sell it
Cant you just ask the people at the car place?
I have a 1997 Chevy Malibu with 176k on it. Never had a new engine or anything, runs like a champ. It has been making a knocking noise when its cold.(until car is warm) for a long time now. It still makes a little one while at idle, not loud or can even really be heard though.
An engine knock ia almost always very serious. Stop drivng this car and take it to a professional. Not a repair for a novice.
The knocking noise in or around the catalytic converter comes because something is broken. It could be a pipe or a strap or something else. Fix it before you leave your exhaust pipe on the road.
You will have to replace it. The bearings are worn out in the blower motor.
Short of a complete engine rebuild, you could try a heavier viscosity synthetic oil. However, this is just a temporary fix at best. If you are hearing excessive lifter/rod noise, the engine is in need of major service.
Sorry bud but that means that you have what's called a " Rod knock", one or more of the main and or the rod bearings have gone away, need to break that engine down to fix it. jr
It sounds like a connecting rod bearing going out. The only fix it to have the motor rebuilt before it goes out. If you wait until the engine blows you will have to buy another engine because of the damage that will be done.
If it is deep in the engine, the engine may need repaired/replaced.
Internal knocking inside the engine is almost always a sign of worn bearings. Crankshsft, or rod bearing would be my guess. The fix, if it is internal, is overhaul. Before opening it up, make sure the knocking is indeed coming from inside the engine.
Usually when a car is making a knocking noise it is a very bad thing, which usually leads to engine failure and throwing a rod. I've had this same problem with my intrepid and was able to fix this by replacing a worn bearing on the crank. This is a deep engine job so make sure you keep track of your parts and do it safe and plan to spend 4+ hours on it.
I have found that the noise that you are hearing are due to a belt adjustment that your car needs to have done - that is if you have a 2006-2008. Mine is making that noise but the dealer that I got it from are having a hard time reading the tsb on it so that they can properly fix the noise.