Skip the auto shop - Our mechanics make house calls

Q: Engine noises at higher rpms.

asked by on

this is regarding about my Hundai terracan car model 2004 with 236000milage.i feel some sound like turbo when i press my foot on the gasoline and Rpm cames upto 150/160rpm.but on 100/130rpm i cant feel any sounds.what is the main cause of this sounds.is there any posibilities that my engine crankcase/crankshaft is something Worn damage rather bearing broken? and also can i still used/drive it when sounds is bad but not too noisy my car still running fine thanks for you advise more Power...

My car has 236000 miles.
My car has an automatic transmission.

A: Hello. If your engine is making sounds at ...

Hello. If your engine is making sounds at higher rpm it may be possible that the issues are mechanical. The first thing I would do is check the engine's oil to make sure that it is at the proper level. Low engine oil can cause all sorts of issues, including noises, due to oil starvation. If the engine is not suffering in performance when you hear the noise then that is a sign that the noise is probably not related to a worn or damaged bearing. Usually worn or damaged bearings will produce a distinct knocking sound, and will affect performance. If the oil is good then the next things I would check are the belts and pulleys. If the belts or pulleys are worn they may cause noises that can change with engine speed. You may continue to drive the vehicle however the noises will likely get louder, and the issue more serious as time progresses. I would recommend having a professional technician, such as one from YourMechanic, to (diagnose the source of the noise)[https://www.yourmechanic.com/services/car-is-making-a-noise-inspection].

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・Save up to 30%

Get a quote

What others are asking

Q: Sometimes at very low speeds the brake pedal becomes hard and cannot be pressed.

It seems that your brake booster is not working well at low speeds. In this case, when the engine is not able to provide proper vacuum, the brake pedal gets hard. Try to press the brake pedal when the engine...

Q: Humming sound when AC on

If the noise gets louder when you accelerate and goes away with the A/C off then the problem is with the internal bearings within the A/C compressor itself. You should have the A/C compressor checked and replaced if noise is...

Q: Car chokes after starting

There are two options for the engine for your car. They are both 3.0 v6’s that are vastly different. If you are talking about oil in the spark plug tubes on the DOHC v6, that indicates a bad valve cover...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.