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1986 GMC C3500 1986 High Sierra Cab & Chassis

Repair services & inexpensive new parts for 1986 GMC C3500 1986 High Sierra Cab & Chassis with 6.2L 379Cu. In. V8 DIESEL OHV Naturally Aspirated engine.

The 1986 GMC C3500 High Sierra Cab & Chassis is a robust and versatile vehicle, equipped with a 6.2L V8 diesel engine that provides a reliable power source for various hauling and towing needs. Known for its durability, this truck is designed primarily for work-related applications, making it a popular choice among fleet operators and those needing a dependable workhorse. Its naturally aspirated engine is straightforward in design, which can simplify maintenance and repair efforts, although it may lack some of the efficiency and power of more modern diesel technologies.

Common Issues

Some common issues with the 1986 GMC C3500 include fuel system problems, particularly with the injection pump, transmission issues, and rusting in the chassis or body. The electrical system may also present challenges due to aging components.

Maintenance Tips

  • Regularly check and change the engine oil and filter to ensure proper engine function.
  • Inspect and replace fuel filters as needed to maintain fuel system health.
  • Keep an eye on the transmission fluid levels and change the fluid according to the manufacturer’s recommendations.
  • Monitor the brake system for wear, especially if the truck is used for heavy towing.

Typical Repair/Owership Cost Ranges

Repair costs can vary widely based on the type of work needed. Basic maintenance services like oil changes can range from $30 to $100, while more significant repairs, such as transmission replacements, might cost between $1,500 and $3,000. Ownership costs, including insurance and fuel, should also be considered, especially given the diesel engine’s fuel prices.

Buying Advice (What to Inspect)

  • Inspect the engine for signs of oil leaks or excessive wear.
  • Check the condition of the transmission and ensure smooth shifting.
  • Look for rust on the frame and body, especially in the wheel wells.
  • Examine the brakes and suspension components for wear.

FAQ

What is the fuel economy of the 1986 GMC C3500? The fuel economy typically ranges from 12 to 18 miles per gallon, depending on load and driving conditions.

How often should I change the oil in this truck? It's advisable to change the oil every 3,000 to 5,000 miles or according to the manufacturer's recommendations.

What type of transmission does the C3500 have? This model is usually equipped with a manual or automatic transmission, with the choice depending on the specific configuration.

Are parts readily available for the 1986 GMC C3500? Yes, many parts are available through various aftermarket suppliers and online retailers.

What should I look for during a test drive? Pay attention to any unusual noises, shifting difficulties, or steering issues, as these can indicate underlying problems.

Is the 1986 GMC C3500 considered reliable? Yes, when properly maintained, this truck is known for its reliability and longevity.

Can I tow with this truck? Absolutely, the C3500 is designed for heavy-duty towing and can handle substantial loads.

What are some common modifications for this truck? Common modifications include upgrading the suspension, enhancing the exhaust system, and improving the braking system for better performance.

Have Questions about GMC C3500 1986 High Sierra? Ask the assistant for questions about mileage, performance, repairs, parts, recommended maintenance and more.


Make: GMC
Model: C3500
Trim: High Sierra Cab & Chassis 4-Door
Year: 1986

Quick Info

Fuel: DIESEL
Aspiration: Naturally Aspirated
Engine Displacement: 6.2L
Engine CC: N/A
Engine CID: 379
Engine Block Type: V
Cylinder Type: OHV
Cylinders: 8
Drive: RWD
Body Type: Cab & Chassis
Doors: 4

Repair services & inexpensive new parts for 1986 GMC C3500 1986 High Sierra Cab & Chassis with 6.2L 379Cu. In. V8 DIESEL OHV Naturally Aspirated engine.