Why does my Nissan SL make a rattling noise when I start it?
One is that the VTC gear on the intake cam is making the noise and the other is that the cam chain tensioner is slow in filling with oil (i.e. hydraulic pressure) and it is causing the noise. Sometimes it rattles when we first start it and other times it does not. Once you start the engine, then turn it off it, then restart it, it nevers rattles.
Why does my Nissan Qashqai make a knocking noise?
Ive just had a towbar fitted to my 09 Nissan Qashqai, the towbar is by Tow-Trust Towbars and according to their website the correct part has been fitted. However, as soon as the exhaust system heats u … read more My Nissan X Trail SVE (2005) is making a clunking noise when I go along the pot holed farm road.
Why does my timing chain make a rattling noise?
This rattling noise should not be taken lightly as it warns of upcoming timing chain failure. The cause of the noise is faulty timing chain guide rails and timing chain tensioners that wear out well ahead of schedule. These components are there to keep the timing chain tight and properly positioned.
What kind of car makes a clunking noise?
My Nissan X Trail SVE (2005) is making a clunking noise when I go along the pot holed farm road. It is more obvious when the car is bumping side to side rather than up and down. My local garage though … read more I have a 57 plate Nissan Qashqai. Since its purchase I hear I have a 57 plate Nissan Qashqai.
One is that the VTC gear on the intake cam is making the noise and the other is that the cam chain tensioner is slow in filling with oil (i.e. hydraulic pressure) and it is causing the noise. Sometimes it rattles when we first start it and other times it does not. Once you start the engine, then turn it off it, then restart it, it nevers rattles.
Why does my car make a rattling noise when it starts up?
It doesn’t do it when cranking, it’s only when the car first starts up (more noticeable on cold start-up). It’s also not every time you start it, only when it’s been sitting awhile (such as over night). I’m not exactly sure what it is but it’s pretty loud. After about 10-15 seconds or so, the sound settles and is no longer audible.
Why does my AC rattle when I turn it on?
The noise would start when the compressor engages due to the increased load on the engine. Compressor Clutch: The compressor clutch is a high-wear item, and if it’s worn out, it can create a rattle during operation. Some vehicles can have only the clutch replaced, but some require replacement of both the clutch and compressor.
Why is my car making a ticking noise?
Over time, the engine can consume, burn or leak oil. If the oil level gets too low, you can have a situation where the oil pump sucks air into it and the air gets pumped through the engine along with whatever oil is remaining. This can cause a rattling or ticking noise from within the engine.
It doesn’t do it when cranking, it’s only when the car first starts up (more noticeable on cold start-up). It’s also not every time you start it, only when it’s been sitting awhile (such as over night). I’m not exactly sure what it is but it’s pretty loud. After about 10-15 seconds or so, the sound settles and is no longer audible.
Over time, the engine can consume, burn or leak oil. If the oil level gets too low, you can have a situation where the oil pump sucks air into it and the air gets pumped through the engine along with whatever oil is remaining. This can cause a rattling or ticking noise from within the engine.
When does the rattling sound in my car go away?
The rattling sound is temporary and goes away when I reach 30 – 40 mph. Anymore acceleration to speeds beyond that do not make this sound. I also feels like something is holding down the acceleration of the vehicle during the time I hear that rattling sound.
Why does my Altima start with no oil?
First off the problem is not the heat shield and it’s not just the Altima. Second the problem is the cams/valves in the head. When the engine sits for 8 hour or less the oil coating drains off the cams/valves. What you are hearing on start up is the valves and cams with 0 oil on them. There is few things you can try first off I must talk about OIL.
When does the tapping noise in the engine go away?
That tapping noise is normal and will disappear after the engine is warm (10 minutes). Some of us have split of a second rattle noise on startup because the timing chain tensioner building pressure time. This noise should disappear after few seconds. The one that you need to check is the dribbling noise after bumps.
Why does my Nissan Altima make a rattling noise?
What are common reasons my Nissan Altima engine rattles? While there are a variety of reasons your Nissan Altima is rattling, the most common 3 are the ball joints, struts or strut mount, or a problem with the sway bar links.
