Skip the auto shop - Our mechanics make house calls

Q: Loud whining noise - 2008 Chevrolet Trailblazer

asked by on

What is the loud whining noise coming from my truck?

My car has 110166 miles.
My car has an automatic transmission.

A: Hi there. Depending on when the noise occur...

Hi there. Depending on when the noise occurs I would be able to diagnose this issue better. If the noise occurs right when the engine is started then most of the time it is caused by a failure in the fan clutch on the engine. It is very common for these clutches to fail and cause this type of noise. It can also be low power steering fluid or the water pump. I usually pull the belt off of the engine and spin each accessory while I listen for the noise. If the noise only occurs when the vehicle is moving, then it may be in the transmission.

When one of the thrust bearings fail this noise will occur. It can also come from the rear differential. I usually get the vehicle in the air at that point and run it to try and isolate the noise. If you want to have this whining noise inspected, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose and repair this problem.

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: Hi I have a 2004 Chevy impala the motor still works but the passenger wiper does not move

The possible problem that is causing the motor to move drivers wiper arm and not the passenger side is going to be the wiper motor transmission is broken or the wiper are link to the motor transmission came loose. You...

Q: Gauges don't work

Hello. There are a few reasons for the gauges not working. I would start by checking the fuses. If the fuses check out, then the grounds should be looked at. There is the connection at the battery and another under...

Q: I have a check engine on once a while when I hit a bump on the freeway and my echo goes away. Is it the motor mounts?

Hello. From what you describe it would appear that your vehicle has more than one issue present. The check engine light comes on when the computer detects an issue with the vehicle's engine management system. It will set off the...

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...