Based on nothing other than your brief description of your engine failure, I will explain 1 possible scenario. You may have had a head gasket failure. When coolant mixes with oil it effectively reduces it's lubricity and high friction areas such as the connecting rod bearings may be compromised. Once even a drop of coolant gets pumped between the connecting rod bearing, and the crankshaft journal the bearing may bind up which is known as a spun bearing. When the bearing is out of place it is no longer working in sync with the rod, or the rest of the engine for that matter throwing the entire rotating assembly out of balance. The vibrations would have been immediately felt, and possibly heard in the form of rod knock, as the connecting rod was misaligned causing it to hammer into the cylinder wall. With in a short period of time, could be seconds, the connecting rod is going to break, sending bits of it, and other sheared engine internals in every direction. Since the engine is spinning at a certain RPM when this occurs, any one of those broken pieces could crack, or even smash through the engine block at a high velocity, causing your oil to spill out onto the pavement.
Look over the entire engine for any loose parts. Listen to see where the noise is coming from. The noise could be anything from a loose bolt to an engine going bad.
It depends on what is making the noise.
most likely you have a loose bearing.
Sounds like a loose timing chain.
Loose sub frame mounts, broken motor mount. engine misfire. broken transmission mount.
A 2006 Kia Sedona will exhibit a growling noise from the engine if the serpentine belt is loose. It can slip against the pulleys and produce a persistent growling noise.
loose exhaust
There could be numerous reasons why a Suburban is making engine noise at start up. It could be anything from a blown gasket to a spark plug. A mechanic will be able to find out the cause of the noise.
A possibility may be a loose catalytic converter shield, or loose muffler hanger or clamp. Usually a noise like this is caused by something that is loose and vibrating. These issues are usually not complicated or expensive to fix. If you're talking about the engine making rattling noises, the timing may be off, or it may be running too hot. Also, make sure you're using gas with the proper octane for your car. An engine noise like this is called "detonation". Detonation can cause engine damage if left untreated long enough.
no,if it is normal functional sound.if it is grinding or making some other kind of noise then there is definitely an issue.
You shouldn't worry about the noise it make. You should be worried more about the damage it's going to cause. Get it fix if not to late.
If the 1999 Suburban noise is a sort of loud banging noise, the problem could be that the engine have jumped time. Jumping time would cause the noise and jerking in the engine.