Why does a cold start sound so loud?
The cold start is one of the greatest pleasures for any petrolhead to experience, but why does a car always sound especially fruity after it has been sitting dormant for a while, especially in cold conditions? If playback doesn’t begin shortly, try restarting your device.
Why does my car rattle on cold start?
If you hear engine rattle noise from your engine on cold start, and the engine rattle noise goes away after a few seconds, and the engine rattle noise comes from the side of the timing cover we will explain what could cause that. Most new engines nowadays are equipped with timing chain.
When does sound start for the first second?
Then the sound is fine, until there’s no sound for about 30 seconds. Then it will happen again, when I want to play something, it will start to play muted for the first second or two, then continue normally.
Why do I miss the first two seconds of sound?
This laptop is new, installed a few days ago with W10 Home 64. Whenever I want to play something with sound, no matter if it’s a YouTube video on Chrome, Edge or a desktop app, about the first two seconds of sound will be silent, thus missed, so I have to rewind or replay whatever I was playing to hear it again.
Why does a V10 sound so loud in a cold start?
V10s sound especially violent during a cold start. To start with, a car’s ECU decides that the engine has to idle higher when the engine is cold to stop it from stalling. This is programmed into the ECU via a start-up map, which allows a richer air/fuel mixture to enter the cylinders.
What causes the kocking sound on start-up that disappears?
Depending on how cold it is or I guess long it’s sitting, I’ve heard it do it for about 30 seconds and then stop. Sometimes turning the steering wheel will cause it to stop or quieten it up until it completely disappears. Once it disappears, u never hear it for the rest of the day. As for the flex pipe, just look under the car at it.
Why does a car start so loud in the Cold?
When it is cold, more fuel is added to the air/fuel mixture to make up for the lack of natural vaporisation. So the AFR (air-fuel ratio) is seen by the ECU to be leaner than usual (below the Stoichiometric ratio of 14.7:1) so it compensates for this with extra fuel to make up for the unburned fuel due to the cold.
What kind of noise does a car make when it starts up?
It’s like an extremely loud rattling/clanking noise. It doesn’t do it when cranking, it’s only when the car first starts up (more noticeable on cold start-up). It’s also not every time you start it, only when it’s been sitting awhile (such as over night). I’m not exactly sure what it is but it’s pretty loud.