April 5: GM Brake Master Cylinder Failure Lawsuit Names 5 Models news | 18 days ago
March 24: GM Recalls Chevy and GMC Trucks With Dual Fuel Tanks recalls | 30 days ago
March 1: GM Engine Failure Class Action Lawsuit Begins news | 53 days ago
February 28: GM Lifter Lawsuit Update: Motion to Sever Denied news | 54 days ago
February 21: GM Brake Booster Vacuum Pump Failures Cause Lawsuit news | 61 days ago
4.0
definitely annoying- Typical Repair Cost:
- $300
- Average Mileage:
- 111,150 miles
- Total Complaints:
- 1 complaints
Most Common Solutions:
- replace knock sensors under intake manifold (1 reports)
engine problem
Helpful websites
- No one has added a helpful site for this 2003 Sierra 2500 problem yet. Be the first!





A D V E R T I S E M E N T S
Check engine light on - code reader says knock sensor. It's a common problem and easy to fix.
- Tttt D., abcd, DE, US