Fuel pump inertia ( shut off ) switch , blown fuse , bad electric fuel pump ,
wiring problem
Fuel pump relay.
what els wyuld keep a fuel pump fromcoming on in a 2005 chevy malibu besides the relay
No You Will Not Be Able To Do This. The Relay Is Required To Make Your Electrical System Work For The Fuel Pump. The Relay Is A Switch Unto Its Self. It Shuts The On And Off As Required By The Fuel System. Even If You Were To Bypass It. The Pump Would Run All The Time. Suggest You Install A New Relay
The fuel pump relay, is controlled by the EEC module, which provides power to fuel pump under various operating conditions. When ignition is in "OFF" position, EEC power and fuel pump relay contacts are open. After engine starts, power to fuel pump is supplied through fuel pump relay. EEC module senses engine speed and shuts off fuel pump relay when engine stops.
The cut out relay is used to energize a fuel pump. It then shuts down, until it gets impulses from the spark plugs.
A new Fuel pump relay fixed this problem for me.
bad fuel pump
the f-150 fuel system shuts off and also does not restart sometimes , i changed the filter and fuel pump and problem still exist. the f-150 fuel system shuts off and also does not restart sometimes , i changed the filter and fuel pump and problem still exist.
The vehicle may shut off during use if the fuel pump relay goes bad. But it could go bad and the relay shuts off, or the relay gets stuck open (which does not happen often). if the relay gets stuck open then most likely the fuel pump will not shut off (unless the relay is removed) which is dangerous. Also it all completely depends on the wiring of the car. Also, if the fuel pump relay goes bad and shuts off, the vehicle may not start back up until it is replaced.
Could be the fuel pump or the fuel pump relay. Have a pressure test done on the fuel line and monitor it. If you lose fuel pressure when you step on the gas, then your fuel pump is likely going out.
Yes it can, But GM. Had a problem with the connection at the fuel pump on the top of the fuel tank. That wiring harness / connector shorts out at times and shuts pump off.CHECK wiring at the tank, Replace if needed.
A 2005 PT Cruiser does have a fuel pump relay. They have a fuel pump relay rather than a fuel pump switch. The fuel pump relay is located in the fuse box.