Skip the auto shop - Our mechanics make house calls

Q: My car knocks - 2006 Toyota Yaris

asked by on

I cleaned its throttle body and replaced air cleaner,changed its spark plug. and using high octane fuel and also cleaned its main air sensor next to air cleaner....but there is heavy knocking...its 2szfe...1.3cc engine

My car has 153000 miles.
My car has an automatic transmission.

Hello. In newer vehicles with electronic fuel injection and ignition systems, engine knocking due to bad fuel or spark is extremely rare. In most cases, if the knocking sound is consistent and increases in speed as the RPM increases, it’s caused by lower levels of oil or oil lubrication issues. To see if this is the case, check your oil level or have the oil changed and see if this clears up the problem. If not, you may need the assistance of a professional mechanic to inspect and diagnose the engine noise.

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: I am looking to buy a 2000 lincoln LS with 186k miles on it. The only issue is that the owner told me that he gets misfire codes

The codes P0302 and P0307 are misfires on cylinders 2 and 7. I agree that you should have a tune-up on the car if you decide to purchase it. You would need to have the spark plugs replaced and the...

Q: i have a 2001 kia rio i just recently got my brakline on my drivers side replaced along with my calipers and brake pads.

This does not sound brake related. It sounds like the car has a performance issue with the engine. No power and shaking can be caused by a number of issues. There may be a misfire with any of the 4...

Q: Throttle body needs to be fixed and I want a estimate Also want to know if the $70 is for inspection only?

Billing question is sent to CS for the cost to repair or replace the throttle body and the cost for an inspection.

Related articles

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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...