Page 43 - Manual_Polaris_RZR_ProXP-20-21

GENERAL INFORMATION

COOLING TROUBLESHOOTING
1
OVERHEATING

• Low coolant level • Restricted system (mud or debris • Electrical malfunction
in radiator fins causing restriction
• Air in cooling system • Water pump failure/ Loose
to air flow, passages blocked in
• Wrong type/mix of coolant radiator, lines, pump, or water impeller
jacket, accident damage) • Thermistor failure
• Faulty pressure cap or system
leaks • Lean mixture (vents, fuel pump) • Low oil level
• High oil level • Fuel pump output weak • Thermostat stuck closed or not
opening completely
• Spark plug incorrect heat range • Cooling fan inoperative or turning
too slowly (perform current draw
• Radiator
test)
• Faulty hot light circuit

LEAK AT WATER PUMP WEEP HOLE

• Faulty water pump mechanical seal (coolant leak) • Faulty pump shaft oil seal (oil leak)

TEMPERATURE TOO LOW

• Thermostat stuck open • Contaminated coolant
• Thermostat opening too soon

9930583 R01 - 2020-2021 RZR PRO XP / XP 4 Service Manual 1.37
© Copyright Polaris Industries Inc.