February 11: Recall: GMC Sierra 1500 Chrome Grille Deflectors Detach recalls | 5 days ago January 26: Shift to Park Lawsuit Transferred to Tennessee news | 21 days ago January 19: GM 6L90 Transmission Failures Seem to Be Over investigations | 28 days ago January 18: GM L87 Engine Failures Investigated in Nearly 877,000 Vehicles investigations | 29 days ago December 19: GM Transmission Class Action Lawsuit Update: Appeals Court Ruling news | 59 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)
![2003 GMC Sierra 2500 engine problems](http://cdn.carcomplaints.com/img/v1/categories/engine.png)
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