Q: car wont start and knocking noise

asked by on October 21, 2017

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

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

Car makes knocking noise then turnsoff

Hi there. This issue could be caused by multiple system or component failures, ranging from fuel system parts or ignition system component failure. It's probably a good idea to have a professional mobile mechanic come to your location to complete...

Check Engine Light is on 2004 Toyota Camry

Hi there. The Check Engine Light is an indicator that you have a problem in one or more systems of your car. You would need to have the computer scanned to see what codes are stored and have them diagnosed...

Water damage to electrical components after a flood. Is there anyway for the electrical to be tested?

Many times when a vehicle has been involved in a flood, it is typically considered to be totaled. There are so many electrical systems in newer automobiles that it would be very tough to test everything for water damage. I...

Related articles

The Best Used Cars to Buy That Can Be Towed Behind an RV
Summer Summer is a great time for a road trip, but often travelers like bringing all the conveniences of home along, in the form of an RV. Then they tow their car behind it – sometimes this practice is called...
The Best Used Cars to Buy for Families
If If it’s time for you to search for the top used cars specifically for families, check out the list we’ve put together of the top five. The list of must-haves Typical items that families are looking for in their...
The Best Used Cars to Buy For Fuel Economy
Saving money on gas is an important factor to consider when buying a car. The Honda Civic, Toyota Prius, and Ford Fusion all have great fuel economy.