Vehicle Inspections & emission Tests

A rough idle in a vehicle is typically characterized by inconsistent engine performance when the vehicle is stationary and not under load, meaning there is no gas being applied. This irregular performance is typically due to spark plugs that are not firing correctly. An engine’s idle speed usually remains within the range of 600 to 1,200 Revolutions Per Minute (RPM). A well-tuned and properly functioning engine should maintain a consistent idle speed within this range. A rough idle, however, will see this speed fluctuate, causing the engine to run unevenly, which often leads to increased vibration and possibly other more serious engine problems if left unaddressed.

The common culprit behind thick smoke emanating from your car’s exhaust pipe is often an overly rich fuel-to-air ratio within your engine. This issue arises when the fuel injectors introduce an excessive amount of fuel into the system, or the intake valves fail to admit an ample volume of air. The primary causes of this imbalance can be a cracked or leaking fuel injector, a malfunctioning O2 sensor, or an air filter that is due for replacement. These components require timely maintenance and checks to ensure the optimal functioning of your vehicle and to prevent such problems.