Arctic Cat Prowler 500 Problems

The Arctic Cat Prowler 500, a popular side-by-side known for its affordability and utility, isn't without its quirks. While it's a capable machine for work and recreation, potential owners and current users should be aware of common issues that can arise. Understanding these potential problems allows for proactive maintenance and informed decision-making, helping you keep your Prowler 500 running smoothly for years to come.

So, What's Bugging Your Prowler 500? Let's Dive In!

No machine is perfect, and the Prowler 500 is no exception. While many owners report years of trouble-free service, some common problems tend to pop up more frequently than others. Let's break down the most prevalent issues, why they occur, and what you can do about them.

The Dreaded Stalling Issue: Why Does My Prowler Keep Dying?

One of the most frustrating issues reported by Prowler 500 owners is stalling, especially at idle or low speeds. This can be caused by several factors:

Fuel System Problems: This is often the prime suspect. A dirty fuel filter, clogged fuel injector, or a weak fuel pump can all restrict fuel flow, leading to stalling. Ethanol in modern gasoline can also contribute to fuel system issues, as it can attract moisture and cause corrosion.
Vacuum Leaks: Vacuum leaks can disrupt the air/fuel mixture, causing the engine to run lean and stall. Check all vacuum lines for cracks, looseness, or disconnections. The intake manifold gasket can also be a source of leaks.
Idle Speed Adjustment: Sometimes the idle speed is simply set too low. A slight adjustment to the idle speed screw on the carburetor (or throttle body, depending on the model year) can often resolve the issue.
Spark Plug Issues: A fouled or worn spark plug can cause misfires and stalling. Regularly inspect and replace your spark plug according to the manufacturer's recommendations.
Carburetor Issues (Older Models): Prowler 500s from earlier years used carburetors. These can become gummed up with old fuel and require cleaning or rebuilding. Modern fuel stabilizers can help prevent this.
Throttle Position Sensor (TPS) Issues (Later Models): Later models with fuel injection use a TPS to tell the ECU the position of the throttle. A faulty TPS can give incorrect readings, leading to poor performance and stalling.

What to do: Start by checking the fuel filter and fuel lines for any signs of blockage. If you suspect a vacuum leak, use a can of carburetor cleaner and spray it around vacuum lines and the intake manifold while the engine is running. If the engine speed changes, you've likely found a leak. Inspect and replace your spark plug. For carburetor issues, consider using a carburetor cleaner additive to your fuel or having the carburetor professionally cleaned. If your Prowler is fuel-injected, you might need to have the TPS tested and potentially replaced.

Overheating Woes: Keeping Your Cool (Or Trying To)

Overheating can be a serious problem, potentially leading to engine damage. Here's what might be causing your Prowler 500 to run hot:

Low Coolant Level: This is the most obvious and often overlooked cause. Check your coolant reservoir and radiator regularly, and top off as needed with the correct type of coolant.
Radiator Problems: A clogged or damaged radiator can't effectively dissipate heat. Inspect the radiator fins for debris and clean them with a soft brush and water. Check for leaks and any signs of damage.
Faulty Thermostat: The thermostat regulates coolant flow. If it's stuck closed, it will prevent coolant from circulating properly, leading to overheating.
Water Pump Failure: The water pump circulates coolant throughout the engine. A failing water pump will not circulate coolant efficiently.
Air in the Cooling System: Air pockets can impede coolant flow and cause localized overheating. Bleed the cooling system to remove any trapped air.
Stuck Fan (If Equipped): Some Prowler 500 models are equipped with an electric cooling fan. Make sure the fan is functioning correctly and that the fan switch is working.

What to do: Start by checking your coolant level and inspecting the radiator for debris. If the coolant level is fine and the radiator is clean, consider checking the thermostat. If the thermostat is okay, suspect the water pump or a blockage in the cooling system. Bleeding the cooling system is a relatively simple process that can often resolve overheating issues caused by air pockets.

