The Can-Am Commander is a versatile side-by-side vehicle, known for its blend of utility and recreational capabilities. It's a popular choice for riders who need a machine that can handle both work around the property and weekend adventures on the trails. However, like any complex piece of machinery, the Commander isn't immune to issues. Understanding these common problems, and more importantly, knowing how to address them, can save you time, money, and frustration, allowing you to spend more time enjoying your ride.

So, What’s Going Wrong with My Commander? Common Issues Explained

Let’s dive into some of the most frequently reported problems with Can-Am Commanders. We'll look at the symptoms, potential causes, and, most importantly, what you can do to fix them.

1. The Dreaded "Limp Home" Mode

This is perhaps the most talked-about issue among Commander owners. The "Limp Home" mode is a safety feature designed to protect the engine and drivetrain from serious damage when the ECU detects a problem. When triggered, it significantly reduces engine power and limits speed.

  • Symptoms: Reduced engine power, speed limitation, and a warning light (often a check engine light) on the dashboard.
  • Possible Causes: Overheating (cooling system issues), belt slippage (worn or damaged belt, clutch problems), sensor malfunctions (throttle position sensor, crankshaft position sensor), fuel delivery problems (fuel pump, clogged filter), or even a loose connection.
  • What to Do:
    • Check the basics: Coolant level, air filter cleanliness, and fuel quality.
    • Inspect the belt: Look for signs of wear, cracking, or glazing. Belt slippage is a frequent culprit.
    • Scan for codes: Use an OBD-II scanner (if compatible) or consult a Can-Am dealer to read the diagnostic trouble codes (DTCs). This will pinpoint the source of the problem.
    • Cooling System: Check radiator for mud/dirt build up, check coolant lines for kinks or clogs.
    • Address the code: Once you know the code, research its meaning and follow the recommended troubleshooting steps. This might involve replacing a sensor, cleaning a connector, or repairing a wiring harness.

2. Clutch Conundrums: Slipping, Jerking, and Just Plain Not Working

The clutch system is crucial for transferring power from the engine to the wheels. Problems here can lead to poor performance and a frustrating riding experience.

  • Symptoms: Slipping (engine revs high but the vehicle doesn't accelerate properly), jerking or shuddering during acceleration, difficulty shifting gears, or a complete failure to engage.
  • Possible Causes: Worn clutch components (primary or secondary clutch), contaminated clutch surfaces (oil, grease), broken springs, or incorrect clutch calibration (weights and springs).
  • What to Do:
    • Inspect the clutch: Remove the clutch cover and visually inspect the primary and secondary clutches for wear, damage, or contamination.
    • Clean the clutch: Use a clutch cleaner to remove any oil, grease, or debris from the clutch surfaces.
    • Replace worn parts: If you find worn or damaged components, replace them with new ones.
    • Consider a clutch kit: If you frequently ride in challenging conditions (mud, sand, hills), a clutch kit designed for your specific riding style can improve performance and durability.
    • Belt Condition: Ensure the drive belt is in good condition and within the specified width.

3. Electrical Gremlins: Lights, Batteries, and Beyond

Electrical problems can manifest in various ways, from dim headlights to a completely dead battery.

  • Symptoms: Dim or flickering lights, battery draining quickly, difficulty starting, blown fuses, or intermittent electrical failures.
  • Possible Causes: Loose connections, corroded terminals, a weak or failing battery, a faulty charging system (alternator/stator), a short circuit in the wiring harness, or a bad ground.
  • What to Do:
    • Check connections: Inspect all electrical connections for looseness and corrosion. Clean and tighten them as needed. Apply dielectric grease to prevent future corrosion.
    • Test the battery: Use a multimeter to check the battery voltage. A fully charged battery should read around 12.6 volts.
    • Test the charging system: With the engine running, the charging system should be producing around 13.5-14.5 volts.
    • Inspect the wiring harness: Look for any signs of damage to the wiring harness, such as frayed wires or cracked insulation.
    • Check the grounds: Ensure that all ground connections are clean and secure. A bad ground can cause a variety of electrical problems.

4. Overheating Issues: Keeping Your Cool

As mentioned earlier, overheating can trigger "Limp Home" mode. It's crucial to address cooling system problems promptly to prevent engine damage.

