Content Source: 2021 RZR Pro XP and Pro XP 4 Owner’s Manual (9931538 R01) > Troubleshooting Chapter
| IMPORTANT |
|
The Owner's Manual for this vehicle contains warnings, instructions and other information you must read and fully understand before safely riding or performing maintenance on this vehicle.Always follow the warnings and instructions in Owner's Manual. Click the CONTENTS link above for the Table Of Contents, or download a full PDF of the Owner Manual in the Owner Support area of Polaris.com |
| Possible Cause | Solution |
|---|---|
|
Out of fuel |
Refuel |
|
Kinked or plugged fuel tank vent line or filter |
Inspect and replace |
|
Water is present in fuel |
Replace with new fuel |
|
Fouled or defective spark plugs |
Inspect, clean and/or replace spark plug |
|
Worn or defective spark plug wires |
Your POLARIS dealer can assist. |
|
Incorrect spark plug gap or heat range |
Set gap to specs or replace plug |
|
Loose ignition connections |
Check all connections and tighten |
|
Low battery voltage |
Recharge the battery to 12.8 VDC |
|
Incorrect fuel |
Replace with fresh recommended fuel |
|
Clogged air filter |
Inspect and replace |
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Clogged intake pre-filter |
Inspect and clean (with soapy water) or replace |
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Other mechanical failure |
Your POLARIS dealer can assist. |
|
Overheated engine |
Clean radiator screen and core, clean engine exterior, check coolant level. Your POLARIS dealer can assist. |
|
Loose, missing, torn or kinked boost reference line from manifold to fuel pressure regulator or blow-off valve |
Replace boost reference line |
|
Loose, missing, torn or kinked boost reference line from turbo compressor to boost control valve |
Replace boost reference line |
|
Loose intake system connections |
Inspect connections, tighten or replace as needed |
|
Worn or defective wastegate actuation system |
Your POLARIS dealer can assist. |
|
Overheated intake air system |
Inspect intercooler water lines for leaks or kinks, repair or replace as needed |
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