective spark plugs. The fuel mixture will then be regulated by the O2 sensor, and you can end up with a lean mixture. Rough idling may result from this. There is a good probability that you have failed spark plugs if your idling is quite rough, your vehicle sounds like it might be a tractor, and things are happening normally. Check MOT history to see if such has been a problem previously. If so then it is the spark plugs which need changing.

Now you know the signs of bad spark plugs, it is important to get them changed as your car will not be able to run properly without them