26
Nov
Automakers may or may not specify a recommended replacement interval for spark plug wires but a good set will typically last 60000 miles. Even today low quality spark plugs or those made with a less durable material such as copper should be replaced every 20000 to 30000 miles.
Even today low quality spark plugs or those made with a less durable material such as copper should be replaced every 20000 to 30000 miles.
How often to replace spark plug wires. High performance doesnt always mean a long lifespan and some types of high performing spark plug wires may need relatively frequent replacement every 30000 to 40000 miles. And that can cost upwards of 1200 to replace. So it makes no sense to try to squeeze more life out of old spark plug wires.
The simple answer to the question of how often to change spark plugs is at the factory recommended service interval. The exact recommended mileage between such service can differ to an extent from one manufacturer to the next and varies among different types of spark plugs. If the insulation is compromised or theres an internal break youll need to replace your wires even if its not yet time.
You can typically get 80000 miles on them before they need replacing. But if you notice any of these symptoms its time to get your spark plugs checked out with an engine tune-up. You should change your spark plugs every 30000 miles or if you notice indications that the wires need to be replaced earlier such as cracks or nicks in your spark plugs wire insulation andor oil-soaked areas.
When to replace spark plugs If you check your owners manual youll probably find that your automaker recommends you replace your spark plugs roughly every 30000 miles. Conventional spark plugs need to be replaced every 30000-50000 miles. Whether you do a complete tune-up or only change the spark plugs spark plug wires also known as ignition cables should always be checked first.
This is necessary due to the aging of the spark plug wires from exposure to extreme temperatures hot and cold engine chemicals oil grease coolant etc and electrical stresses. Iridium plugs last up to 110000 miles longer than conventional spark plugs. Thats why it pays to replace your spark plug wires before they wear out.
We recommend changing them during spark plug changes whenever your owners manual recommends usually between 60000 and 100000 miles. Here well show you which materials and tools youll need and all the steps required to do a quality job of your own. Not all spark plugs are rated for 100000 miles.
In fact some carmakers recommend replacement at 30000-mile intervals. Always follow the spark plug service intervals shown in your owners manual to figure out when to replace spark plugs. Automakers may or may not specify a recommended replacement interval for spark plug wires but a good set will typically last 60000 miles.
However that may not apply in all circumstances. One of the most common reasons for expensive catalytic converter failure is unburned fuel going out the exhaust. 30000 miles has been accepted for years as the most common replacement interval.
Even today low quality spark plugs or those made with a less durable material such as copper should be replaced every 20000 to 30000 miles. Thats why most vehicle manufacturers recommend replacing the spark plug wires every 30000 miles. If your spark plug wires are worn out or damaged dont wait.
It could cost you much more later. You Can Most Likely Do it Yourself. Good quality spark plug wires can easily last for 60000 to 70000 miles of driving and youll want to replace them before they start causing your trouble like misfiring or rough driving as this can lead to catalytic converter damage.
You should replace the spark plug wires when you get new spark plugs. With standard spark plugs that might be every 30000-40000 miles or so. If your vehicle uses extended-life spark plugs you.
Todays automakers claim the spark plugs in your new car or truck may not have to be replaced for up to 100000 miles. However that doesnt mean those plugs will be operating a peak efficiency at that distance or even half that mileage. It is always prudent to rely upon your judgment as the owner rather than blindly follow a manufacturers hype.