Skip the auto shop - Our mechanics make house calls

Q: No power to coil

asked by on

I have power to the coil when the key is just turned on but as soon as I try to start the car I lose power to the coil. My car has an automatic transmission.

Hello there, thanks for writing in. You should have power to the coil when the ignition is turned on, and as you start the ignition switch, it should send power on the same wire to the coil. If you lose contact in the ignition switch, then it is a bad ignition switch and should be replaced. It is mounted on the steering column. If you’d like further assistance, consider having one of our certified automotive technicians come to your home or office to diagnose and inspect the issue for you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. No power to coil

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Air idle control valve bad? Loss of power and sluggish

You should have a second opinion on the part that needs replaced. The engine has a throttle body that is electronic and controls power. There are other sensors involved that can control the loss of power. You should have the...

Q: Rattling sound under the car.

Hi there. If you have a flex plate or a flywheel on your vehicle, the nose could be a loose bolt causing the rattling noise as the engine is running. If the noise lessens out as the engine is revved...

Q: Red light showing a car with a lock is on?

Hi, thanks for writing in. I'd be happy to help. This is your car immobilizer light that indicates the car is armed. The immobilizer, usually called Securi-Lock in Ford vehicles, is a passive anti-theft device that disables your vehicle’s ability...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...