Are there any problems with the GMC knock sensor?
When problems arise with them, the vehicle may seem to be running okay, but the performance levels may be down and there is a possibility that incorrect timing could damage the engine over time. When GMC knock sensor problems are detected, they should be fixed at the earliest.
Why does my GM engine make a knocking noise?
by Russell Wood. The knock sensor on your GM engine is designed to sense detonation in the engine that causes a knocking noise from an improper air/fuel/spark ratio. The sensor takes that information and sends it to the computer, which in turn retards the timing on the engine to fix the problem.
What is the knock sensor code on a 2004 Silverado?
I have a 2004 silverado with the 5.3l vortec. Check engine light is on with code P0327 (knock sensor 1 circuit low). Before I take off the intake and replace it, I was wondering if someone could tell me what steps to do to verify it’s the actual sensor itself and not something else.
What happens when a shop knock sensor fails?
A failed knock sensor will register a trouble code and illuminate the Check Engine lamp (CEL), although some engines will require multiple failure cycles before storing a code. Knock sensors don’t fail often, but if you suspect this problem, it’s one you need to move on quickly to head off engine damage. SHOP KNOCK SENSORS.
Are there any knock sensor problems on GM trucks?
Knock Sensor Problems on GM Vehicles. Knock sensor problems are common on 1999-2007 Chevy Silverado, Express Van, Tahoe and Suburban trucks. Of course, this means that the GMC Sierra and Yukon of the same years have the same issues.
What kind of ignition knock sensor do I Need?
An ACDelco GM Original Equipment Ignition Knock (Detonation) Sensor monitors the engine for pinging or spark knock, and is a GM-recommended replacement for your vehicle’s original component.
A failed knock sensor will register a trouble code and illuminate the Check Engine lamp (CEL), although some engines will require multiple failure cycles before storing a code. Knock sensors don’t fail often, but if you suspect this problem, it’s one you need to move on quickly to head off engine damage. SHOP KNOCK SENSORS.
Where are the knock and Ping sensors located?
It’s a piezoelectric automotive sensor that produces a small voltage signal when it hears internal engine noise that we often call knock and ping. This is why the location of the two sensors is a problem. In order to hear the engine noise reliably the sensors are buried under the intake manifold.