Why does the GMC knock sensor need to be replaced?
Why does the GMC knock sensor need to be replaced?
If all the tests are okay, the knock sensor needs to be replaced. The GMC knock sensor is used by the vehicle’s computer to optimize the ignition timing so as to provide for the best possible engine performance.
When does GMC Yukon engine hesitate during acceleration inspection?
GMC Yukon Engine hesitates during acceleration Inspection at your home or office. Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM.
Is there a knock sensor problem on my Hummer?
In fact, if you have a 4.8 L 5.3 L or 6.0 L in any General Motors vehicle, including a Hummer or Pontiac, you will probably run into a check engine light indicating a defective knock sensor at some point.The check engine light registering a code P0332 or a P0327 is often the first sign you have this common problem.
What are the codes for the knock sensor?
Eventually this turns on the check engine light and sets the codes P0332 and P0327. Note that often either one or the other code will set. Regardless if one or both codes are set, not only should the two original knock sensors be replaced, but you should also replace the harness.
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.
Do you need to replace the knock sensor?
Regardless if one or both codes are set, not only should the two original knock sensors be replaced, but you should also replace the harness. In fact, it will most likely shatter like glass when you attempt to disconnect it. The replacement harness comes complete with new connectors and boots.
GMC Yukon Engine hesitates during acceleration Inspection at your home or office. Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM.
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.
