How does the ignition coil work on a Toyota Sienna?
Your Toyota needs more than a car battery to fire up the engine. Ignition coils for Toyota Sienna transfer power from the battery to the spark plugs in the engine. The repeated exposure to high voltage wears down the ignition coils, affecting the performance of your vehicle.
What causes spark plugs to spark in Toyota Sienna?
The power transistor, in turn, switches on and off the current to the primary coil. When the current to the primary coil is cut off, highvoltage is generated in the secondary coil. This voltage is applied to the spark plugs, causing them to spark inside the cylinders.
Where does the high voltage come from on a Toyota Sienna?
High-voltage is generated in the secondary wiring and then applied directly to each spark plug. The sparks of the spark plugs pass from the center electrodes to the ground electrodes.
Where does the spark plug go in an ignition coil?
A side electrode curves out from the bottom of the shell toward the center electrode. The shell is threaded, so the spark plug can be installed in the combustion chamber. When high voltage is sent by the ignition coil to the spark plug, a spark jumps the gap between the center and side electrodes, igniting the air/fuel mixture.
Why does my Toyota Sienna have no power?
You’ve got a main connection problem. Check that the negative connection from the battery is properly attached to the car body, with no corrosion. The positive connection leaves the battery and goes to a small terminal block. I once had this come loose and the van died on the road.
What’s the problem with my 2005 Toyota Sienna?
I am having a puzzling problem with my 2005 Toyota Sienna. Yesterday, shortly after returning from a short trip, I tried to start my Sienna without success. When I turned the key to start the car, I got nothing–no clicking, no cranking, no idiot lights on the dash–nothing.
Are there any lights on my Toyota Sienna?
I didn’t even get any door chime or dome light when I opened the drivers door with the key still in the ignition. No headlights, no turn signals, no emergency flashers. Even though the battery is only 6 months old, I checked it and it seemed to be good.