0
What causes engine to knock after start you start it it's quiet then it knocks a few secs then quiet again this is not a everyday thing and only in the morning?
Wiki User
∙ 16y ago
I'm specifically addressing late model cars/trucks. Because the EPA has very strict limits on the amount of un-burned gas that can enter the atmosphere, most modern vehicle's fuel control systems are programmed to heat the engine up quicker, thus reducing the amount of un-burned gas entering the atmosphere. The combination of how the engine control's the fuel/oil/air flow into the cylinders causes the engine to knock a little until the cylinder is warmed up so that a greater percent of gas is burned up. This is why on colder mornings you notice the knock more than on warmer days. Yes, in effect, you're getting less lubrication to the engine which can't be good overall. Your engine may die quicker, but you won't die from air pollution. It's always good to let the car sit at idle for a minute or two
Wiki User
∙ 16y ago
Add your answer:
Earn +20 pts
After replacing timing belt engine knocks on Camry?
Most likely you did not align properly the mark, it causes the engine to have wrong timing as result the engine knocks.
Dodge Durango engine knocks?
Have it looked at by a mechanic.
How does water effect erosion?
The water loosens the rocks. Then it knocks over other rocks. Then that causes an erosion
Car engine knocks when idling in a 95 neon what does it mean?
you shouldn't drive a 95 neon
Why does your engine knock on a dodge ram 1500?
If your engine knocks than that can be a really bad thing, have you recently ran your truck without oil?
What happens when you punch someone in the chin?
When a person is hit hard on the chin (button) it causes their brain to rattel which knocks them out.
How does freak wake up max every morning?
he comes and knocks on the bulkhead door and says that they have dragons to slay and damsels in distress to save
Why does car Engine or belt or anything make intermittent knocks when driving above 50kmphs?
Auto ignition of fuel
When I replaced the intake manifold on my Lincoln townacar the engine knocks real load any ideas what this could be?
I replaced a 1995 town car intake it also knocks now. Not sure. I'll post later when I find out why.
My F150 knocks and blows white smoke but still has power what causes white smoke?
White smoke coming out of a vehicle means you need to either get your oil changed or the oil you have is too small of a weight. ---------------------------------------------------------------------------------------------- If your engine is warmed up and blowing white smoke , it sounds like engine coolant is getting into an engine cylinder from a bad head gasket , or a warped or cracked head
What is knox sensor?
If you are referring to a knock sensor, then it is simply a sensor made to shut down the engine if undue knocks are recognized by the sensor.
Who knocks over the sandcastles?
Roger knocks over the sandcastles.
