![]() If the decline in efficiency is accompanied by the vehicle pulling to one side, the brake system should be inspected immediately. In addition, any brake issue can make the vehicle dangerous to drive. Stuck Brake Caliper: A stuck caliper on a disc brake or a stuck shoe on a drum brake can lead to a serious decline in gas mileage. Fuel filters need to be replaced periodically. An improperly welded joint in one or both of the front lower control arms may break, resulting in the attached front wheel to toe outward, impacting the. The fuel filter screens out contaminants in the fuel, and over time it will become clogged. If this issue is not addressed it will lead to a rough, idle, sputtering and stalling.Ĭlogged Fuel Filter: A clogged fuel filter will also cause problems with gas mileage. This will lead to a decline in gas mileage. A bad fuel pump can lead to a rough running engine because it is not getting enough fuel. The fuel pump can become clogged or malfunction. The fuel pump pulls fuel from the gas tank to the fuel injectors. Cabin air filter captures most of the dirt or other airborne particles, but some escape and fall on to the evaporator. Dirty evaporator can also be the reason for AC problems on your Chevy Trax. Checking the tire pressure and have the alignment checked on regular basis can help prevent this problem.ĭefective Fuel Pump: Fuel delivery issues can drastically affect fuel efficiency. Once the leak has been found, this must be closed again by replacing the respective component. Sensor Not Working With use and time, the sensor’s sensitivity may decrease. Misaligned Tires: Tires that are low or out of alignment can lead to a drop in fuel efficiency. The reason is due to the following troubles: The Airbag Light Stays On If the airbag light is on continuously while the engine is running, it is a warning to the vehicle owner that the airbag system is faulty. It can also be an indicator of a much more serious issue. A dirty airflow sensor will degrade fuel efficiently and lead to a rough idle and even stalling as the problem progresses. Poor gas mileage, especially a sudden drop in fuel efficiency, can be blamed on a number of issues. It delivers that information to the vehicle's computer, which crunches the numbers and then delivers the proper amount of fuel to the air in the vehicle. Malfunctioning Mass Airflow Sensor: A mass airflow sensor detects the amount of air coming into the fuel injection system. This can lead to a lack of power as well as a big decline in fuel efficiency. If they are dirty or working incorrectly, it can cause the engine to misfire, leading to poor engine performance. As it progresses, the injectors may have to be replaced.īad or Dirty Spark Plugs: Spark plugs ignite the fuel in the combustion chamber. If caught early, simply cleaning the injectors can solve the problem. ![]() This can lead to a drop in fuel efficiency as well as slow acceleration and the car not having enough power. Over time the fuel injector system can become clogged. It can also lead to failed emission tests and a rough idle.ĭirty Fuel Injectors: Fuel injectors spray fuel into the cylinders where it is mixed with air and ignited. If the sensor is dirty or failing it can lead to a drop in miles per gallon. The data is used by the vehicle computer to adjust the amount of fuel entering the engine. Find out more about our advertising opportunities.Service type Car is getting worse gas mileage Inspectionĭirty Oxygen Sensor: An oxygen sensor measures exactly how rich or lean the exhaust gases are when they leave the combustion chamber. Advertise Advertising on is well-targeted, has unique benefits, and is highly successful. Looking for something lighter? Read our funny complaints to see people who found humor in a bad situation. Vehicle Problems Find out what cars to avoid, view the latest problem trends, or keep up-to-date with the most recently reported problems. ![]() Contact us with any comments or concerns. Car Problem Resources Around the Site Information Find out more about us in the press or read stories from drivers who praise our work. ![]() The complaints are organized into groups with data published by vehicle, vehicle component, and specific problem. ® is an online automotive complaint resource that uses graphs to show automotive defect patterns, based on complaint data submitted by visitors to the site.
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