Outlander Fuel Pressure: What's The Deal?

The Can-Am Outlander is a popular ATV model, but some users have reported issues with fuel pressure. A common problem is that the vehicle suddenly stops, stutters, or fails to accelerate as expected. In some cases, this may be due to fuel pump problems, which can be caused by electrical issues, wear and tear, or fuel contamination. It's important to accurately diagnose the issue, as it could also be related to the fuel line, pressure regulator, or fuel filter. Maintaining proper fuel pressure is crucial for the vehicle's performance and can help prevent further damage to other components.

Fuel pressure tester kits

There are a variety of fuel pressure tester kits available on the market, and the specific components and features can vary depending on the kit. Some kits are designed for specific vehicle makes and models, while others are more universal. It's important to choose a kit that is compatible with your vehicle and has the necessary adapters and fittings to connect to your fuel system.

• Innova Fuel Injection Pressure Tester: This kit is available from AutoZone and includes a fuel pressure gauge and other necessary tools to test the fuel pressure. It is designed to work with most domestic fuel-injected vehicles and many imported cars.
• OEMTOOLS Fuel Pressure Test Kit: Also available from AutoZone, this kit includes a limited-lifetime warranty. It provides the tools needed to test the fuel pressure and diagnose any issues.
• ACTRON Ford Fuel Adapter for Fuel Pressure Tester Kit CP7818: This adapter is specifically designed for Ford vehicles and can be used with the ACTRON fuel pressure tester kit. It allows you to connect the tester to the Ford fuel system.
• Mityvac Fuel Pressure Tester Kit: Another option available from AutoZone, this kit includes the necessary tools to perform a fuel pressure test. It may be compatible with a range of vehicles, but it's important to check the specifications before purchasing.
• BETOOLL Fuel Pressure Test Kit: Available on Amazon, this kit includes a fuel pressure gauge and fittings for a range of vehicles, including cars, motorcycles, trucks, RVs, and ATVs. It has a pressure range of 0-100 PSI.
• Orion Motor Tech Fuel Pressure Gauge Kit: Also available on Amazon, this kit includes a 0-140 PSI fuel pressure gauge, hoses, adapters, and other tools. It is suitable for gasoline-powered cars, trucks, and motorcycles.
• Universal Fuel Injection Gauge Pressure Tester Kit: This universal kit is designed to fit most gasoline-powered cars, trucks, motorcycles, RVs, and ATVs. It includes a 0-100 PSI fuel pressure gauge and the necessary adapters and fittings.

These are just a few examples of the many fuel pressure tester kits available. When choosing a kit, it's important to consider the compatibility with your vehicle, the pressure range of the gauge, the quality and durability of the components, and the reputation of the manufacturer.

Fuel pressure regulator

The fuel pressure regulator is an important component of the fuel system in the Can-Am Outlander. It plays a crucial role in maintaining the proper fuel pressure, ensuring that the engine receives the correct amount of fuel for optimal performance.

The fuel pressure regulator is designed to keep the fuel pressure at a constant 50-52 PSI in the Can-Am Outlander. This is crucial for the engine's performance and fuel efficiency. If the fuel pressure is too low, it can cause issues with starting the vehicle and throttle response, as well as bogging down the engine and potentially leading to backfiring. On the other hand, if the fuel pressure is too high, it can lead to fuel pump failure and engine damage.

One common issue with the Can-Am Outlander's fuel system is that the fuel pressure regulator may need to be replaced. Symptoms of a faulty fuel pressure regulator include difficulty starting the engine, poor throttle response, and engine bogging or backfiring. In some cases, the fuel pump may need to be replaced along with the regulator.

It is worth noting that Can-Am does not sell the fuel pressure regulator separately, and you may need to purchase the entire fuel pump assembly. However, some aftermarket options are available that directly replace the stock regulator, ensuring proper fuel pressure and maintaining the performance and fuel efficiency of your Can-Am Outlander.

