Why does my engine not start when I hold the key?
The only possible reason that the starter doesn’t operate after the engine is started and you hold the key in the start position is that there is a vacuum lockout that kills the current to the starter after engine starts and is producing vacuum. This is true on my 2003 Toyota 4Runner and my 2006 Chevrolet Uplander.
How does the start and Run mode work?
The start and run modes. During the start mode, this component allows full battery voltage to the secondary ignition system. This ensures that the spark is hot enough to fire a cold start air/fuel mixture. Once the engine starts, and the ignition switch moves to the run position.
What happens when you let the car start?
However, as soon as you let go of the key, the engine turns off. If you hold the key in the start position the car continues to run indefinitely (no problems, except a tired arm/hand from holding the key.) We managed to drive it home this way. Car alway starts without any difficulty.
What should I do if my car won’t start?
If you hold the key in the start position the car continues to run indefinitely (no problems, except a tired arm/hand from holding the key.) We managed to drive it home this way. Car alway starts without any difficulty. This problem happened the first time a few days ago, then stopped. It is now occurring much more frequently.
When do you release the key from the starter?
Instead or releasing the key and letting the internal spring turn the key to “Run”, you only release the key part way to the “Run” position. Just until the starter is disengaged.
Why does my car only start when the key is released?
The common cause for the engine to only start when the key is released is failure in the bypass circuit. There are several reasons that could cause the bypass circuit to fail: Faulty starter solenoid. This only applies when there is a 3 terminal starter solenoid in question.
What happens if you don’t turn the ignition key?
Sometimes the ignition key won’t turn or rotate. If that happens the vehicle won’t start, the steering wheel won’t turn and it won’t shift into gear. On a late 90’s or early 2000 GM vehicle this is the way to get it apart so you can replace the tumbler.
The start and run modes. During the start mode, this component allows full battery voltage to the secondary ignition system. This ensures that the spark is hot enough to fire a cold start air/fuel mixture. Once the engine starts, and the ignition switch moves to the run position.
The only possible reason that the starter doesn’t operate after the engine is started and you hold the key in the start position is that there is a vacuum lockout that kills the current to the starter after engine starts and is producing vacuum. This is true on my 2003 Toyota 4Runner and my 2006 Chevrolet Uplander.
What is the position of the ignition key?
B (ACC/ACCESSORY): This position provides power to some of the electrical accessories. It unlocks the steering wheel and ignition. To move the key from ACC/ ACCESSORY to LOCK/OFF, push in the key and then turn it to LOCK/OFF.
When does the ignition switch stay in the C position?
C (ON/RUN): The ignition switch stays in this position when the engine is running. This position can be used to operate the electrical accessories, including the ventilation fan and 12-volt power outlet, as well as to display some warning and indicator lights.
Which is the only position from which the key can be removed?
This is the only position from which the key can be removed. This locks the steering wheel, ignition, and automatic transmission. Do not turn the engine off when the vehicle is moving. This will cause a loss of power assist in the brake and steering systems and disable the airbags.