Question about 2001 Hyundai Accent

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Upon start up, have what sounds like valve train noise

When I first start the car, engine makes rattling noise which sound like valves goes away on accel but you can hear it again when you decel.
After it warms up it almost completely goes away. I use 10 40 penzoil and change it and filter every 3 thousand car has 89000 on it.

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Posted on Dec 17, 2008

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Posted on Jan 02, 2017

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I have engine noise that sounds like timing chain noise that goes away when I remove the oil filler cap ,what is making the noise and how can I stop it


That noise could be coming from your PCV valve. It will make a rattling noise when it is working properly. When you remove the filler cap.you allow air to enter the engine so much that the valve won't work properly.

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Engine got a knocking cold start, silint when hot


It has developed a clicking engine noise on a cold start. After the car has warmed up, the sound goes away. ... Clicking or a sharp tapping from the valve cover on top of the engine would point to a valve train noise. A dull tapping or slapping sound from the side of the engine block would point more toward piston slap.4 Nov 2011

Cold-start engine clicking is a nuisance, not a disaster - StarTribune.com


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Why is there a knocking sound from the top of the engine?


disable each cylinder one at a time. If the noise goes away it is likely a rod knock and is terminal. A new engine is the only way to resolve. If it does not go away than it is possible it is a wrist pin, also terminal, or in the valve train.

if you think it could be in the valve train try this. Add 1/2 can of seafoam motor tune to the oil. Start the car and let it run. If the noise goes away it was a valve train issue. change the oil and make sure you are keeping up with the proper maintenance for you vehicle.

if the noise continues than i would seek a professional ear to listen to eat and give an opinion.


I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

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Rod knock upon start


Not sure on model but to me sounds like its a dodgey valve lifter when the seals start to go they cannot hold the oil and when there under pressure they basically empty them selves hence when you turn the engine off and restart you get a rattle sound untill the valve fills again as long as the cars running ok leave it untill you have to replace them unless there easy to do sone are sone are a pain

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Noise sounds like a metallic chirp from valve train.


To narrow it down, while the engine is running, don't get near moving parts, you can use a long piece of steel, metal, put 1 end on the valve cover, the other to your ear and listen for rattling. You can move it around to narrow down the source of the noise. It's like a stethoscope but works well. I use a 3' long screwdriver.

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The "rattling sound" could be a number of things, but if the sound is coming from the upper part of your engine, it is most likey valve train noise. Removal of the valve cover for an inspection would be needed to determine. Make sure your oil level is full and you have the correct grade of oil in your engine. ...i hope this helps.

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I have a 2001 Ford ranger supercab that makes rattling noises. It has a 4.0L SOHC. It makes a very fast and loud metallic rattle wich softens anfter about a second or so when I first start it for the day....


4.0l's are notorious for valve rattle on cold start-up. There is really nothing you can do to make it go away short of completely replacing the valve train in the top end, and that isn't a permanent fix. It's is an top end oiling issue from the factory. Just don't race your engine on cold start-up until the rattle stops.

The rattle in the transmission sounds to me to be more of a loose dust shield/heat shield around the transmission or exhaust than a mechanical issue.

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My 1998 F150 5.4l engine is making a clicking sound


I believe there is a NTHSA bulletin on this problem. You can go to the NTHSA website and look it up. Usually this type of noise is the injector or valve train.

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Oil consumption, rattle, engine noise


Check under the hood and inspect the valve cover gasket. If it's bad it would explain why you don't see any leaks on the ground because it's probably burning off on the manifold. This ticking you're hearing is a lack of lubrication to the rocker arms. Apart from the valve cover gasket, you should get under the car and inspect the oil pan and oil filter for seepage. Best of luck on your problem.
Greg

Jun 10, 2009 | 2004 Nissan Sentra

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