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6

It sounds like your alternator has not been tightened enough and the serpentine belt is slipping because of it. Since you have new belts on your engine, this is probably about the only thing which it can be. If you press on the belt with your thumb at the center of the long portion of the belt (between pulleys), you should get no more than about 1/2" inch of ...


4

Yes, the normal route is to add sound deadening material inside the doors and/or on the floor of the car. A corolla won't have much stock insulation so you should be able to make some good progress in reducing it. This is a common project for people who are installing nice audio systems, so you should be able to find some nice walk-throughs on audio sites. ...


4

As stated, this is most likely a slipping serpentine belt, but there could be other reasons besides moisture on the belt causing this problem. This is especially true if this is happening every day. The problem can also be caused from a weak tensioner pulley (the part which keeps the belt tight). I know this is unlikely, considering it's a new vehicle, but ...


3

An AC compressor puts a big strain on an engine when it's engaged. This is especially the case with low horse power 4-cylinder engines. What makes matters worse are high mileage engines which are in poor running condition. I experienced this with a Saab I used to have. I could only run the AC when I was moving at highway speeds. Otherwise it was too much ...


3

From your question, the whine is linked into braking both when the veicle is stopped or moving. I would first look at the brake servo, its hoses and valves. A vacuum leak can give a whining like noise.


3

There are a few possible things which could cause vibrations: When breaking hard, your discs could take up some heat and get warped, great article could be found here. Bad geometry could cause vibrations + uneven tyre wear (flat spots maybe?), see related article. Check wheel balancing, article here. I would recommend to check these first, there are ...


2

I have found that many times a U-joint in the early stages of failure will still pass the hand powered tug and twist test. It may be one or several damaged rollers that cause the clicking. The only sure method is to disconnect the suspect shaft and pivot the joint by hand to feel for any binding. You can try to isolate which joint is bad by driving slowly ...


2

If you are running your defrost, this sound could very well be the refrigerant equalizing in the A/C system. For most cars in the US, when running your defroster, the A/C comes on to dry the air so your windshield will defog. It allows you to see quicker through your windshield as well as not allowing the moisture in your breath to freeze on the inside of ...


2

It could be something really obvious - the clicking could be caused by a small object that is stuck in your tire tread like a pebble. Inspect your tire tread; if there is something stuck you should be able to pry it out with relative ease.


2

It ended up being the one dust shield, just like what the sound indicated. Apparently a small ding on the backside, right at the "corner" was touching the rotor. I went all around between the rotor and dust shield, on the corner that had the most work done recently, with a screwdriver and a hammer. That did the trick. Just a hint of scraping on hard ...


2

Well at the risk of sounding crass, I think you already know what you have to do. The winter tires will cause an excess of road noise on dry pavement. I doubt you will ever need them in the area of the world you are in, so would highly suggest you replace them with some good summer tires. The first bushing you are describing sounds like the strut mount at ...


2

Considering everything you've said to this point, it sounds like you have a bearing going out in your transmission. With your mileage, it wouldn't be unheard of. I would definitely have a respectable transmission shop in your area take a look at it. If it is a bearing, they can replace just the bearing (and any other worn part such as synchros and clutch -- ...


2

It sounds to me like the brake squealer, as in the brake pads are getting to the end of their life expectancy. You should be able to do a visual inspection of the brake pad should tell you very readily if this is the issue. EDIT: I realized I didn't answer the second part of your question. When the brakes start squealing, it probably isn't imperative ...


2

I would venture to assume it is your brakes which are talking to you. I bet the "squealer" is close enough to engage the rotor at certain points. Once the vehicle speed is fast enough it will not make the noise, or is covered up by road noise. I doubt, from your description, it has anything to do with the transmission itself.


2

I tend to agree with your suspension suspicion (ho ho, I slay me!) with one small addition: it could also be the sway bar bushings themselves (those that actually hold the bar and through which it rotates). Here's the easy way to find out which it is if you can get it to happen again: Take a can of pressurized lithium grease with the little red straw for ...


