Skip the auto shop - Our mechanics make house calls

Q: Engine knocking and engine light on

asked by on

When I started my car today, the engine was knocking, so I gave it more gas, and it started fine. Then, the engine light came on.

Hello. If the Check Engine Light is on, then it would help to know what codes are coming up. The computer codes would help a mechanic find a starting point to determine the problem. From the description of the problem, this can be caused by a fuel injector that leaks excessive fuel into a cylinder, or it can be the start of an internal engine problem. A mechanic would definitely start with the codes. If you need further assistance, I recommend you have a mechanic, like one from YourMechanic, inspect the Check Engine Light and repair the damaged parts.

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: My engine will not start. It will only make a clicking noise. 1999 Chevrolet Tahoe

Hello. If you are getting a clicking noise when trying to start the vehicle most of the time it is either the battery or starter. I usually start by load testing the battery. If the battery does not pass then...

Q: front left making a rumble. doesnt do it when slightly turning left

It is likely that the left front wheel bearing has failed. When you swerve to the left on a ramp, what you doing is transferring some of the weight of the car from the left to the right. The transference...

Q: Replaced downstream o2 sensor, check engine light related to that sensor. What do i do?

Claimed by John Hege

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...
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...
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...