Why does my car Ping when I Turn on the engine?
An engine can ping because it is too hot. This is another uneven combustion scenario that is caused by the air-to-fuel mixture “lighting off” by itself. If the cooling system does not keep the engine’s combustion chamber temperature in check, the air-to-fuel mixture will begin to spontaneously explode. This is also called “pre-ignition.”
Why do engine make knocking noise when cold started?
It’s like a clacking or grinding sound, almost like if something was touching the fan, and it gradually go away as the engine warms up until it’s running smooth. I think you may be dealing with engine sludge. It blocks passages when oil is cold, but hot oil begins to penetrate through the mess.
Why does my car make a pinging noise when I accelerate?
“Pinging” is the metallic rattling sound an engine can make when accelerating. It usually occurs when the vehicle pulls away from a stop and the engine is under a lot of load. When an engine pings, it releases pollution into the environment in the form of nitrogen oxide (NOx) and raw, unburned hydrocarbons (HCs).
What happens to the atmosphere when an engine pings?
When an engine pings, it releases pollution into the environment in the form of nitrogen oxide (NOx) and raw, unburned hydrocarbons (HCs). These two chemicals are poisonous gases that show up as yellowish-brownish in a polluted sky.
Is it normal to hear Pings in your engine?
Once again, this is perfectly normal. Modern electronics and increased tolerances in high output engines such as the LS1 put additional strains on an engine that may not have existed on a less advanced motor. This noise you are hearing could be from one of 3 sources, all of which are totally normal.
What should I do if my engine taps or pings?
In most cases, all you need to do is replace them. Its really not that hard and can be done in an hour with basic handtools. Go to www.ls1howto.com and read one of their heads/cam swap articles and just get to the section that involves taking of the valve covers and rocker arms.
When does the engine Rattle at start up?
First oil change at dealer at 2k miles. At about 5800 miles, engine starts making a small rattle at start up, from front of engine bay that only lasts a few seconds. Becomes increasingly noticeable, especially when starting remotely as you could hear it from the outside and front more so than from interior.
Why does my car make a knocking noise when I Turn on the engine?
The engine is accelerating or lugging under a load. This allows intake vacuum to suck some exhaust in; through the (EGR) valve to dilute the air/fuel mixture slightly. This lowers combustion temperatures and prevents engine spark knock.