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.

A: Hello there, thanks for writing in. You sho...

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Loss of power while driving the car after it gets moving. Steering also goes out. I shut car off and start it back up and it's fine.

Hi, thanks for writing in. There are a few components that can cause these issues. The easiest part to inspect for proper function is the drive belt(s). If these are slipping, stretching, or breaking they will slip and can cause...

Q: Why is my transmission fluid leaking?

Generally, there are only a few places for leaking transmission fluid to go to since it does not burn off inside the transmission, unlike motor oil inside an engine. You have already ruled out the possibility of an external leak...

Q: Losing gas when my car is going up a hill

In many cases, the issue you're describing is caused by either a small crack in the fuel cell, fuel lines connections, or a damaged fuel line itself. If the issue is towards the rear of the vehicle, and severe enough,...

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...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...