2018 Chevrolet Express 3500

The 2018 Chevrolet Express 3500 is a full-size van known for its practicality and durability, often used for commercial purposes or large families needing ample cargo and passenger space. While appreciated for its ruggedness and straightforward design, it also has some commonly reported issues. Engine options for the 2018 Express 3500 include a 4.3L V6 (276 hp, 298 lb-ft torque), a 6.0L V8 (341 hp, 373 lb-ft torque), and a 2.8L Duramax Turbo-Diesel (181 hp, 369 lb-ft torque). Transmission options include a 6-speed automatic for gasoline engines and an 8-speed automatic for the diesel engine. Drivers often like its straightforward design, reliability, and massive cargo space, but some complain about the outdated design, fuel economy, and lack of modern tech features.

Engine

4.3L V6

• No Issues Found

6.0L V8

• Oil Consumption
  • Description/Symptoms: Some owners have reported excessive oil consumption, requiring frequent top-offs between oil changes. Symptoms include the need to add oil every few thousand miles, blue exhaust smoke (especially on startup), and potential engine knocking if oil levels get too low.
  • Solution: Depending on the cause and severity, solutions range from replacing PCV valve, to replacing valve stem seals or piston rings. In severe cases, a complete engine rebuild or replacement may be necessary.
  • Estimated Cost to Fix: $200 - $5,000+
• Lifter Failure
  • Description/Symptoms: Some owners have reported valve lifter failure. Symptoms include ticking noises, misfires, and rough engine idling.
  • Solution: Replacing the lifters, and potentially camshaft if damaged.
  • Estimated Cost to Fix: $1,500 - $3,000+

2.8L Duramax Turbo-Diesel

• Diesel Exhaust Fluid (DEF) System Issues
  • Description/Symptoms: Problems with the DEF system can cause warning lights, reduced engine power, and potential engine shutdown. This can be caused by faulty DEF sensors, DEF fluid quality issues, or failures in the DEF pump or injector.
  • Solution: Diagnosis and repair of the specific DEF system component that is failing. This could include flushing the DEF system, replacing sensors, pumps, or injectors.
  • Estimated Cost to Fix: $200 - $1,500+

Transmission

6-Speed Automatic (Gasoline Engines)

• Harsh Shifting
  • Description/Symptoms: Reports of harsh or erratic shifting, particularly between gears, especially 1st to 2nd gear and 2nd to 3rd gear, can occur. The transmission might hesitate before engaging a gear, or shift abruptly, leading to an uncomfortable driving experience.
  • Solution: In some cases, a transmission fluid flush and filter change can alleviate the problem. If the issue persists, valve body repair or replacement may be necessary. In severe cases, a transmission rebuild or replacement might be required.
  • Estimated Cost to Fix: $200 - $3,500+

8-Speed Automatic (2.8L Duramax Diesel)

• No Issues Found

Suspension

• Leaf Spring Sag/Failure
  • Description/Symptoms: The heavy-duty leaf springs in the rear suspension can sag over time, especially if the vehicle is consistently used to carry heavy loads. Symptoms include a lower ride height in the rear, reduced load-carrying capacity, and potential handling issues. Cracking or breaking of the leaf springs may also occur.
  • Solution: Replacing the leaf springs with new or upgraded heavy-duty springs.
  • Estimated Cost to Fix: $500 - $1,500+

Electrical

• Battery Drain
  • Description/Symptoms: Excessive battery drain can lead to difficulty starting the vehicle or a completely dead battery. This can be caused by parasitic draws from aftermarket accessories, faulty electrical components, or a failing alternator.
  • Solution: Diagnosing and repairing the source of the parasitic draw. This may involve testing and replacing electrical components, repairing wiring harnesses, or replacing the alternator.
  • Estimated Cost to Fix: $100 - $500+
• Sensor Failures
  • Description/Symptoms: Various sensors, such as the ABS sensor, MAF sensor, and O2 sensor can fail. Symptoms include warning lights, poor engine performance, or incorrect readings.
  • Solution: Replacing the faulty sensor.
  • Estimated Cost to Fix: $100 - $300+ per sensor

Exterior

• Side Door Latch Issues
  • Description/Symptoms: The side door latch can sometimes become difficult to open or close properly. The door might not fully latch, leading to safety concerns.
  • Solution: Replacing the door latch mechanism.
  • Estimated Cost to Fix: $150 - $400+

Interior

• HVAC Blower Motor Failure
  • Description/Symptoms: The HVAC blower motor can fail, resulting in no air blowing from the vents, or intermittent operation. This can affect heating and cooling performance.
  • Solution: Replacing the blower motor.
  • Estimated Cost to Fix: $150 - $300+
• Seat Discomfort
  • Description/Symptoms: The seats in the Express van are known for being uncomfortable on long trips.
  • Solution: There is no factory solution. Some owners replace the seats with aftermarket seats.
  • Estimated Cost to Fix: $500 - $2,000+

Recalls

• Recall N212343250
  • This is a recall for loss of Power Steering Assist.

Summary

The 2018 Chevrolet Express 3500, while a capable and practical vehicle, does have some common issues. Engine problems like oil consumption (especially in the 6.0L V8) and DEF system issues (2.8L Duramax) can lead to moderate to high repair costs. Suspension issues such as leaf spring sagging or failure are also common. Electrical issues can range from minor sensor failures to more significant battery drain problems. Transmission problems, such as the 6-speed’s harsh shifting, can also be costly to repair. Overall, prospective buyers should be aware of these potential problems and factor them into their purchasing decision, especially if considering a high-mileage vehicle.