2

From your description, it seems like you are hearing normal sounds of operation while running over rough spots in the road created by cranes running down the road and creating divots in the road which are equally spaced apart. This can cause an extreme amount of noise in the cabin as you drive. Here in the state of Virginia (and in other states here in the ...


1

Your vehicle is a light-weight-build mass volume vehicle and under hard conditions would be susceptable to drumming. Never the less, your vehicle should be inspected for suspension, wheels and hubs, steering and exhaust being present and correct and in servicable condition. The recent deterioation in your local roads may be emphasising an already present ...


1

I had similar problem with my car too. During the 60 000 km check my mehcanic said they had to replace the "AC belt tensioner" because it was in bad condition. It didn't cost too much, worth a try. That 'click' sound after switching on the AC means that the AC clutch engaged and yes, it could be a bit noisy and it cause a strain for low powered cars. It's ...


1

Firstly discs do not warp.Pads contain metal that deposit on rotor so when measured in a number of places it is assumed the disc is warped.Check balance weights on rim have not fallen off.Jack up front wheels one at a time;grasp tyre each side of centre and pull to and away from you.Any noise or movement may indicate that tension on bearings is incorrect


1

I would check the ball joints and tierod ends and control arm bushings. I have seen a lot of bad balljoints knock when the wheels hit the stops. I have also seen bad control arm bushings knock with acceleration and braking. Don't let it go for long without having it checked. If a ball joint or tierod separates you will loose control and your ability to ...


1

Sounds like it could be something wrong with your steering pump. Especially if this mostly happens when you have just started the car (cold engine) and are driving very slowly. Edit: if you have a steering fluid leak, this could be causing the steering pump to grind / knock. Try checking your steering fluid level and fill it up if it's running low. Then ...


1

This is a typical case of the serpentine belt slipping. In the very cold the efficiency of the battery drops off. When you start your vehicle the alternator has to deliver the load on the system. The extra load caused by the cold battery causes the slip. It would be made worse by a moist serpentine belt. Check with your dealer if a updated belt is ...


1

Well, they didn't lie to you. Which is a good start. I don't know anything about how cars behave in that temperature range, but I do know that that sound is made by a slipping fanbelt. This video is useful.


1

It sounds like your brake pads are about worn out. On disc brakes there is a small metal piece attached to the pad which, when there is enough wear on the pads, will start rubbing against the rotor and making the noise you are describing. It goes away when you touch the brakes because it is being forced against the rotor, not just riding against it. I ...


1

Look around the battery terminal and the fender and see if there are any sign of arcing. The loose battery may have shorted to the frame killing the ignition power and then moving away restoring things to normal. The black smoke may be from the unburned fuel drawn thru the carb causing a rich mixture on restart.


1

Where did you buy the rotors? They could have been sitting for a while. Sometimes when you buy rotors from a discount auto parts store it is a really good idea to have them shaved a little first. Especially the cheaper brands.


1

Without any other symptoms or issues, I would assume you just ran over something that your tire threw into the body of your car. Like a piece of a re-tread tire. Look under the hood for anything that looks out of place and check under the car for any fluid that might be leaking. If you don't find anything just keep driving and pay attention for anything ...


1

HAHA! I had this EXACT problem happen on one of my motorbikes. Basically the velocity of the wind hits a perfect speed over either a crack in the intake pipe, or some other object, and it whistles. I'm not really sure why you would bother with cold air intakes. At best they only really provide the same level of gains as a better air filter. There are ...


1

The groove could simply be a bit of dirt stuck there and I doubt it would generate the noise you describe (although getting rid of it is ideal). Based on the fact that the pads are thinner at the top than at the bottom and that the noise comes and goes seemingly at random my guess is that the corresponding calipers are getting stuck on their grooves for some ...


1

You have new brakes it takes time to them loose the original coating/surface. My have the same problem for a time but not lasted for this long. The grove is does noot sounds good. If they are not too deep you could go to a shop and they could make resurface it. Sometimes your disc soo thin that they could 'bend' because of the heat. Is this sound 'still' ...



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