Why does my Nissan 2.5L make a clattering noise?
Possibly low on oil will make the top end of the V6 makes some clattering noises for a bit I’ve heard, not sure about the 2.5L. Check it out after it sits for at least an hour. 2.5’s do have that issue as well after the oil settles.
Why does my car make a rattling noise when I start it?
Sometimes it rattles when we first start it and other times it does not. Once you start the engine, then turn it off it, then restart it, it nevers rattles. I can live with it but my wife hates it and if the wife ain’t happy, nobody’s happy.
Why does my engine rattle when I Turn on the engine?
What’s actually happening is measured in thousandths of an inch. The microscopic layer of oil between the crankshaft and the connecting rod bearings has worn wider than its normal half-a-hair width. The connecting rod slams against the crankshaft every time the piston moves up or down. The impact makes the wear worse too, coincidentally.
Can a bad knock sensor cause an engine to knock?
There’s even a knock sensor that’s designed to detect engine knock and tell the Engine Control Unit, so it can correct the problem automatically. This naturally means that a bad knock sensor can allow the engine to knock.
What causes the engine to knock when you start the car?
Rod Knock: Worn Bearings Another type of engine knock is rod knock. As the pistons travel up and down in the engine, they turn the crankshaft which ultimately sends power to the wheels. The rod bearings facilitate smooth piston movement, but they can become worn out or come out of position over time.
Sometimes it rattles when we first start it and other times it does not. Once you start the engine, then turn it off it, then restart it, it nevers rattles. I can live with it but my wife hates it and if the wife ain’t happy, nobody’s happy.
What should I do when my Nissan SL clatters?
The Nissan shop manual says to pull the engine but you can do it with the engine in the car but it is very tight on the cam gear end of the motor. As you stated, you have to replace the entire bucket to make the lash adjustment on a valve. This, of course, requires that you pull the cams shafts out to remove the old buckets and put the new ones in.
Why does my car make a rattle noise when I start it?
Some of us have split of a second rattle noise on startup because the timing chain tensioner building pressure time. This noise should disappear after few seconds. The one that you need to check is the dribbling noise after bumps. It could be your passenger side and rear side engine mounts, or some screws loose behind the cowl/windshield.
First off the problem is not the heat shield and it’s not just the Altima. Second the problem is the cams/valves in the head. When the engine sits for 8 hour or less the oil coating drains off the cams/valves. What you are hearing on start up is the valves and cams with 0 oil on them. There is few things you can try first off I must talk about OIL.
That tapping noise is normal and will disappear after the engine is warm (10 minutes). Some of us have split of a second rattle noise on startup because the timing chain tensioner building pressure time. This noise should disappear after few seconds. The one that you need to check is the dribbling noise after bumps.
Why does my Nissan Altima make a whining noise when accelerating?
A whining sound when accelerating is almost always caused by a bad accessory attached to your Altima’s engine. Here are the most common causes of whining noises when accelerating: 1. Bad Alternator When an alternator is going bad, it’ll often begin to put out a high pitched whining sound. It should also be accompanied by the battery light.
Why does my Nissan Altima make blue smoke?
It seems like the pump could not suck the oil properly. The engine released some blue smoke and had to be repaired, and many other parts have been changed, including: cylinder head gasket, oil pump, distribution chain, crankshaft and camshaft sensors, water pump, damper, battery, alternator, ignition coil and engine holders.
Why does my alternator make a whining noise?
Alternator whine is a product of a drop in voltage between the radio and the alternator itself. It is usually way more noticeable on the A.M band of the radio. You’ll hear it match the acceleration of the vehicle.
Where does the knocking noise come from in a car?
But there’s no one under your car and no one is knocking on your engine. The noise comes from deep in the bowels of your motor. When you rev up the engine, the pitch and frequency changes.
What does it mean when someone is knocking on your engine?
Your car is idling and you’re impatiently waiting, listening to engine noise. You have places to be and time is running out. It sounds like someone keeps banging on your oil pan with a hammer, rhythmically rap-rap-rapping. If your car’s has a broken engine you can consider selling your car online or read on about engine rod knock.
