Where is the leak from? The fuel filler? The fuel tank? A fuel line? Does the leak occur only when the engine is running? Does the leak only occur when the vehicle is parked on an inclined surface?
rust spots, bad seals, cracked pipe, anything that would make a household pipe leak, can make a filler neck leak. Try wrapping the spot with duct tape, it works for me.
the fuel filler neck is most likely ruted and has a hole in it
I believe there is a recall on the filler neck. It corrodes and allows fuel to leak. Marty
Filler neck to the gas tank
A vapor leak in the fuel system.A vapor leak in the fuel system.
To replace the fuel filler neck on a 1997 Toyota Previa, begin by ensuring the vehicle is safely elevated and supported. Remove the rear wheel on the side of the fuel filler neck for better access. Disconnect the fuel filler neck from the fuel tank and any attached hoses, then remove the old neck from the vehicle. Install the new fuel filler neck by reversing the removal process, ensuring all connections are secure and leak-free before reassembling the wheel.
An evaporative (EVAP) leak typically indicates a problem within the vehicle's emissions control system, which is designed to prevent fuel vapors from escaping into the atmosphere. This system is closely linked to the fuel system, as it captures and recycles fuel vapors generated in the fuel tank. If there is a leak, it can lead to decreased fuel efficiency, increased emissions, and potential performance issues, as the fuel system may struggle to maintain the proper pressure and vapor management. Properly addressing EVAP leaks is essential for optimal vehicle operation and compliance with emissions standards.
.if leaking from tank area it can only be, a leak from the tank, a leak from a fuel line or fuel line fitting,or a leak from the filler tube to the tank. ask your mechanic why can he NOT find the leak when obviously there is a leak.maybe you need to go to a better mechanic
To find a leak in the fuel vapor system, start by visually inspecting all hoses, connections, and components for signs of wear, cracks, or loose fittings. Use a smoke machine or a pressurized system to introduce smoke or air, allowing you to detect escaping vapors at any weak points. Additionally, a fuel vapor leak detection tool can help identify leaks by measuring hydrocarbon levels in the atmosphere around the system. Always ensure safety precautions are taken, as fuel vapors can be hazardous.
You might have a fuel injector leak that causes the AC in your Dodge Intrepid to smell like gasoline. When the AC pulls air from the outside, it might be pulling some gas vapors in as well.
Engine surging is usually due to insufficient fuel supply. Probable causes could be an air leak in the fuel system, or possibly a dirty fuel filter, causing fuel restriction.