Why does my car stop when I Turn Off the ignition?

Why does my car stop when I Turn Off the ignition?

There is small electrically operated valve near the fuel pump, which will close when the electrical supply to it is switched off. This, in turn, cuts off the fuel supply to the pump, and the engine stops. If the valve is worn, it will not shut, and the engine keeps running even when you have removed the key!

What happens when you remove the key from the ignition?

Car Engine Doesn’t Turn Off When Removing Key or Pressing STOP It is a strange problem to have a car that won’t turn off when you remove the key from the ignition or press the Engine Stop button. Your engine will continue to run even when you remove the key from the ignition because the fuel pump is not shutting off.

What to do if your car Wont Stop at idle?

Really though, the two best ways to fix this are either to install an idle stop solenoid, or use your vacuum advance hooked-up to manifold vacuum and then re-adjust your idle speed so it idles back down to a normal RPM.

Where is the ignition switch on a car?

Remove the bottom half of the plastic shroud surrounding the steering column. Locate the electrical connector to the ignition switch. It may be on the back of the ignition switch itself, or it might be at the end of an electrical pigtail from the switch and be located further down the steering column.

Why does my car not stop when I Turn Off the ignition?

It turns out that the engine was not being turned off by removing the power from the Ignition Relay, it was actually being starved of fuel by the Anti Run-On Valve. Since the British models did not have the Anti Run-On Valve, the engines would not stop, but instead kept on running even when the Ignition Key was removed. What was happening?

When do you turn off the ignition on a MG?

Back in the mid 70’s when the US introduced emission standards, MG made some modifications to the US models. One of these modifications was the Anti Run-On Valve another was the Ignition Relay. The idea was that to turn off the engine, you removed the ignition by removing power from the Ignition Relay. This was applied to US ‘77 and ‘78 models.

How does an anti run on valve work on a car?

One of these modifications was the Anti Run-On Valve another was the Ignition Relay. The idea was that to turn off the engine, you removed the ignition by removing power from the Ignition Relay. This was applied to US ‘77 and ‘78 models. In 1979, MG incorporated some of these modifications – but notthe Anti Run-On Valve into the British cars.

What should I do if my car won’t turn off?

With the ignition turned off and the car continuing to run, simply remove the plug from the alternator (DO NOT TRY AND REMOVE THE BATTERY POWER WIRE FROM THE POWER STUD!) and the car should shut off if the alternator is creating the problem.