2001 Chevrolet T6500

The 2001 Chevrolet T6500 is a medium-duty truck designed for commercial applications. Engine options included the Caterpillar 3126 diesel engine with a range of horsepower options from 175 to 330 hp and varying torque outputs depending on the specific configuration, as well as the gasoline-powered Vortec 8.1L V8 engine, offering around 340 horsepower and 455 lb-ft of torque. Transmission options were typically Allison automatic transmissions or manual transmissions, depending on the intended use. Owners often appreciate the T6500’s robust build and workhorse capabilities, while common dislikes include its age-related maintenance needs and fuel consumption, especially with the gasoline engine.

Engine

Caterpillar 3126 Diesel

• Injector Failure
  • Description/Symptoms: Hard starting, rough idling, black smoke, decreased fuel economy, and loss of power are all common symptoms.
  • Solution: Replace the faulty injectors with new or remanufactured units. It’s often recommended to replace all injectors at the same time for consistent performance.
  • Estimated Cost to Fix: $1,500 - $3,000+ depending on the number of injectors replaced and shop labor rates.
  • Recalls: None Found
• Turbocharger Failure
  • Description/Symptoms: Whining noises from the turbo, loss of power, black smoke, and potentially excessive oil consumption.
  • Solution: Replace the turbocharger assembly. It’s crucial to diagnose the cause of the failure (e.g., oil starvation, foreign object damage) to prevent recurrence.
  • Estimated Cost to Fix: $1,000 - $2,500+ depending on the turbocharger model and labor rates.
  • Recalls: None Found

Vortec 8.1L V8 Gasoline

• Intake Manifold Gasket Leak
  • Description/Symptoms: Coolant leaks, rough idle, misfires, and potential overheating.
  • Solution: Replace the intake manifold gasket.
  • Estimated Cost to Fix: $300 - $700+ depending on labor rates.
  • Recalls: None Found
• Exhaust Manifold Bolts Breakage
  • Description/Symptoms: Exhaust leaks, ticking noises, and potential loss of power.
  • Solution: Remove broken bolts (which can be difficult) and replace with new, high-quality bolts. May require manifold replacement if damaged.
  • Estimated Cost to Fix: $200 - $1,000+ depending on the severity of the damage and labor rates.
  • Recalls: None Found

Transmission

Allison Automatic Transmission (Specific Model Varies)

• Shifting Problems/Slipping
  • Description/Symptoms: Delayed shifting, harsh shifting, slipping between gears, or failure to shift.
  • Solution: Diagnosis can involve checking fluid levels and condition, inspecting wiring harness, and scanning for diagnostic trouble codes. Repairs may range from replacing the transmission filter and fluid to overhauling the transmission or replacing the entire unit.
  • Estimated Cost to Fix: $100 (fluid/filter) - $4,000+ (rebuild/replacement)
  • Recalls: None Found
• Torque Converter Failure
  • Description/Symptoms: Shuddering at low speeds, stalling, and poor acceleration.
  • Solution: Replace the torque converter. It’s recommended to flush the transmission cooler lines to remove any debris.
  • Estimated Cost to Fix: $500 - $1,500+ depending on labor rates.
  • Recalls: None Found

Manual Transmission (Specific Model Varies)

• Clutch Failure
  • Description/Symptoms: Slipping clutch, difficulty shifting, and unusual noises from the clutch area.
  • Solution: Replace the clutch disc, pressure plate, and throw-out bearing. It’s often recommended to resurface or replace the flywheel as well.
  • Estimated Cost to Fix: $500 - $1,500+ depending on labor rates.
  • Recalls: None Found

Suspension

• Leaf Spring Sagging/Breakage
  • Description/Symptoms: Vehicle leaning to one side, rough ride, and potential loss of load-carrying capacity.
  • Solution: Replace the worn or broken leaf springs.
  • Estimated Cost to Fix: $500 - $2,000+ depending on the leaf spring type and labor rates.
  • Recalls: None Found
• Worn Shock Absorbers
  • Description/Symptoms: Excessive bouncing, poor handling, and increased stopping distance.
  • Solution: Replace the shock absorbers.
  • Estimated Cost to Fix: $200 - $600+ depending on the shock absorber type and labor rates.
  • Recalls: None Found

Electrical

• Wiring Harness Issues
  • Description/Symptoms: Intermittent electrical problems, such as lights flickering, gauges not working, or starting problems.
  • Solution: Inspect the wiring harness for damage, corrosion, or loose connections. Repair or replace damaged sections of the harness.
  • Estimated Cost to Fix: $100 - $1,000+ depending on the severity of the problem and labor rates.
  • Recalls: None Found
• Alternator Failure
  • Description/Symptoms: Dimming lights, dead battery, and warning light on the dashboard.
  • Solution: Replace the alternator.
  • Estimated Cost to Fix: $200 - $500+ depending on the alternator type and labor rates.
  • Recalls: None Found

Exterior

• Corrosion
  • Description/Symptoms: Rust formation on the frame, body panels, and undercarriage.
  • Solution: Remove rust, repair damaged areas, and apply rust prevention coatings.
  • Estimated Cost to Fix: $100 - $1,000+ depending on the severity of the rust and the extent of the repair.
  • Recalls: None Found

Interior

• HVAC System Problems
  • Description/Symptoms: Inconsistent heating or cooling, blower motor failure, and refrigerant leaks.
  • Solution: Diagnose and repair the HVAC system. This may involve replacing the blower motor, compressor, or other components.
  • Estimated Cost to Fix: $100 - $1,000+ depending on the problem and labor rates.
  • Recalls: None Found

Summary

The 2001 Chevrolet T6500, being an older commercial vehicle, is prone to age-related issues. The severity of these issues can vary depending on the truck’s usage and maintenance history. Engine problems, particularly with the Caterpillar 3126 diesel, can be expensive to repair. Transmission issues can also be costly. Suspension and electrical problems are common. Overall, potential buyers should thoroughly inspect the vehicle and be prepared for potential maintenance and repair costs.