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You should replace your Chevy’s spark plugs every 30,000 miles to optimize engine performance. However, this interval isn’t set in stone, and you may need to visit your Chevy dealer for new plugs sooner than expected. The best move is to keep an eye out for signs that your old ignition plugs are wearing out and need to be replaced.
Signs You Need New Spark Plugs for Your Chevy
Trouble Starting the Engine
When the ignition plugs are excessively worn, they may have difficulty producing a strong spark when the engine is cold. This leads to hard starting, where the engine cranks slowly and even requires multiple attempts before igniting and starting. Replacing the worn-out plugs can help your engine start smoothly.
Poor Acceleration
As ignition plugs wear over time, they produce a weak spark that is unable to properly ignite the air-fuel mixture in the cylinders. As a result, your Chevy’s engine may feel sluggish or lack power during acceleration. Installing new plugs ensures there is a strong spark to ignite the air-fuel mixture and restore power to the engine.
Rough Idling
Worn plugs can cause your Chevy’s engine to run unevenly at idle. You may notice the engine shaking or vibrating more than normal when stopped at a light or in park. This occurs because the cylinders are misfiring due to the worn-out ignition plugs. You must replace the plugs to restore smooth idle operation.
Reduced Fuel Economy
When old plugs fail to deliver a strong spark to the engine, the air-fuel mixture does not fully combust in the cylinder. The incomplete burn leads to wasted fuel and reduced fuel efficiency. If you notice your car consuming more fuel than usual with unchanged driving habits, it may be time to get new ignition plugs.
Strange Sounds
If your ignition plugs are unable to deliver a strong spark, they may cause the cylinders to misfire. Misfiring cylinders can produce an unusual rattling or pinging sound. You may also hear detonation or knocking as the air-fuel mixture combusts erratically. You have to replace the plugs to keep things quiet under the hood.
Get OEM Ignition Plugs From Your Chevy Dealer
You should only use ignition plugs that are certified for your Chevy engine by the manufacturer. OEM plugs are available at your local dealership, and they are designed to the exact specifications of your Chevy’s model. This guarantees an optimal fit and compatibility with the rest of the ignition components.
Unlike aftermarket ignition plugs, OEM ones are durable and reliable. They won’t wear out prematurely, as is usually the case with aftermarket ones. They are also easy to source because you don’t need to compare plugs from different manufacturers. Simply visit the dealership, and our technicians will order and install factory ones for you.
New ignition plugs will keep your Chevy running smoothly, restore engine performance, and save you money on gas. If you notice the signs of trouble, visit Service GM Chevrolet Cadillac to get new OEM plugs for your Chevy.
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