Bad fuel pump, loose fuel pump, loose baffle or foreign matter in the tank.
Yes Yes
Might be low octane gas. Try a tank of Premium and see if it helps.
can you elaborate? engine noise? stationary/moving? ticking, tapping or a definite knocking?
It is not common to hear a bubbling noise coming from you gas tank. It may be that your gas tank is too hot. You need to stop your vehicle and let a professional look at it.
The knocking noise is commonly called spark knock. The knock can be called by the engine timing not being set correctly, or using gas that has too low of an octane for the engine.
A bad connecting rod bearing can do this
Knocking is caused by preignition, where the heat in the cylinder causes the gas to ignite before the spark plug does. Try using a higher octane/grade gas and see if the noise goes away.
knocking noise
There are a number of reasons why your car may make noise when filled with over half tank gas. The main problem is caused by the fuel pump or the fuel injector.Ê
The fuel pump is engaged.
what would cause a knockings noise in my boat 3560- 2004 transmission when in idle goes away when you give it gas
NO. A knocking noise in the engine is a problem in the engine.