GMC Q&A

1999 GMC Sierra 1500 Question: Knock sensor

• Check engine lite code says knock sensor fault.Tell me more about this
  Let me know how important the knock sensors are i know they are under the intake manifold. They would be very expensive to replace. Give me some advice.

  Q&A > GMC > 2004 GMC Sierra 1500

• knock sensor
  Where is the knock sensor located, and is there more than 1?

  Q&A > GMC > 2003 GMC Sierra 1500

• WHATS IS THE KNOCK SENSOR WHATS IT DO HOW TO DO ITREPLACED MASS AIR
  WONT GO OVER 45 MISSING CODE

  Q&A > GMC > 2002 GMC Sierra 1500

• Are you sure P0137 is Bank 2 Sensor 1?
  Everywhere esle I look, this code is Bank 1 Sensor 2. You are stating just the opposite.

  Q&A > GMC > 2005 GMC Sierra 1500

• code 0496. Evaporative Emission System High Purge Flow.
  What part do I replace? Where is it?

  Q&A > GMC > 2004 GMC Sierra 1500