06-24-2021, 05:22 AM
There's nothing electrical that would or should be making the noise. I would take the seat off, pull the rear tank mounting bolt out, and check for a kink in the small hose that vents the gas tank.
Pressure built up inside the tank from heating and cooling should be going out through the hose to the evaporative emissions canister. The canister is charcoal filled, traps the vapors.
If somehow, the tank was overfilled well above the bar, fuel may saturate the canister to the point of clogging it. Open the gas cap to see if you hear a pressure release or a vacuum sound.
The other possibility is that the fuel pressure in the lines could be bleeding out through a sticking injector, or through the fuel pump's bypass valve. If you happen to be around when it's making the noise, open the gas cap to see if it gets louder. The evap solenoid only activates when the engine is running.
The line should hold 50psi for at least a couple hours, or maybe all night. When you cycle the key on, note how long it takes to build pressure back up compared to when you have just shut the key off, then back on.
Pressure built up inside the tank from heating and cooling should be going out through the hose to the evaporative emissions canister. The canister is charcoal filled, traps the vapors.
If somehow, the tank was overfilled well above the bar, fuel may saturate the canister to the point of clogging it. Open the gas cap to see if you hear a pressure release or a vacuum sound.
The other possibility is that the fuel pressure in the lines could be bleeding out through a sticking injector, or through the fuel pump's bypass valve. If you happen to be around when it's making the noise, open the gas cap to see if it gets louder. The evap solenoid only activates when the engine is running.
The line should hold 50psi for at least a couple hours, or maybe all night. When you cycle the key on, note how long it takes to build pressure back up compared to when you have just shut the key off, then back on.