My 1998 buick century is knocking, oil level is good and the knock gets louder when pressing the gas

Having owned and worked om a few Buick's , it is probably a Rod bearing . expensive job .

Sounds like a rod bearing knock.

Sounds like a tapping maybe lifter. Maybe valve check under valve cover.

try to change the oil with a high velocity, like 20-50, see what going to happen. If the problem still persist, then next step is check the timing if is right. Also check your knock sensor.

the drive band is going out it will stop running pretty soon

Hello, With so little information, I would HAVE to assume that this is a rod knock. Does it make noise in neutral too? Or only when you drive it. Try to put it in neutral and step on the gas....Does it still knock? A rod knock means you need to rebuild that motor. A rod knock can usually happen from beating on the car or a timing belt slipped a couple of gears. I would check your engine oil level, not transmission. Because low levels of engine oil can create this sound too. Good luck and feel free to write me back with much more detail so that I can further assist you.

Most vehicles are designed to run on 87 octane, unless specified different in the owners manual. The knock sensors on your engine will detect an engine knock and advance or ****** the timing accordingly. If your engine is spark knocking, your "Check Engine" light should be on detecting a faulty knock sensor, hope this helps, Gary

SOUND LIKE PISTON RODS.LOW OIL LEVEL OR FAULTY OIL PUMP.DUE TO LACK OF OIL TO ROD BEARING CAUSING BEARINGS FAILURE.YOU WILL GET ROD KNOCK MEANING ENGINE DAMAGE.

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!