2009 GMC T6500
2009 GMC T6500
Overview
The 2009 GMC T6500, a commercial truck designed for medium-duty applications, generally exhibits a robust build quality typical of its class. Reliability is a key factor for commercial vehicles, and the T6500 aims to deliver dependable performance for various vocational uses. While specific component failures can occur with any vehicle, especially after extended service, the T6500 has a reputation for solid engineering. This analysis focuses on documented common issues beyond routine maintenance, providing insights into potential areas of concern for owners and fleet managers. Understanding these potential reliability points can aid in proactive maintenance and informed purchasing decisions.
Engine
6.0L Vortec V8 (Gasoline)
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
7.8L Duramax Diesel (Isuzu)
Fuel Injector Issues
- Symptoms: Rough idle, poor fuel economy, engine misfires, check engine light.
- Solution: Replacement of faulty fuel injectors.
- Cost: $800 - $1500 per injector
EGR System Clogging
- Symptoms: Reduced engine power, black smoke from exhaust, increased fuel consumption.
- Solution: Cleaning or replacement of EGR valve and cooler.
- Cost: $500 - $1200
Transmission
Allison 1000 (Automatic)
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
Allison 2000 (Automatic)
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
Suspension
Standard Chassis
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
Electrical
Wiring Harness
Corrosion/Abrasion
- Symptoms: Intermittent electrical faults, warning lights, non-functioning accessories.
- Solution: Inspection and repair/replacement of damaged wiring sections.
- Cost: $300 - $800
Alternator
Failure
- Symptoms: Battery warning light, dimming lights, starting issues, dead battery.
- Solution: Replacement of the alternator.
- Cost: $400 - $700
Exterior
Body Panels
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
Interior
Cabin Components
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
Summary Verdict
The 2009 GMC T6500 demonstrates good overall reliability, particularly with its gasoline engine and automatic transmissions. The diesel engine, while powerful, can experience issues with fuel injectors and the EGR system, which are common to many diesel powertrains of this era and require diligent maintenance. Electrical system components like the alternator and wiring harness are potential points of failure, as expected in a commercial vehicle of this age. However, these are generally repairable. The chassis, body, and interior components are typically robust. Proactive maintenance, especially for the diesel engine’s emissions system, is recommended to ensure long-term dependability.