What to check for fumes inside 2003 Grand Vitara?

If you detect fumes inside a 2003 Grand Vitara, first check for any visible leaks under the hood or around the exhaust system, as these could indicate oil or coolant leaks. Inspect the cabin air filter and ventilation system for any blockages or mold, which can cause musty odors. Additionally, examine the fuel system for leaks, particularly around the fuel injectors and fuel lines. If the issue persists, it may be wise to have the vehicle inspected by a professional mechanic.