I think you need to know the difference between a knock and a ping. But, Going by what you are saying I need a couple of answers. Does this knock exist at an idle and gets louder as you raise the rpms in neutral? When did you last change engine oil and did this knock exist then? Ok, The easy part first. Drain your oil into a clean pan. and look for metal flakes or particles. Drag a magnet through it if you have one. There should be no metal and all that glitters is not gold. There should be nothing at all in the oil. Look at the drain plug, Some are magnetized. Let me know what you find. NedI think you need to know the difference between a knock and a ping. But, Going by what you are saying I need a couple of answers. Does this knock exist at an idle and gets louder as you raise the rpms in neutral? When did you last change engine oil and did this knock exist then? Ok, The easy part first. Drain your oil into a clean pan. and look for metal flakes or particles. Drag a magnet through it if you have one. There should be no metal and all that glitters is not gold. There should be nothing at all in the oil. Look at the drain plug, Some are magnetized. Let me know what you find. Ned
You can't post conmments that contain an email address.
Re: What do u think it is when u increase the gas and u...
Depends on what exactly it sounds like if its loud and a hard soundin knock you may have a rod knockin if its light soundin it could be a noisy lifter overheating or too low of octane in uur gas
- 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.
Depends where the knocking is coming from, what sort of knock, how loud it is, what speed and whether it is load and speed dependent.
It is important to have a rough idea of the location or source of the knock in order to decide whether to dismantle or not and if dismantling what to begin checking. Even if you had the patience to make the sound heard with words it would be no substitute for an experienced person hearing it.
Also different people describe noises differently and hear them differently.
Aluminium is a common material used in such engines and it expands about seven times more than steel as it heats up and this is the principle reason why cold engine knocks can fade after warm-up and why some cold engines are silent and are noisier when hot.
Listening through a stethoscope or a large screwdriver is an aid to locating the area of the knock. A load dependent knocking indicates piston or connecting rod problems and if the noise becomes louder and more harsh on load or as the speed increases it signals trouble sooner rather than later
constant heavy knock that gets louder and faster with increased rpm
possible big end bearing failure
if it just happened as you drove over the gutter and it knocked could be a suspension part loose
ok what that means is most likely ur oil pump is not pumping oil to the pistons and i hate to tell u this but even if u change the oil pump once that knocking sounds when u hit the gas and gets louder ur engine is on its way out there is nothing u can do to fix that engine its on its way to car heaven lol. take it to gershow car& recycling and get like 435 dollars for it. sorry to tell u that.
Hello, this could be a very big problem. I would first off and check that your oil level is fine. Next, the bearings on your rods or rod bearings may have been "thrown" causing this internal knock and this can be a cataclysmic problem which will lead to engine problems. This knock can also be your valves tapping and this can be from a stuck lifter, to bad valve lash, or a warped camshaft. An engine can also knock from a cooling system problem. Your engine can knock from improper timing which causes pre detonation of a spark. The list can continue from a bad oil pump not supplying oil to your system, to a cooling system failure, to no oil, to bad fouled spark plugs, to a thrown rod bearing, to a bad valve or stuck lifter. So, what does this all mean you may ask. If you do not have a friend who is mechanically savy I would absolutely have this looked at by a professional mechanic. I would first however to check your oil and coolant level before this. By the sound of the noise increasing with an increased load you may have a big problem. I hate being the bearer of bad news but at least you caught the problem now before it came a bigger problem. I hope this fixes your problem and I hope you get the problem fixed!
Sometimes collapsed lifters or loose rocker arms can cause knocking sounds in an engine. However, the fact that there was a possible loss of oil pressure and that the knocking gets louder as the rpm's increase, would indicate that there is damage to a connecting rod bearing and possibly the crankshaft. If the latter is the case you are looking at a fairly substantial repair bill.
I think you need to know the difference between a knock and a ping. But, Going by what you are saying I need a couple of answers. Does this knock exist at an idle and gets louder as you raise the rpms in neutral? When did you last change engine oil and did this knock exist then? Ok, The easy part first. Drain your oil into a clean pan. and look for metal flakes or particles. Drag a magnet through it if you have one. There should be no metal and all that glitters is not gold. There should be nothing at all in the oil. Look at the drain plug, Some are magnetized. Let me know what you find. Ned
×