When to Change Spark Plugs in 5.3 Vortec?
Changing spark plugs in a 5.3 Vortec engine typically involves looking for signs such as engine misfires, poor fuel economy, and difficulty starting the engine. It’s generally recommended to check your vehicle’s owner’s manual for the manufacturer’s specific interval, but a common guideline is to replace spark plugs every 30,000 to 100,000 miles, depending on … Read more