Q: My engine won't turn just a single click or knock when I turn the key

asked by on

My engine won't start just a single click or knock in the engine carpartment when I turn the key battery and electric All is working

My car has 2003000 miles.
My car has an automatic transmission.

If the starter motor is not even cranking the engine, among the first possibilities is a weak battery, excessive voltage drop in the starter circuit due to poor electrical connections, or a dead starter/solenoid. Prior to performing diagnostics the battery should be load tested. With a battery in good condition and the immobilizer (security) system off, if the starter motor does not operate at that point, there are only two possibilities: 1) either there is no power to the starter motor/solenoid, or an excessive voltage drop, hence the entire starter circuit would have to be diagnosed; or 2) there is power but the starter/solenoid itself is bad and that includes intermittent operation which does happen. If you desire that a specialist from YourMechanic determine which of these is the issue, and get it resolved, please request a no start diagnostic. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

Was this answer helpful?
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. My engine won't turn just a single click or knock when I turn the key

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: Turbo issues with boost

Hi thanks for writing in. The Land Cruiser turbo diesel from that era uses a mechanical waste gate to bypass the exhaust around the turbine when the boost pressure reaches maximum. It should be a quiet and smooth action. It's...

Q: Q: Reverse not working

If you are able to put the transmission in reverse, but it just wont go and acts like its in park/neutral, you could be having internal transmission issues. There are many components inside an automatic transmission but things like a...

Q: How do I lock or unlock the doors inside the car?

Door locks provide important safety and security while you’re inside the car, as well as when you leave it. Being able to lock the doors ensures that no one can open it from the outside while you’re behind the wheel,...

Related articles

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...
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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...