Skip the auto shop - Our mechanics make house calls

Q: Car lost power and makes a really loud noise - 2001 Chevrolet Blazer

asked by on

Car makes a really loud noise when accelerating. Its started when coming up a bill hill on the freeway. It lost power and started making that loud noise. There isn't anything leaking and there is no service engine light on. I recently had a flat tire and got a replacement and car seemed unlined.

My car has 140000 miles.
My car has an automatic transmission.

A: Hello. You may still want to have a diagnos...

Hello. You may still want to have a diagnostic troubleshooting code scan performed on the vehicle. Not all issues will automatically trigger a warning light. However, there may be mechanical issues to blame for this. You will want to take a good look at your motor mounts. It may sound odd at first, but a broken mount(s) can cause a huge number of issues very similar to yours.

You can also raise the vehicle up off the ground and attempt to recreate the sound to see if it is coming from your wheels. If you don’t know if it is engine related or not, you will want to check the alignment and the wheel bearings. If you cannot find the issue, then I recommend having a certified mechanic, such as one from YourMechanic, come to your location to perform an inspection to determine why the car is losing power.

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 have a 2000 Chevy blazer won't go in 4wD.

There is a device on the transfer case that makes the mechanical engagement that allows power to be transferred to the front wheels. If the power and ground signals are present here and there is no engagement, suspect the actuator....

Q: Can't start car due to security system

Hi there. Your vehicle's anti-theft system seems to be malfunctioning. A change of ignition cylinder will cause this problem because your vehicle thinks someone attempted to steal it. It is possible to bypass this anti-theft system in order to ensure...

Q: Loss of power and stalling when braking.

Having your car stall on you when you are trying to brake can be a frustrating and dangerous experience. Your RPMS dropping low and your vehicle stalling can be caused by a few different problems. The issue may be due...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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 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...