What does engine knock sound like when you let off gas?
When you rev up the engine, the pitch and frequency changes. At one point, it sounds like the knocking noise nearly disappears. When you let off the gas, it continues and maybe even gets louder. This is what rod knock sounds like.
Why does my car make a clicking noise when I start it?
It sounds like the battery needs to be replaced. The clicking noise is probably the starter solenoid. The green and white foam is acid. You need to check and make sure the alternator is not overcharging the battery causing the acid to bubble out.
Why does my Nissan make a clunking noise when I start the car?
If that isn’t it, then while the hood is up, have someone start the car, and put it first in reverse, then in drive. If the engine jumps around when it goes into gear, then its most likely a bad motor mount. If not that, then jack the car up on both sides so that the front wheels are off the ground.
Why does my car make a clicking noise when I turn the wheel?
A clicking noise while turning in a front wheel drive car is usually caused by damaged or worn CV joints. CV joints are mounted on each end of a front axle, they transfer power to the wheels from the transmission. The CV joint allows flexibility in each end of the axle shaft as the vehicle is going down the road.
How to make clunking noise, front right side?
Doug has it right on what all it can be, but I will add a few things. First go to either side of the car with the hood up, and push the front end up, and down. While you’re doing this take a look at the nut that holds the strut to the strut mount on top of the fender.
What to do if your CV joint is making a clicking noise?
If caught in time, and the joint is not making any clicking noise, it is possible to replace the boots and bands, repack the joint with new grease, and extend the life of the joint for another 100k miles, but only if the CV joint is not making a clicking noise.
Why does my car rattle when I start it up?
When the engine is started after sitting overnight, the oil pressure takes 3-5 seconds to come up to “normal”. (It comes up instantly, not slowly.) The engine “rattles” until the oil pressure comes up to normal.
Is it normal for a VW engine to rattle?
I’ve certainly heard the same thing from many modern VW/Audi engines and professionally I consider it normal and harmless, although I find their 4 cylinder engines to be absurdly noisy in general and find that startup noise and general engine noise unacceptable personally.
Why is my FSI engine making a rattle noise?
Also keep in mind that I don’t know if your FSI engine is an older style using a timing belt with the hydraulic tensioner in the head for the cam chain, or if it’s the newer style with all chains.
Some of us have split of a second rattle noise on startup because the timing chain tensioner building pressure time. This noise should disappear after few seconds. The one that you need to check is the dribbling noise after bumps. It could be your passenger side and rear side engine mounts, or some screws loose behind the cowl/windshield.
What causes a rough idle in a Nissan Altima?
Spark Plug Wires – While not every model and engine combination of vehicles today comes with spark plug wires (a lot are now coil on plug), if your Altima happens to have them, they can go bad and cause a rough idle. Here’s a great video on how to diagnose bad plug wires with a multimeter. 2. Vacuum Leak
Why does my Nissan Altima shake when I ID?
If an oxygen sensor goes bad, it can make your Altima run too lean (or rich). A super lean running engine will often shake when idling. The mixture would be wrong at all RPM, but as the engine speed increases the shaking decreases. 7. Fuel Injectors
The Nissan shop manual says to pull the engine but you can do it with the engine in the car but it is very tight on the cam gear end of the motor. As you stated, you have to replace the entire bucket to make the lash adjustment on a valve. This, of course, requires that you pull the cams shafts out to remove the old buckets and put the new ones in.
What’s the problem with the Altima heat shield?
First off the problem is not the heat shield and it’s not just the Altima. Second the problem is the cams/valves in the head. When the engine sits for 8 hour or less the oil coating drains off the cams/valves. What you are hearing on start up is the valves and cams with 0 oil on them.
Why does my Nissan Altima make an annoying noise?
When speeding up, the car vibrates and makes an annoying noise which seems to be coming out from the engine. There is a power loss every now and then and it seems to be on the verge of stalling. When I stop the car I have to put it in a parking mode in order to avoid the noise.