2007-11-08 07:41:30 · 13 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
This is rather simpistic and stupid, but have you checked to make sure that the oil dipstick is securely back in place (pushed tightly down)? It could make a decent rattle if its loose.
2007-11-08 07:49:23 · answer #1 · answered by bmwdriver11 7 · 0⤊ 1⤋
Well beacue there is no way to determine what type of car you have I will attempt to give you some areas to check.
assuming that this is probally a small engine 4 or 6 cylinder.
first check your oil and determine if it is at the proper level, next check that your oil is not BLACK indincating that it would neeed a change.
Your valve train is in the area that you discribed and there will be some noise from this are, we are assuming that this is louder and noiser than normal. When the car is first started the valve train is lacking oil, if the noise goes away in the first minute or so after the car is started it may be considered normal. This is because it takes a few seconds for the oil pump to push oil up to that area. Now if it is something that continues after the car has been running for some time then you may have a plugged oil passage, this will happen if the oil has not been changed on a regular interval.
If you tell us what type of car and engine and whether it's a gas or deisel eng that would help. If it is a deisel then it's going to be noisey, this is normal.
Good luck!!
2007-11-08 07:51:33 · answer #2 · answered by soba_03 2 · 0⤊ 1⤋
To isolate exactly where the noise is coming from, Put a long 12" inexpensive screwdriver tip on the valve cover and place either of your ears directly on the plastic handle end. If the noise becomes noticeably louder the noise is coming from your valve train. Usually a hydraulic lifter is sticking. If you want to give your motor an inexpensive tonic, drain the oil change the filter, and add a quart of Rislone. Continue filling your motor with the proper viscosity Havoline Deposit Shield, Quaker State or Valvoline. Rislone is a very high detergent engine oil additive that does a super job of cleaning the inside of motors. If within 2,000 miles does not quiet the motor a mechanic will have to check the valve train to easily find the collapsed hydraulic lifter and change it out with a new one. At the same time he can check your camshaft for wear.
2007-11-08 08:01:39 · answer #3 · answered by Country Boy 7 · 0⤊ 1⤋
New engine unfortunately. Car will now be worth scrap value. Because of the lack of oil, it wouldn't have been lubricating vital parts of the engine, most importantly, the valves or "tappets". These can come out of place and hit other parts of the engine due to lack of oil and it costs a fortune to sort out as you need hydraulic lifters. Oil also helps cool the car, but most importantly so does coolant. As the car has run without, the Head Gasket MAY be damaged or warped. The cylinder head or Head Gasket is normally made of aluminium so will melt or warp very easily and too high temperatures. Basically, get a new car....Or be sneaky if you want and fill car up with quite a lot of oil and fill the reservoir with coolant and get it sold!
2016-04-03 02:22:15 · answer #4 · answered by ? 4 · 0⤊ 0⤋
The best suggestion is to take it to a shop that you trust. One person's rattle is another person's clunk. It is virtually impossible to diagnose problems such as this without seeing the vehicle and actually hearing the noise in question. Everyone here is making guesses and it won't help you.
2007-11-08 07:51:56 · answer #5 · answered by Otto 7 · 0⤊ 0⤋
It sounds like the rockers are out of adjustment or it could be a loose timing chain. Be sure the oil is full and the right grade. This is usually most noticeable in older cars.
2007-11-08 07:46:22 · answer #6 · answered by Anonymous · 0⤊ 1⤋
First check the engine oil level, if this does not solve it then possibly the tappets need adjusting, cam chain needs replacing etc.
2007-11-08 20:17:11 · answer #7 · answered by Anonymous · 0⤊ 0⤋
it sounds like engine wear, it could be a bearing that holds the cam shaft in place, but it may be worth a visual inspection just in case something has dropped in there by accident.
you have probably checked the oil already but it may be worth another look....last ly it could be a hydraulic tappet that is worn.....
2007-11-10 02:57:57 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Could be any of the following: big end or small end gone/ valve become loose/camshaft come loose/ a loose piston ring ................whatever it is, sounds like a visit due to the repair shop! Sharpish!!
2007-11-08 07:49:35 · answer #9 · answered by Anonymous · 0⤊ 1⤋
You could have a lifter ticking or even worse a rod-knocking most likely just a lifter you can buy stuff to quiet noisy lifters
2007-11-08 07:47:24 · answer #10 · answered by ja man 5 · 0⤊ 1⤋