A new sound coming from your exhaust system should never be ignored. This is often due to a timing chain attached to the engine. My car is making a noise when braking Squeaking. You would probably be right. Drive half a block to where there’s a stop sign. Belts. That dreaded clicking noise can usually be traced to the battery, and the fix could be as simple as a jump-start or tightening a … Exactly Why Is the Platypus So Weird? So your AC is running properly but makes a loud noise when it shuts off. After that, it drives fine, no more noise. 1 decade ago. The following are some of the more common sounds made by a worn engine at start up. Everything seems to be fine, but then a little shaking begins – then a little more – and soon you have a vibration that you can feel through the seat and the steering wheel. If your car squeals at start-up, the culprit is most likely the belt system. When i start up my car it starts fine but then 2 seconds later it makes this loud noise. Answer Save. Replace damaged belts immediately. This morning, I'm driving and after a stop sign, I take off and my car's engine suddenly gets a lot louder. Drive half a block to where there’s a stop sign. 9 out of 10 times when I turn on the engine - it makes a very loud high pitched screeching sound (seems like its coming out of the hood of the car). This morning, I'm driving and after a stop sign, I take off and my car's engine suddenly gets a lot louder. I have not much wisdom on cars but first impression was that it may be a muffler issue (since I've had that before on another car). What seems to make the … My car does a loud screeching sound when it first starts moving and usually eventually it'll stop. The second time they said it was actually the alternator that wasnt' right that was throwing the belts. When you hear loud sounds when the car is in gear like this, get the car … My daughter who was inside the house could hear the noise. Just today my car was really loud when I drove it, what is the problem? Shut it off and re-started ok, but very concerned. But also when i roll down the window it is also making a bit of a squeeking noise (cant hear it unless the radio is off or if you roll down the window). That dreaded clicking noise can usually be traced to the battery, and the fix could be as simple as a jump-start or tightening a … Car. If your vehicle is complaining loudly at the rear, you likely do not have a problem with your exhaust system, but rather with the engine tuning itself. Adam. While light wear is not a cause for immediate concern, the belt should be replaced immediately when the wear is noticeable. This noise is usually louder when you start the engine cold, and fades away when you accelerate up to high speeds. Look closely at the belt to see if it is worn, torn or otherwise compromised. My guess is that because the car is cold (which equals RICH) it is pumping a bunch of unburnt fuel out the exhaust. V10s sound especially violent during a cold start To start with, a car’s ECU decides that the engine has to idle higher when the engine is cold to stop it from stalling. The car not starting, accompanied with a suspicious clicking sound, needs immediate attention. Is this a backfiring noise? Favourite answer. Update: sounds like a race car or something and the car is a 97 buick regal. Start the car. If you only hear the noise when your unit turns on, the compressor motor is a likely culprit. While the most likely culprit is a dead battery, there could be other reasons as well. I will get under it and see if anything loose. The most common problem is a worn or loose belt. Readers, if you've experienced a similar sound when starting your car (whether or not you got that knock to knock it off) -- join the conversation. Look closely at the belt to see if it is worn, torn or otherwise compromised. What's an S&P 500 Fund and How Do You Invest in One? In automatic transmission cars, you have a torque converter. The second time they said it was actually the alternator that wasnt' right that was throwing the belts. Once the auto choke begins to come open it smooths out. The noise is like the normal noise an engine makes but 3 times as loud. When I get to around 30 mph, it gets really loud and just continues to get louder the faster I go. Rowe studied engineering, philosophy and American literature at Central Florida Community College. Fortunately, vibrations are so common that they are easy to diagnose. Relevance. It goes away. Replace damaged belts immediately. Some are more serious than others, but any noise should be investigated, particularly if it gets louder or faster with rpm. The sound of a squeaking belt in a car’s engine can be caused by weather conditions, leaking fluids, maintenance issues or wear and tear. What is going on? What seems to make the … The main reason is that it controls the vibration and road shocks, so any damage in it can cause the opposite. I see it all the time but this is the first time it's started happening to my own car.. Basically when I first turn the car on, there's instantly a pretty horrific squealing that sounds belt-related, and develops to an even higher pitch as I pull out of my parking spot before cutting off as I straighten out and drive away. The most common problem is a worn or loose belt. 14 Answers. The sound you hear from the cats when the vehicle is first started is primarily the expansion of heating metal. A bad battery is not going to cause grinding but it could cause a slow rotation of the motor or starter that will sound real bad. When the engine is started cold, regardless of the outside temperature, the idle is rough and there is a noticable power loss. 2014 Mercedes-Benz E350. So your AC is running properly but makes a loud noise when it shuts off. This happens in all kinds of weather (hot, cold). There are no “check engine” lights on and the car runs fine. My daughter who was inside the house could hear the noise. What Does a Squealing Noise Indicate When a Car Starts. When i start up my car it starts fine but then 2 seconds later it makes this loud noise. When my 2002 Porsche Boxter has been sitting overnight and the engine is cold, after start-up and then accelerating I hear a loud, single “BANGing” noise emitting from behind the passenger seat near where the mid-engine flat-six is located. After 1 minute or so, the idle is almost silent with just a subtle burble in the background. We use cookies to give you the best possible experience on our website. I have a 1998 Mazda Protege with 160,000 miles on it. The Symptom: A loud exhaust noise that may be coming from the front or the rear of the vehicle. Connect one-on-one with {0} who will answer your question. Some newer engines inhale a bit of air on cold start-up to check for evaporation in the engine. The battery is what the car uses to provide electrical power to the entire car and electrical components (e.g. If the transmission fluid gets too low, the torque converter can start to fail. The