Sounds like preignition. A higher octane gas might help
I have a knocking noise near the water pump pully or idler arm pully on my 94 chevy cavalier 2.2 motor when its at idle, if i give it more gas the noise will go away do you know what this could be? i took off the tension idle pully and checked the bearing and it was fine.
I have a 1997 Chevy Malibu with 176k on it. Never had a new engine or anything, runs like a champ. It has been making a knocking noise when its cold.(until car is warm) for a long time now. It still makes a little one while at idle, not loud or can even really be heard though.
Sorry, disregard this question, I didn't word it properly.
what would cause a knockings noise in my boat 3560- 2004 transmission when in idle goes away when you give it gas
I just took my car into to shop and the problem is the EGR Valve.
17 TO 19 INCHES AT A IDLE. 18 to 21 inches at idle, and the above answer is close enoungh too.
I had the same problem when I cleaned and replaced my KN filter after 3 months of use. It was caused by too much oil on the filter element. It fowls the knocking sensor on the engine and causes the knocking noise at idle. I removed the filter and cleaned it. Then I very lightly oiled it and replaced it. The knocking went away in about a week. If it doesn't, you might have to replace the sensor. I'm not a mechanic... this is all the help I can give you. Good luck!
If its automatic check the flywheel (flex plate) its probably cracked.
NO. There conclusion was that it is a NORMAL problem with the 6.0L and 5.3L engines and that it will not do any HARM are cause a early engine problem as long as you let the engine idle and warm up to running temperature before driving.The noise that you hear are the PISTONS slapping in the cylinders when engine is cold. As the engine warms up the piston expand and tighten up in the cylinders and the noise goes away. That is SAD. For a company such as Chevy to do NOTHING about that problem. I own a 2000 6.0L too, and it is also noisy on start up.
Idle is set by the computer.
For non fuel injected models, on the side of the carburetor there is an idle screw. Turning the screw slightly will raise the idle on your Chevy truck.
Where is the idle speed motor located at on a 1995 chevy blazer?
Depends on where the noise is whats making the noise. Can you be more descriptive of where and what?
The IDLE is controlled by the computer. THERE IS NO ADJUSTMENT.
Any alternator will charge at idle.
There are a number of reasons why an engine would knock when you idle the vehicle. It could be your motor mounts. You may also need oil.
The idle speed on a 1987 Chevy Celebrity is controlled by the engine computer, there is no way provided to adjust it.
idle speed for a 99 Tahoe
Check the motor mounts.
Mine and everyone I have hears makes a knocking sound at idle, I wouldn't worry about it unless it does it through the whole rpm or is really lowed
The idle speed is set at the factory and is NOT adjustable.
The idle air control valve on the Chevy Colorado actually controls the speed of your engine's idle. The valve is sometimes called the idle speed control valve.