When dealing with fuel pressure issues, it is important to consult a professional mechanic or a trusted Can-Am dealership to accurately diagnose and address the problem. They will have the necessary tools and expertise to test the fuel pressure and recommend the appropriate course of action, ensuring the safe and efficient operation of your vehicle.

Fuel pump failures

Car Won't Start

If your vehicle is struggling to start or isn't starting at all, it could be due to a faulty fuel pump that is damaged or clogged. If the car still cranks when the key is turned but won't start, it's possible that fuel isn't reaching the engine.

Car Sputters or Dies While Driving

If your engine is sputtering or stalling during your drive, a faulty fuel pump is likely the culprit. Low pressure caused by a malfunctioning fuel pump results in an insufficient fuel and air mixture, leading to incomplete combustion and power loss in the car.

Engine Surges While Driving

A common symptom of a bad fuel pump is a surging engine. This occurs when too much fuel is sent to the engine, causing the vehicle to repeatedly speed up and then slow down, even though you haven't touched the pedals.

Whining Noise from the Fuel Tank

If you hear a loud, whining noise coming from your fuel tank, it could indicate a damaged fuel pump. The pump may also make this noise if you're low on fuel or if the fuel in your tank is contaminated. Typically, a healthy pump will produce a quiet, low hum.

Engine Sputtering at High Speeds

If your engine sputters or misfires at high speeds, it could be due to a faulty fuel pump that is unable to maintain a consistent or pressurised flow of fuel to the engine. This is often caused by dirt or dust accumulation in the fuel line or other damage.

Low Fuel Pressure

A decrease in fuel pressure can lead to engine stalls, rough idling, choppy rides, poor acceleration, and misfires. If your check engine light is on and your car has been stalling, it could be due to a failing fuel pump.

Inability to Accelerate Efficiently

A failing fuel pump may cause uneven resistance, resulting in inefficient acceleration and deceleration. If your car struggles to speed up while driving, it's possible that the fuel pump isn't delivering enough fuel to the engine.

Engine Shutdown or Failed Start

If your engine shuts down unexpectedly or fails to start, it could be due to a fuel pump issue. The fuel pump must function properly to ensure the engine receives the necessary fuel to operate.

Power Loss Under Stress

If your vehicle starts to lose power when driving up steep inclines, carrying heavy cargo, or under similar stressful conditions, the fuel pump may be at fault. The engine requires more fuel to function in these situations, and a malfunctioning pump may not be able to deliver the required amount.

Reduction in Mileage

A malfunctioning fuel pump can also lead to a decrease in your vehicle's mileage. If you've noticed a drop in the distance you can travel on a full tank, it could be due to the fuel pump not providing the engine with enough fuel, causing increased fuel consumption.

Fuel pump diagnostic testing

Step 1: Check whether the problem is fuel-related

If the engine won't start, listen for the fuel pump by putting your ear near the fuel tank and turning the ignition key to the "on" position. If the engine exhibits performance issues, check for diagnostic trouble codes (DTCs) with a scanner or code reader.

Step 2: Check fuel pressure and/or volume

Check fuel pressure by connecting a mechanical fuel pressure gauge to the test port on the fuel rail. Turn the ignition to the "on" position and note the reading on the gauge, comparing it to the specification in your repair manual. If the reading is significantly different, you may have a bad fuel pump.

Step 3: Advanced tests

If you have an oscilloscope, measure the current draw by connecting a low amp clamp probe to the pump's power wire. A good pump should produce a pattern of even "humps". If the pump is bad, the humps will be jagged and uneven.

Alternatively, use a professional-grade scan tool to remotely activate the pump and see if it runs.

Additional Notes

If you're experiencing acceleration issues, especially on the highway, or the engine won't start, it could be due to a blocked or clogged fuel line, fuel filter, pump, or injector.

