Oldsmobile Alero cabin and engine air filter location issue and underbody rust affecting inspection on Oldsmobile Alero

Some Oldsmobile Alero owners report experiencing issues related to the absence of factory-installed cabin air filters, particularly in the 2003 GL 2.2L and 2000 GL 3.4L models. This lack of a cabin air filter may lead to reduced air quality within the vehicle. Additionally, when replacing the engine air filter, owners may encounter challenges, as the process requires loosening screws on the air box lid, which can be cumbersome. Furthermore, some owners express concerns about underbody rust affecting vehicle inspections, particularly regarding the exhaust system and frame integrity. Signs such as exhaust fume odors and high engine idle speeds may indicate underlying issues that necessitate thorough inspection. It is crucial for owners to address these potential problems to ensure their vehicle's safety and performance.