Suspension Struggles: A Bumpy Ride Isn't Always Fun

The suspension on the Prowler 500 is adequate for general use, but it can be a source of problems, especially with heavy loads or aggressive riding:

Worn Bushings: The bushings in the suspension arms are prone to wear and tear, leading to excessive play and a sloppy ride. Inspect the bushings regularly and replace them as needed.
Damaged Shocks: Over time, the shocks can lose their damping ability, resulting in a bouncy and uncomfortable ride. Look for leaks or signs of damage. Consider upgrading to aftermarket shocks for improved performance.
Broken Springs: Broken springs are less common, but they can occur, especially with heavy loads or rough terrain. Inspect the springs for cracks or breaks.
Loose Hardware: Check all suspension bolts and nuts for tightness. Loose hardware can contribute to excessive play and noise.

What to do: Regularly inspect your suspension components for wear and tear. Replacing worn bushings and shocks can significantly improve the ride quality and handling.

Electrical Gremlins: When Things Just Stop Working

Electrical problems can be frustrating to diagnose and repair. Here are some common electrical issues with the Prowler 500:

Battery Issues: A weak or dead battery is a common problem, especially if the Prowler is not used regularly. Keep your battery charged, especially during periods of inactivity. Consider using a battery tender.
Loose Connections: Loose or corroded connections can cause a variety of electrical problems. Check all connections for tightness and clean any corrosion.
Faulty Wiring: Damaged or frayed wiring can cause shorts and other electrical problems. Inspect the wiring harness for any signs of damage.
Blown Fuses: Blown fuses are often a sign of a short circuit or overload. Replace blown fuses with the correct amperage rating.
Stator Problems: The stator charges the battery while the engine is running. A failing stator can lead to a dead battery and other electrical problems.

What to do: Start by checking the battery and all electrical connections. Use a multimeter to test for voltage and continuity. If you suspect a wiring problem, carefully inspect the wiring harness for damage.

Transmission Troubles: Shifting Gears (Or Not)

The transmission on the Prowler 500 is generally reliable, but it can experience problems:

Hard Shifting: Hard shifting can be caused by low transmission fluid, worn shift linkage, or internal transmission damage.
Popping Out of Gear: This is often a sign of worn gears or shift forks.
Clutch Problems: The clutch (if equipped with a manual transmission) can wear out over time, leading to slipping or difficulty engaging gears.
Belt Problems (CVT Models): Models with a CVT transmission can experience belt slippage or breakage.

What to do: Check the transmission fluid level and condition. Inspect the shift linkage for wear and tear. If you suspect internal transmission damage, it's best to have it professionally inspected and repaired. For CVT models, inspect the belt for wear and tear and replace it as needed.

Keeping Your Prowler Happy: Preventative Maintenance is Key

The best way to avoid problems with your Prowler 500 is to perform regular preventative maintenance. This includes:

Regular Oil Changes: Change the engine oil and filter according to the manufacturer's recommendations.
Air Filter Maintenance: Clean or replace the air filter regularly.
Fuel Filter Replacement: Replace the fuel filter periodically.
Coolant Flush: Flush and replace the coolant every few years.
Greasing: Grease all grease fittings regularly.
Tire Pressure: Maintain proper tire pressure.
Regular Inspections: Inspect all components for wear and tear.

By following a regular maintenance schedule, you can significantly reduce the risk of problems and keep your Prowler 500 running smoothly for years to come.

Frequently Asked Questions About Prowler 500 Problems

Why does my Prowler 500 stall when it's cold? This is often due to a lean fuel mixture. Check your choke (if equipped) or consider adjusting the idle mixture screw.
What type of oil should I use in my Prowler 500? Consult your owner's manual for the recommended oil type and viscosity. Using the wrong oil can damage your engine.
How often should I change the oil in my Prowler 500? Refer to your owner's manual for the recommended oil change interval. However, more frequent oil changes are recommended if you operate in dusty or muddy conditions.
Why is my Prowler 500 losing power? This could be due to a variety of factors, including a clogged air filter, a fuel system problem, or a worn spark plug. Start by checking these basic components.
My Prowler 500's battery keeps dying. What's the problem? This could be due to a weak battery, a faulty charging system, or a parasitic draw. Have your battery and charging system tested.

The Bottom Line

While the Arctic Cat Prowler 500 can have its share of common issues, understanding these potential problems allows for proactive maintenance and informed repairs. By staying vigilant with preventative measures and addressing issues promptly, you can keep your Prowler 500 running strong for years to come.