* Fuel Injector Leak: A leaking fuel injector is a common culprit. Fuel injectors spray gasoline into the engine's cylinders, and a leak can allow fuel to drip onto hot engine components, vaporizing and entering the cabin.
* Fuel Line Leak: A crack or deterioration in a fuel line, especially near the engine or fuel tank, could be releasing gasoline. Rubber fuel lines age and become brittle over time.
* Fuel Pressure Regulator Leak: This component regulates fuel pressure in the system. A leak can cause fuel to escape.
* Carburetor Leak (if applicable): While less likely on a 1985 model (fuel injection was becoming more common), if your Volvo still has a carburetor, leaks in the carburetor or its associated lines could be the source.
* Fuel Tank Leak: Though less likely to directly smell *inside* the car initially, a leak in the fuel tank could eventually lead to fumes accumulating inside the car, especially if the car is parked in an enclosed space.
It's extremely dangerous to drive a car with a strong gasoline smell. Gasoline is highly flammable and can cause a serious fire or explosion. You should not drive the car until the leak is identified and repaired by a qualified mechanic. Proper ventilation is crucial – do not attempt to start it in an enclosed space.
To diagnose the problem properly, a mechanic will need to inspect the entire fuel system, likely using a pressure test to pinpoint the leak. Ignoring the problem is not an option due to the serious safety risks involved.