No. It is not normal at all. Go to a mechanic and get their opinion. Engine knocks usually signify severe damage, and driving with it will cause even more damage. Always check your oil as well. Make sure it is clean and topped off. knocking can also sometimes mean you have the wrong octane but most of the time it means your tie rods or connecting rods are worn
A knock at idle however can only be bearings, it would be beneficial to get things looked at right away,
an idling diesel engine or snoring :]
Lifters or valves.
NO it will not. If you have a knocking sound then you have trouble inside of the engine.
When the fuel in an engine cylinder ignites prematurely or unevenly to cause power fluctuations and a "knocking" sound. usually occurs when an engine is very how or improperly timed.
Engine knocking can be caused by numerous things. Having the incorrect spark plugs, carbon deposits on the cylinder walls, and being low on engine oil may all cause a knocking sound.
Engine rod? Engine bearing?
counterbalancer is bad
Bad bearing or rod
Mine did the same, mine was a motor mount.
Get it fixed.
if the engine is knocking really loud you probably need to overhaul the entire engine or get a new or used engine because loud knocking is not good
can you elaborate? engine noise? stationary/moving? ticking, tapping or a definite knocking?
The first sign that your engine has thrown a rod is a knocking sound that comes from the engine when it runs. if you pay close attention, you will notice that the knocking sound is rhythmic and increases or decreases in accordance with the engine's revolution per minute (RPM).
You'll most likely hear a knocking sound or squeaking of some kind
Possible dirty sticking valves.
This is petrol to which tetraethyl lead has been added to reduce knocking in the engine. Knocking is when combustion happens at the wrong time in the engine cycle giveing a kind of metallic "ping" sound.
When you accelerate. you are putting presure on the main engine barrens. if they are going bad. You will hear this knocking sound. I don't know how many miles you have on this engine. But that's what it sounds like. But that's not all that can make this sound. You will have to tell more about it and when it started. Did it just start all at once? or did it start and then get louder?
Could be a rod knock. Your bearings slipping in the engine.
The Hummer H2 is a 2005 SUT with the 6.0L Vortec and a Magna Charger supercharger. It runs great with plenty of power, but I'm concerned about some noise I'm getting out of it. When I first start it up, everything sounds fine. After running a mile or so, I start to get a knocking sound. I only notice the sound when idling, not when running.
Your engine probably has a vacuum leak
Locate the sound, if it is high up on the engine it will most likely be the lifters, pretty common with the 4.0, you can quiet them down by using oil additives, but if it is low it may be a wrist pin knock, this will also happen and get louder when driving, and should be dealt with immediately.
Mine and everyone I have hears makes a knocking sound at idle, I wouldn't worry about it unless it does it through the whole rpm or is really lowed
Depends on the sound of the knock. Could be main bearings or rod bearings.