How does a fuel shut off solenoid work?

How does a fuel shut off solenoid work?

How does a engine stop solenoid work? Before the engine starts, the solenoid is energized, which opens the flow of fuel to the engine. The engine then cranks and should start. When you stop the engine, the power to the stop solenoid is removed, which closes the fuel line and the engine then stops.

What are the symptoms of a bad fuel shut off solenoid?

Symptoms of a Bad or Failing Fuel Pump Shut Off Switch

• Engine suddenly stops while driving. One of the first symptoms of a potential issue with the fuel pump shut off switch is an engine that suddenly stalls while driving.
• Switch that trips for no reason.
• No start condition.

What does a carburetor shut off solenoid do?

When the engine is shut off, the solenoid cylinder falls to the bottom of the coil surrounding it, ending the power flow to the carburetor. With no power to continue mixing the fuel and air, the engine chokes and stops running altogether.

Why is my John Deere 4600 fuel shutoff solenoid not working?

He said that the 4600 Hydrostatics had been known to have a bit of trouble with the fuel shutoff solenoid. He suggested that I try to start the tractor and if it would not start to then use a hair dryer to warm the solenoid up until it was just warm to the touch.

What should I do about my JD 4500 fuel solenoid?

Jd 4500 LCUT 1999 vintage…….i have a intermittent fuel solenoid cut off issue… Do a search here on GTT and on TBN for “thermistor”. There is a small electrical device that controls the pull in coil, it’s usually not intermittent but it’s only a $5 part so it might be worth changing.

When to turn off fuel shutoff on John Deere tractor?

Seems the tractor suddenly decided to take February off! After much wailing and gnashing of teeth I have finally determined that the fuel shutoff solenoid sticks when it is very cold. Sure, it runs fine when it is above freezing. As soon as it snows, no go.

Why is my fuel shutoff solenoid not working?

Seems the solenoid is sticking when it gets below freezing and prevents the shutoff from releasing. No release, no fuel. So it looks like I get to replace the fuel shutoff solenoid. In 5 years of abuse this is the first instance of trouble (except dead battery) encountered.