5 Possible Malfunctions That Prompts Check Engine Light

The check engine light that pops on the dashboard means a trip to the automotive store is necessary. The check engine light is among the most confusing and frustrating facets of owning Second hand cars Toowoomba has to offer. The check engine light during a road-test session means there are transmission problems that need an immediate mechanical diagnosis. Here are 5 common malfunctions that cause the check engine light pop on.

Cracked or Loose Fuel Cap

A used truck with a loose or cracked fuel cap leaks out a lot of fuel vapors and this increases emissions and reduces fuel efficiency. If ignored, this problem eventually throws the entire fuel system off. It’s good to know that the check engine light may pop on even when the used truck isn’t feeling strange or jerky. If the check engine light fails to turn off after replacing or re-tightening the faulty fuel cap, a professional mechanical check up is crucial before you buy Second hand cars Toowoomba dealers has to offer.

Faulty Oxygen Sensor

Oxygen sensors usually monitor the amount of fuel burned and the unburned oxygen from the exhaust. A faulty oxygen sensor gives the truck’s computer system the wrong information and decreases mileage. Identifying the faulty sensor among the two to four oxygen sensors of a used truck requires an accurate code checker. Most oxygen sensors lose their sensor’s ability when oil ash covers them making them unable to sense when the fuel-oxygen mixture needs to be changed.

Defective Catalytic Convertor

Accumulation of exhaust gases indicates the truck’s catalytic converter is defective. The primary role of a catalytic converter is converting hazardous gases such as carbon monoxide and other harmful substances into harmless compounds. A used truck with a failing catalytic converter will not drive faster when the accelerator is pushed and its fuel mileage significantly decreases. Deteriorated spark plugs and broken oxygen sensors are the main culprits of a failing catalytic converter. Read more at len patti

Faulty Plug Wires or Spark Plugs

The spark plugs of the car ignite the fuel or air mixture inside the combustion chamber. The spark wires convey the sparks from the ignition coils to the spark plugs.  When either the plug wires or spark plugs are faulty, you may experience poor performance(engine missing, reduced power) and little fuel economy than when you buy new cars.

Worn Out Mass Airflow Sensor

The mass flow sensor of your car measures the quantity of air that enters the engine to know the amount of fuel your engine requires to run effectively. In case you do not replace worn out mass airflow sensor, it can lead to damage of the spark plugs, catalytic converter, or oxygen sensor.  You may also experience low performance and fuel economy after you buy used cars with this kind of a problem.

The check engine light tells you it’s time to inspect and fix certain transmission problems before you decide if buying new cars Toowoomba has today is a better option than buying used ones. Most second-hand trucks for sale show the check engine light when any of the above malfunctions develops. The more you dismiss the popping check engine light, the more the transmission problems aggravate. You do not have to invest your hard earned money into buying Second hand cars Toowoomba dealers offer if the car is problematic. Take time to find out the reason behind the engine light to avoid taking chances.

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