noise is like the normal noise an engine makes but 3 times as loud. I turn left from my side street onto a busier street, hear a bit of squeaking. If the transmission fluid gets too low, the torque converter can start to fail. If the starter is turning the motor over real fast I would not worry about the battery. It may be low on fluid, be past its prime, or need a jump. 2014 Mercedes-Benz E350. If your car squeals at start-up, the culprit is most likely the belt system. What could be causing it? The serpentine belt, also sometimes called the accessory belt, drives the alternator and various pumps, and if it is loose or worn, it begins making a squealing noise. Worn Torque Converter. And could it be an indication that you need repairs to your system? When it comes to cars, the unexpected is usually bad and changes in state are almost always for the worse. Causes for AC making a loud noise. The amount of time we spend keeping car seats warm in this country means no change in what our vehicles sound like or act like is going to go unnoticed. Worn Torque Converter. Open up the car hood and check the car battery. Most newer cars use a single, serpentine belt; older models may have as many as three belts. Every abnormal car sound is symptomatic of a specific underlying anomaly. A slow engine crank paired with this unfortunate noise means your battery is on the fritz. My car makes a loud exhaust... My car makes a loud exhaust sound when I first start it but goes away after a few minutes . Your car has several belts, one for the power steering pulley, one for the AC compressor and one for the steering (if the belt is rubber and not a chain). If you only hear the noise when your unit turns on, the compressor motor is a likely culprit. This causes grinding noises when the car is in gear. We use cookies to give you the best possible experience on our website. Richard Rowe has been writing professionally since 2007, specializing in automotive topics. Fortunately, vibrations are so common that they are easy to diagnose. You would probably be right. lights, radio, etc.). Picked it up after 2 days and upon starting heard a very loud rattling sound from engine; as if it were going to drop right out of the car. The screeching sound lasts about 30 seconds and then poof - it stops. Usually, when the car lunges when you're on the brake, it's due to the torque converter slipping or other internal transmission problems. One of the most common causes of a loud vehicle is an exhaust leak. I have a ’93 mustang lx and just recently I had my alternator tensioner pully replaced and a couple days after that my car started making a loud squeaking noise coming from the front of the car. Clicking sound and the inability to start may be attributed to inadequate power being supplied to the car’s starter motor, because of car battery terminal corrosion. Answer Save. Shut it off and re-started ok, but very concerned. It can cause the engine to vibrate during idle or when the car is stopped. It never used to make this noise i started noticing it about a week ago. Rattling on cold start. When it comes to cars, the unexpected is usually bad and changes in state are almost always for the worse. When it comes to cars, the unexpected is usually bad and changes in state are almost always for the worse. Take my foot off the brakes (just to test it) and I still hear squeaking. Everything seems to be fine, but then a little shaking begins – then a little more – and soon you have a vibration that you can feel through the seat and the steering wheel. I see it all the time but this is the first time it's started happening to my own car.. Basically when I first turn the car on, there's instantly a pretty horrific squealing that sounds belt-related, and develops to an even higher pitch as I pull out of my parking spot before cutting off as I straighten out and drive away. This is an issue that requires attention but does not pose danger or immediate risk of major … But also when i roll down the window it is also making a bit of a squeeking noise (cant hear it unless the radio is off or if you roll down the window). When I get to around 30 mph, it gets really loud and just continues to get louder the faster I go. The following are some of the more common sounds made by a worn engine at start up. Causes for AC making a loud noise. The sound feels like it is coming from under the driver side . It’s likely that damage or wear to the needle bearings are causing this sound. This happens in all kinds of weather (hot, cold). My Tl make a loud knocking sound when I first start it up in the morning or after being parked for at least 6 hours. My Tl make a loud knocking sound when I first start it up in the morning or after being parked for at least 6 hours. The car is "louder" because on a cold start, the engine attempts to get itself within its operating temperature range. I've already taken it in twice for that problem and its still not fixed. The serpentine belt, also sometimes called the accessory belt, drives the alternator and various pumps, and if it … Most often, the belt screeching occurs at cold start: when the car is started after being parked for at least four or five hours. - Answered by a verified Auto Mechanic. Why is my car shaking? Some components that will make noise with low oil pressure are the lifters, valve lash adjusters, rocker arms and variable valve-train adjuster (if so equipped.). But it sure is a nasty grinding sounding. If the belt is not worn, the owner should check the tensioner to ensure the belt is tightened properly. If your car squeaks or squeals when you apply the brakes, your brake pads are telling you that it’s time to replace them. 9 out of 10 times when I turn on the engine - it makes a very loud high pitched screeching sound (seems like its coming out of the hood of the car). I've already taken it in twice for that problem and its still not fixed. It may be low on fluid, be past its prime, or need a jump. Some modern engines naturally rattle very strongly during a cold start. Why is my AC making a loud noise when starting or shutting off? The noise is NOT very high pitched. Add some oil, and if you’re concerned there may be a leak, get your car to your mechanic for a checkup. Asked by Visitor in Fort Lauderdale, FL on . Why is my car shaking? Ask a mechanic online and get answers to your car questions. It never used to make this noise i started noticing it about a week ago. It makes a loud exhaust sound when the engine is cold but goes away after a few minutes. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Took my warrantied vehicle listed above (v8 premier) in to have the radiator fixed and when I got the car back it had an extremely loud roaring noise when accelerating. It happens to many car owners, especially after they have been driving the car for a great deal of time. This is normal M5 behaviour, just accentuated by the Tubi.

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