Posts Tagged: Spark Plug Replacement
Why Spark Plugs Fail and How to Avoid It
Spark Plug Failure: What Causes Spark Plugs to Fail and How to Prevent It Quick Summary Spark plugs are one of the hardest-working components in your engine. They must ignite the air-fuel mixture thousands of times per minute while enduring temperatures that can exceed 4,500°F inside the combustion chamber. When a spark plug fails, the result can be engine misfires, rough idle, poor fuel economy, hard starting, and even damage to the catalytic converter. As an ASE Master Technician, I’ve found that most spark plug failures aren’t caused by defective … Read More
How to Fix a Misfire: Step-by-Step Diagnosis Guide
What Causes an Engine Misfire? Quick Summary Most engine misfires are caused by worn spark plugs, failing ignition coils, vacuum leaks, fuel injector problems, or low compression. Diagnosing the problem in the correct order saves both time and money while preventing costly damage to the catalytic converter. The most common causes of engine misfires include: Few engine problems make drivers nervous faster than a rough-running engine. When a vehicle shakes at idle, hesitates under acceleration, or flashes the check engine light, it’s almost always trying to tell you something important. … Read More