  • Symptoms: Engine temperature gauge reading high, coolant boiling over, steam coming from the engine compartment, or a loss of power.
  • Possible Causes: Low coolant level, a faulty radiator cap, a clogged radiator, a malfunctioning thermostat, a broken water pump, or air in the cooling system.
  • What to Do:
    • Check the coolant level: Make sure the coolant level is within the recommended range.
    • Inspect the radiator: Clean any mud, dirt, or debris from the radiator fins.
    • Check the radiator cap: A faulty radiator cap can prevent the cooling system from pressurizing properly, leading to overheating.
    • Test the thermostat: The thermostat controls the flow of coolant through the engine. A malfunctioning thermostat can restrict coolant flow and cause overheating.
    • Check the water pump: The water pump circulates coolant through the engine. A broken water pump will prevent proper cooling.
    • Bleed the cooling system: Air trapped in the cooling system can cause overheating. Bleed the system to remove any air pockets.

5. Suspension Woes: Bumps, Squeaks, and Uneven Handling

The suspension system is responsible for providing a comfortable ride and maintaining good handling. Problems here can make your ride uncomfortable and even unsafe.

  • Symptoms: Rough ride, excessive bouncing, squeaking or clunking noises, uneven tire wear, or poor handling.
  • Possible Causes: Worn shocks or struts, broken springs, worn bushings, loose ball joints, or bent suspension components.
  • What to Do:
    • Inspect the shocks and struts: Look for signs of leaks or damage.
    • Check the springs: Look for broken or sagging springs.
    • Inspect the bushings: Worn bushings can cause squeaking and clunking noises.
    • Check the ball joints: Loose ball joints can cause poor handling and uneven tire wear.
    • Inspect the suspension components: Look for bent or damaged suspension components.

6. Fuel Delivery Problems: Stalling, Hesitation, and Poor Performance

Issues with the fuel system can significantly impact engine performance.

  • Symptoms: Stalling, hesitation during acceleration, poor fuel economy, rough idling, or difficulty starting.
  • Possible Causes: Clogged fuel filter, a weak fuel pump, dirty fuel injectors, a faulty throttle position sensor (TPS), or a vacuum leak.
  • What to Do:
    • Replace the fuel filter: A clogged fuel filter can restrict fuel flow and cause performance problems.
    • Test the fuel pump: The fuel pump should be delivering fuel at the correct pressure.
    • Clean the fuel injectors: Dirty fuel injectors can cause poor fuel atomization and performance problems.
    • Check the throttle position sensor (TPS): A faulty TPS can send incorrect signals to the ECU, leading to performance problems.
    • Check for vacuum leaks: Vacuum leaks can disrupt the air-fuel mixture and cause performance problems.

Preventative Maintenance: The Best Medicine for Your Commander

The best way to avoid these problems is to perform regular preventative maintenance. This includes:

  • Following the manufacturer's recommended maintenance schedule: This includes changing the oil, filter, and other fluids at the specified intervals.
  • Inspecting the vehicle regularly: Look for signs of wear, damage, or leaks.
  • Keeping the vehicle clean: This will help prevent corrosion and other problems.
  • Using high-quality parts and fluids: This will help ensure the longevity of your vehicle.
  • Storing your Commander properly: When not in use, store your Commander in a dry, protected area.

Upgrades That Can Help: Addressing Weak Points

While not strictly related to problems, some upgrades can proactively address known weak points in the Commander design:

  • Heavy-duty drive belt: Upgrading to a stronger belt can help prevent belt slippage and extend belt life.
  • Aftermarket clutch kit: As mentioned earlier, a clutch kit can improve performance and durability, especially for riders who frequently ride in challenging conditions.
  • Improved cooling system components: Upgrading the radiator or adding an auxiliary fan can help prevent overheating.
  • Reinforced suspension components: Upgrading to stronger suspension components can improve handling and durability.

Frequently Asked Questions

  • Why does my Commander keep going into "Limp Home" mode? This is often due to overheating, belt slippage, or a sensor malfunction. Check these areas first.
  • How often should I change the oil in my Can-Am Commander? Consult your owner's manual, but typically, every 100 hours or 6 months, whichever comes first.
  • My Commander is hard to start. What could be the problem? Possible causes include a weak battery, a faulty starter, or fuel delivery issues.
  • What kind of fuel should I use in my Commander? Use the fuel octane rating recommended in your owner's manual, typically regular unleaded.
  • My Commander is making a loud squealing noise. What could it be? This could be caused by worn brake pads, a slipping drive belt, or worn bushings in the suspension.

Conclusion

The Can-Am Commander is a capable machine, but understanding its potential issues is crucial for keeping it running smoothly. By being proactive with maintenance and addressing problems promptly, you can ensure that your Commander provides years of reliable service. Remember to always consult your owner's manual and seek professional help when needed, so you can get back to enjoying your off-road adventures.