Hot answers tagged

6

It sounds like a valve adjustment is required There are many items that can make a 'ticking' noise that is tied to the RPM of the vehicle. Having the sound match RPM's certainly gives a clue that it is associated with the operation of the engine. Many times a valve adjustment is required. This is a component of a regular maintenance schedule for almost ...


3

Carbon-metallic Brake Pads If you do have carbon-metallic brake pads, especially high performance ones like you might find on an Audi S4 (although I can't say for sure), the material that they are made out of do tend to be prone to noise which is an artifact that occurs from the manufacturer trying to optimise for braking efficiency. How to Fix Brake Noise ...


2

You should check belt tension and visually inspect the pulleys for rubber deposits. You can check pulleys by applying a load to the pulley and spinning it. You probably need to include which transfer case you have on the vehicle by looking at the stamped plate. How much vacuum is "little vacuum"? If you have a NVG231 there should be engine vacuum (roughly ...


2

The sound reminds me of an issue I've had before. I'm not sure how, but the plastic fender liner on the right front had come loose. Just looking at it, you couldn't tell there was an issue, but when driving, the force of the wind would pull the fender back and make it rub against the wheel. I didn't figure out what it was until the tire finally wore a ...


2

It's really hard to hear the noise in the video. The observation that it changes with fan speed is a strong indication that it has something to do with the blower fan. It is not uncommon for broken fan blades to cause rotary imbalance, resulting in the fan sounding very noisy when in operation. Note that this explanation would not explain any noises you ...


1

It kind of sounds like a wheel bearing or something rubbing on the tire. Do a visual inspection of all fender linings and inspect your tires for uneven wear. With a wheel jacked up and supported spin the wheel by hand while holding the spring. A bad bearing will transmit vibrations through the spring. Or it will be obviously loose when shaking the wheel.


1

This can be caused by being low on refrigerant. Before the refrigerant enters the expansion valve next to the evaporator, the refrigerant needs to be in liquid form so that it can expand and perform its cooling function. There needs to be a continuous supply of liquid from the condenser to ensure that refrigerant in gas form does not reach the evaporator. ...


1

It sounds from the comments that you have eliminated belt slip as the culprit due to the sound of the squeak (and lack of squeal). If you can pinpoint the squeaking to one specific pulley, it is likely the bearings for that pulley are on their last legs. Bearings perform better under heavier loads, which could explain why the squeak goes away at higher ...


1

It sounds as though the clutch for the fan has gone out and is now stuck, causing the fan to operate all the time (no slippage occurring). You can check to see if this is the case by opening your hood without the engine running and cold, grab the fan blade, and rotate the fan. If the fan doesn't rotate or rotate easily, this is most likely your issue.



Only top voted, non community-wiki answers of a minimum length are eligible