I drove my car for about 4 hours and then it started making a knocking noise in the upper part of the engine it only knocks on startup and then whenever i go above about 2000 rpm i checked the oil it was very dry but i had the oil done about 3 months ago i topped off the oil and the knocking noise is still there but it isnt as loud any idea what it might be??
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
The oil light indicates low oil pressure, if the oil level is correct. That and the noise indicates you have a failed con rod (big end) bearing. The engine will have to come out unfortunately. From what you say, it may be that the crankshaft has not been damaged.
the best way to determine the cause of the noise is to remove the drive belt and start the engine for a few minutes. if it is in the drive belt components then the noise will cease. if not then the noise will remain.
Check the oil level first. Some Saturns consume oil for no reason. The heads are noisy on most of them. Valvetrains start to make noise after about 60k miles. This is normal. I hope this helps. Good luck
Crank and cam make different noises when going bad, however if the crank is bad it will knock all the time even at idle. From what you told me it seems like the lifters are not making pressure, after all the car was sitting for 4 years. What you can do is to drain some of the engine oil about a quart, then fill it with some trans oil yep I said tranny fluid and let it run for about half an hour. This will wash out the lifters and hopefully take care of your problem. Oh, don't forget to drain and fill the oil again after noise goes away.