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1991 GMC C1500 1991 Sierra SLX Extended Cab Pickup

Repair services & inexpensive new parts for 1991 GMC C1500 1991 Sierra SLX Extended Cab Pickup with 4.3L 262Cu. In. V6 GAS OHV Naturally Aspirated engine.

The 1991 GMC C1500 Sierra SLX Extended Cab Pickup is a practical and durable vehicle, known for its robust 4.3L V6 engine. This naturally aspirated, rear-wheel-drive truck offers a balance of power and efficiency, making it suitable for both everyday driving and light-duty hauling. With a straightforward design and reliable performance, it's a popular choice among enthusiasts for restoration and modification projects.

Common Issues

  • Transmission problems, particularly with slipping or hard shifts.
  • Fuel pump failures due to wear over time.
  • Issues with the ignition system, including faulty ignition modules.
  • Rust in the body, especially around the wheel wells and undercarriage.

Maintenance Tips

  • Regularly check and replace the transmission fluid to prevent slippage.
  • Inspect and clean the fuel injectors regularly for optimum performance.
  • Keep the ignition system components, such as spark plugs and wires, in good condition.
  • Regularly wash and wax the vehicle to prevent rust and corrosion.

Typical Repair/Ownership Cost Ranges

  • Transmission repairs can range from $400 to $1,200 depending on severity.
  • Fuel pump replacement typically costs between $200 and $500.
  • Ignition system repairs generally range from $100 to $300.
  • Bodywork for rust removal and repainting can range from $500 to $2,000.

Buying Advice

  • Inspect the transmission for any signs of slipping or hard shifts.
  • Check for any rust, especially in common areas like the wheel wells.
  • Ensure the fuel pump and ignition systems are functioning correctly.
  • Verify the vehicle history for any major repairs or accidents.

FAQ

  • What is the fuel economy of the 1991 GMC C1500 Sierra SLX? The fuel economy typically ranges around 15-18 mpg depending on driving conditions and maintenance.
  • How often should the oil be changed? It's recommended to change the oil every 3,000 to 5,000 miles for optimal engine health.
  • What type of oil is best for this model? A high-quality 10W-30 oil is generally recommended for this engine.
  • Are parts readily available for this model? Yes, parts are relatively easy to find due to its popularity and longevity.
  • What are some signs of a failing fuel pump? Signs include difficulty starting, sputtering at high speeds, and loss of power under load.
  • Can this truck be used for towing? Yes, but it's best suited for light to moderate towing loads.

Have Questions about GMC C1500 1991 Sierra SLX? Ask the assistant for questions about mileage, performance, repairs, parts, recommended maintenance and more.


Make: GMC
Model: C1500
Trim: Sierra SLX Extended Cab Pickup 2-Door
Year: 1991

Quick Info

Fuel: GAS
Aspiration: Naturally Aspirated
Engine Displacement: 4.3L
Engine CC: N/A
Engine CID: 262
Engine Block Type: V
Cylinder Type: OHV
Cylinders: 6
Drive: RWD
Body Type: Extended Cab Pickup
Doors: 2

Repair services & inexpensive new parts for 1991 GMC C1500 1991 Sierra SLX Extended Cab Pickup with 4.3L 262Cu. In. V6 GAS OHV Naturally Aspirated engine.