Skip the auto shop - Our mechanics make house calls

Q: Noise above 40 mph

asked by on

I have a heavy duty cutaway service van with 175000 miles on it. While driving on the freeway it started making a wooing noise from the front end when I drive above 40 mph. It gets louder when I turn right and still the van is still moving. If I turn left and still moving the noise goes away. I had the ball joints and wheel bearings replaced at a front end shop. I drove it again and the same thing happened. I brought it back to the shop and they told me the front rotors and calipers needed replacement. But I already put in the new parts and replaced them myself with new pads. Do you know what this could be? I am mystified.

A: Many different things can cause a drivetrai...

Many different things can cause a drivetrain noise above 40MPH. The most common are wheel bearings, driveshaft, U-joints, or the differential. If you'd like some assistance with these checks, feel free to contact a qualified technician who will be able to diagnose the noise and perform any repairs that are required.

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: Gasoline pours out of the almost empty gas tank

Hi there. This is typically caused by one of two things. The most common being a bad fuel tank vent valve. This valve should open while fueling allowing the fuel vapor to be released to keep the fuel from backing...

Q: Vehicle hard to start

The carburetor on your van may have gotten sediment from the fuel system into it, which causes the jets to get clogged. I recommend having the fuel pump checked to see if it is working properly and sending the right...

Q: Loud jet engine noise when accelerating and when turning on AC

A few different things can cause this fault. Though 50,000 miles seems a bit early for most of them, the usual causes for the loud noise include: a failed idler, a faulty belt tensioner, an air leak, an exhaust leak,...

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 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...