Before performing any tests, it's important to consult your vehicle's repair manual for specific instructions and safety procedures. Additionally, always ensure you take the proper safety precautions when working on or testing the fuel system.

Fuel pump replacement

Step 1: Park Your Vehicle and Test the Fuel Pump

Park your vehicle on a level surface and engage the parking brake. To test if your fuel pump is faulty, turn the key to the "on" position and listen at the filler opening. A functioning fuel pump will make a soft humming sound for two to three seconds.

Step 2: Check the Fuel Pump Fuse and Relay

If you don't hear the fuel pump hum, the next step is to check the fuel pump fuse and relay. If the fuse is blown, replace it with one of the same amperage and retest the fuel pump.

Step 3: Check for Power and Ground at the Fuel Pump

If the fuse and relay are functional, the next step is to check for power and ground at the fuel pump. This may require removing the fuel tank or the back seat. If there is power and ground at the pump, then the pump is faulty and needs to be replaced.

Step 4: Prepare Your Workspace and Gather Tools

Before beginning the fuel pump replacement, it is important to prepare your workspace and gather the necessary tools and equipment. This includes a new fuel pump, fuel filter, and any other components specific to your vehicle. It is recommended to work in a well-ventilated area, preferably outdoors, to minimize the risk of fire and inhalation of harmful fumes. Always wear safety gear, such as safety glasses, gloves, and appropriate clothing, to protect yourself from fuel spills and splashes.

Step 5: Relieve the Fuel System Pressure and Disconnect the Battery

The next step is to relieve the fuel system pressure. This can be done by running the engine and pulling the fuel pump relay, causing the engine to stall. Alternatively, with the engine off, you can press the Schrader valve on the pressure line momentarily to release a small spray of fuel. After relieving the pressure, disconnect the negative battery cable.

Step 6: Drain the Fuel Tank and Disconnect the Filler Tube Hose

To minimize the risk of spills and make the fuel tank easier to handle, drain or siphon as much fuel as possible from the tank. Then, disconnect the filler tube hose and any electrical connections to the pump.

Step 7: Remove the Fuel Tank and Locate the Fuel Pump

Use a jack to support the fuel tank and remove any retaining straps or bolts holding the tank to the frame. Lower the tank carefully and locate the fuel pump.

Step 8: Disconnect the Fuel Lines and Remove the Old Fuel Pump

Before removing the old fuel pump, take note of the fuel line connections and wiring. Disconnect all connections, turn the large lock nut to free the old pump, and pull it out.

Step 9: Install the New Fuel Pump and Reassemble the Fuel System

Compare the new fuel pump with the old one to ensure you have the correct part. Install the new fuel pump, connect the fuel lines, and secure the pump in place. Lift the fuel tank back into position and install the retaining strap. Reconnect the filler tube hose and the electrical connector.

Step 10: Reconnect the Battery and Refill the Fuel Tank

Reconnect the negative battery cable and refill the fuel tank with gas.

Step 11: Test Drive Your Vehicle

Finally, take your vehicle for a test drive to confirm that the new fuel pump is functioning properly.

Fuel Pump Specifications for Can-Am Outlander

It is important to maintain the correct fuel pressure for your Can-Am Outlander. According to a forum discussion, the recommended fuel pressure is 51 psi, with values below 40-45 psi potentially causing issues.

Additional Tips for Fuel Pump Replacement

• Work in a well-ventilated area to minimize the risk of fire and inhalation of fumes.
• Always wear proper safety gear, including safety glasses, gloves, and appropriate clothing.
• Drain the fuel tank to reduce the risk of spills and make it easier to handle.
• Clean around the fuel pump to prevent dirt and debris from falling into the fuel tank.
• Consider replacing related components such as the fuel filter, fuel pump strainer, and fuel tank O-ring or gasket.
• Consult your vehicle's service manual or online tutorials for specific guidance on fuel pump replacement for your Can-Am Outlander.

Frequently asked questions