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engine knock

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How Long Does an Automatic Timing Advance Unit Last?
The automatic timing advance unit is a component in vehicles with diesel engines. Of course gas and diesel engines both work on the internal combustion principle, but they are quite different,...
How Long Does an EGR Temperature Sensor Last?
Are you familiar with the EGR (exhaust gas recirculation) system in your car? If not, this is something all modern cars have. The purpose of this system is to greatly reduce...
How Long Does an EGR Control Solenoid Last?
In order to help reduce the amount of engine emissions cars have what is called an EGR system, which is an exhaust gas recirculation system. The way it works is that...
Symptoms of a Bad or Failing EVP Shut Off Solenoid
Common signs include poor cold start performance, the Check Engine Light coming on, and failing an emissions test.
What Does It Mean When an Engine "Knocks"?
You enjoy listening to the purr of the engine as you cruise along the highway. When you hear some strange sound coming from under your hood, you may panic. A knocking sound can be...
Symptoms of a Bad or Failing Automatic Timing Advance Unit
If your car experiences engine knock, sluggish performance, or excessive black smoke, you may need to replace your automatic timing advance unit.

Related questions

Question
Had my truck serviced, was told the issue was a knock sensor. One day later the same issue occurs with the reduced engine. 2008 Chevy Silverado 1500
Hello - your engine has 2 knock sensors. The failure of one or both of them was recognized by engine management, and power is reduced in order to avoid engine damage. I would recommend knock sensor replacement - times 2,...
Question
Low oil pressure light stop engine
This light will usually come on when one of two things are happening. Either the motor is in fact low on oil or the oil pressure sending unit is not working properly and may be producing a faulty reading. In...
Question
Car engine making sound
It's impossible to say what your engine noise is without hearing it. It could be any number of components each makes it's own trademark sound. But since you say it only makes a sound in gear, I'm going to make...
Question
My car is making a vibrating/grinding sound.
Of course it's impossible to say what an engine noise might be without hearing it, but it sounds like you may be describing a spark knock. Spark knock is sometimes called pre-ignition and it occurs when the fuel in the...
Question
Making a ticking noise as I drive and in park at idle
Without hearing the noise, it's impossible to say what it is, But I'm going to suggest that you may have a valve noise because that is a sound that most people describe as "ticking" It's is a regular sound that...
Question
As my car warms up it starts to make a knocking noise. Then stalls when I stop.
Hello. Unfortunately these are typically signs of a more serious issue. Your engine may have thrown a rod. Which means the connecting rod that hold the piston in place has broken off. The only repair is to rebuild or replace...
Question
Hello, I have a 2009 328i coupe manual with no maintenance issues. Went to start it and a hard knocking coming from the engine
BMW has had some issues with the valve lifters on that model car, so that is the first thing that leaps to mind, though most people describe the lifter noise as a "tick"rather than a knock. engine oil pressure and...
Question
Engine knock
Hello. If the engine knock started after a few cold nights then it may be possible that it is related to the engine oil. Engine oil becomes thicker at lower temperatures, which makes it more difficult to pump for the...
Question
There is an awful clunking rattling noise when the engine is running.
Hi there. There could be either the engine is having a bearing slap on the rod bearings with too much wear causing the noise or an accessory on the engine is locking up making the belt tensioner pop back and...
Question
Why is my engine knocking?
A loud knocking noise coming from the engine can be any of several issues. Having to put 5 quarts of oil in the engine means that the engine was completely empty, basically. The engine oil's main purpose is lubrication, and...
Question
Knocking noise from engine and oil seems to be full? Loud and constant what could it be?
Hello, thank you for writing in. Engine knock can be caused by several different issues. Even with the oil full, if it is not being sent to the places in the engine that need it. Low oil pressure can be...
Question
Makes a loud clunk noise when I try to start it
Hi there. Sounds like the engine may have water in the cylinder, fuel in the cylinder, or the timing chain may have broken. Try turning the engine over by hand with a breaker bar. If the engine will not move,...
Question
Amber engine light came on. Mechanic said the fault was a knock sensor.
If your engine has any kind of noise in it that can cause an engine knock then it would also set the code for the knock sensor. The knock senor is used by the computer to adjust ignition timing for...
Question
knocking noises
If the engine truly has nearly 400,000 miles, based on the symptoms you are describing, I would suspect an internal mechanical problem, one of some significance that might require rebuilding the engine. But, obviously, the source of the noise, and...
Question
Knock sensor 2000 Chevrolet Lumina
Hi - first task is to recheck what codes are still present that represent a "knock sensor failure". There may be an additional problem that has changed engine timing (worn timing chain for example) that is causing an engine knock...
Question
I hear a knocking sound coming from the engine.
Hi there. The sound could be the lifters sticking and not getting oil to them. This would be for the noise lessens as the rpm's goes up. Add 1 quart of ATF Type F to your engine oil and run...
Question
Why is my engine making a knocking noise.1997 Saturn SL2
Hello. If you know that the timing chain is off then the engine should not run. If the timing is correct but the chain is loose due to other issues then that may be the knocking noise that you are...
Question
Ford 5.4 knocking noise under load or high rev 2007 Ford E-250
Hi there - engine knocking under a load, or when "snapping" the throttle open, is usually worn connecting rod bearings. With your advanced mileage, this would not be unusual. I would recommend an engine noise inspection by a mobile, professional...
Question
It's a long noise when I'm driving ,like a clacking - hard noise under the right passenger side .Could it be the CV shaft?
Hi there. If the vehicle was driven for more than 1 mile with the engine oil at only about 2 quarts, then the bearings have burned and now are knocking. The right side of your engine now has an engine...
Question
Engine light came on. Car drives slow and stopped going in reverse. Could it be a knock sensor or is it the transmission?
Hi there. If the vehicle is driving slow and will not go into reverse, then the computer could have the engine in limp mode due to either the transmission not shifting into reverse. If there was no signs of gear...

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