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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
Knock sensor code
Hello. Knock sensors play a large roll in how the PCM (powertrain control module) times the spark. If excessive knock is present from the combustion cycle, the knock sensor will retard timing and attempt to correct it. The opposite is...
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
knock sensor
Hello. To understand what is going on, lets discuss these two components and how they work. Harmonic balancers are essentially vibration dampeners in the engine that counteract the torque caused vibrations coming from the crankshaft. Every time the combustion cycle...
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
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
Steering wheel knocking sound when stationery
Hi there. If the wheel is rotating when the steering is turned and you hear a knocking sound, then this is the sound of a constant velocity (CV) shaft bearing failing. Remove the front wheels and check around the CV...
Question
Knocking/ Pining/ Dieseling noise
Hi there. If your Tacoma is a 4x4, then check the transfer case and see if that is where the noise coming from. If it is, then the chain in the transfer case is slipping and needs replaced or repaired....
Question
My system says there is water in the fuel
Hi. Yes, water in the fuel will cause knocking. I would advise doing a fuel system maintenance - drain the fuel system all the way to the tank, including the tank. This will get rid of any water and contaminated...
Question
engine knocking
You are correct in that the knocking sound, depending on how severe it is may unfortunately be rod bearings that have failed. As you know, this is usually due to excessive wear or not enough oil lubricating the connecting rod...
Question
Knocking when driving
An engine can ping (or knock) due to an improper combustion process. An ignition knock is the result of combustion occurring too early. Early combustion can occur from carbon buildup inside the combustion chamber, a lean air/fuel mixture, and advanced...
Question
Car is making a knocking noise. 2006 Toyota Corolla
Hi - your engine could be knocking from bad fuel, ignition problems or bad bearings. Check your engine oil level first - a low oil level could be the most damaging. If the Check Engine light is illuminated, have the...
Question
Knocking sound when idling or stopped 1993 Chevrolet Lumina APV
Hello - the rhythmic knocking you hear could be something driven by the serpentine belt (i.e. AC compressor) or the belt itself. It is also possible that this an internal noise - like the timing chain, which is immediately behind...
Question
Engine won't run - 2012 Buick Lacrosse
Hi there. Having to use a breaker bar, to free the engine from being locked-up, does not sound promising. Removing the serpentine belt, would eliminate an accessory component (ie; seized alternator) that may be preventing the engine from turning over....
Question
Loud knocking noise and then truck shuts off while driving 2002 Ford F250 Turbo-diesel
Hi - given your mileage, and your high mileage, I suspect this engine knocking could be a problem caused by worn connecting rod or crankshaft bearings; possibly to the point of connecting rod failure. Your mention of light knocking before...
Question
Engine knock and low engine power
Hi there: The problem with trying to diagnose a ticking issue remotely is the fact that it could be multiple; yet completely different mechanical systems that are causing this issue; ranging from the timing chain being loose, to fuel system...
Question
Engine knocking 1999 Dodge Ram 1500
Hello - your description may cover multiple issues. The engine misfire could be caused by bad spark plugs, coils or even a fuel supply problem The knocking noise may well be a worn or damaged connecting rod or crankshaft bearing....

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