Q: car wont start and knocking noise

asked by on

im driving down the road and my car dash blinks and then my car cuts off so i pulled to the side of the road and try to crank it nothing happens i got a jump nothing happen, changed the alternator it doesnt crank but have knocking noise can you give me some advice

My car has 127000 miles.
My car has an automatic transmission.

When you turn the engine over with the starter motor, if there is an unusual and marked noise, such as knocking, that did not exist before, that most likely signifies that something has broken. Is the car, by chance, out of oil? Running the engine without oil can cause an engine to stop and also will cause noise. If there is adequate oil, to have the exact cause of the knocking pinpointed, and get an estimate of the required repairs, you can request a vehicle noise diagnostic and the responding certified mechanic will also determine why the car is not starting. 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. car wont start and knocking noise

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: Click sound when press gas pedal

This sounds like potentially a valve train noise which is normal upon start up. As the car sits for a period of time the oil moves down to the bottom of the motor. Upon start up, the oil takes time...

Q: Camry 2008 Check Engine Light coming on and no acceleration above 20 km

Hello - the lack of acceleration or speed over 20kpm is classic behavior for a failed throttle position sensor. I would find out specifically what codes are now being set before spending any more money on parts or repair. Most...

Q: Front end damage from hitting a curb. Left front wheel/suspension damage.

Hi there. I'm sorry to hear about the damage incurred on your car. This task is best handled by a collision repair estimator at a reputable paint and body shop. They are trained to evaluate visible and not-so-visible damage, and...

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.