Skip the auto shop - Our mechanics make house calls

Q: Jeep making a whirring noise

asked by on

The jeep is making a whirring/humming noise. It seems to fade as the engine heats up, but is still present. In addition, my gas mileage is horrible and I am losing a ton of power. I recently had the U-joints on the rear driveshaft replaced, as well as a new cylinder, radiator, lifters, and serpentine belt. I am wondering if any off this could be related.

A: Hello, I will address the issues as you pre...

Hello, I will address the issues as you present them. For the whirring/humming, I recommend having this noise heard by a mechanic to have it diagnosed correctly. Noises are a hands on job, so they must be experienced firsthand to give a proper recommendation for repair. The loss of power and poor fuel economy can be related, because you had quite a bit of engine work done, there’s a chance it could be out of sync, have vacuum leak, or have a faulty sensor. This engine is also equipped with electronic fuel injection so it should be scanned for codes and data monitored to see if something is out of spec. For the U-joints and the rear driveshaft, and the belt, those won’t affect the drivability of the vehicle. You can take it back to the shop that performed the work or you can have another mechanic take a look at for an independent 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

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: Problem starting

What you are describing sounds like a faulty starter solenoid. A faulty starter solenoid will generally produce a clicking sound when turning the key. The starter solenoid is located on the starter and has internal electrical contacts that transmit electricity...

Q: Car broke down after making knocking sound.

This sounds like a possible loss of oil problem. If the engine has seized up before and the problem is reoccurring the engine is most likely dry. I would recommend checking the engine oil to see if it is low....

Q: Got a trouble code P0171.

The purpose of the No. 2 sensor is to monitor the efficiency of the catalytic converter. Consequently, if everything is functioning correctly, the No. 2 sensor is supposed to report a constant voltage. If the No. 2 sensor waveform mimicked...

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 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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...