my Acura MDX YF3 (2022-Present) has a burning smell when driving

Symptoms

• Burning smell noticeable inside or outside the vehicle.
• Possible accompanying symptoms:
  • Smoke from under the hood.
  • Check engine light illuminated.
  • Unusual noises (squealing or grinding).
  • Fluid leaks under the vehicle.

Diagnostic Steps

1. Visual Inspection:

   • Check under the hood for any visible signs of leaks, such as oil, coolant, or brake fluid.
   • Inspect belts and hoses for wear or damage.

2. Scan for Error Codes:

   • Use an OBD-II scanner to check for any trouble codes that might indicate the source of the problem.

3. Check Fluid Levels:

   • Inspect engine oil, coolant, brake fluid, and transmission fluid levels.
   • Look for burnt fluid color or consistency, especially in transmission and brake fluid.

4. Inspect Components:

   • Examine the brakes for signs of overheating (e.g., burnt smell or discoloration of brake pads).
   • Check the exhaust system for any leaks or burnt components.

5. Electrical Inspection:

   • Inspect wiring and connectors for signs of melting or burnt insulation, especially around high-heat areas like the engine and exhaust.

Repair Instructions

Based on Diagnostics

1. Fluid Leak Repair:

   • If you find leaks, identify the source (e.g., oil pan gasket, coolant hose).
   • Replace the damaged gasket or hose as necessary.
   • Tools Required: Socket set, torque wrench, fluid catch pan.
   • Time Estimate: 1-2 hours depending on the severity.

2. Brake System Repair:

   • If brakes are overheating, replace worn brake pads and inspect rotors for damage.
   • Bleed the brake system if necessary.
   • Tools Required: Jack and jack stands, socket set, brake fluid, brake pad tool.
   • Time Estimate: 1-3 hours.

3. Electrical Repair:

   • If wiring or connectors are damaged, replace them.
   • Use heat-shrink tubing to cover any exposed wires.
   • Tools Required: Wire strippers, soldering iron or crimp connectors, electrical tape.
   • Time Estimate: 1 hour.

4. Overheating Diagnosis:

   • If the engine is overheating, check the radiator and coolant levels. Replace the thermostat or water pump if necessary.
   • Tools Required: Socket set, coolant pressure tester.
   • Time Estimate: 2-4 hours.