4.12
COOLING SYSTEM
THERMOSTAT
Removal (Engine Installed)
1.
Drain coolant so the coolant level is below the thermostat
housing (see “Coolant Drain / Radiator Removal”).
2.
Remove the (2) screws from the rear portion of the air box.
3.
Locate the thermostat housing on the left side of the valve
cover next to the fuel rail.
4.
Remove the (2) screws and lift the housing up far enough
to remove the thermostat with the coolant line still attached.
Installation
1.
Install the thermostat, thermostat cover, and the (2) screws.
Torque screws to specification.
2.
If servicing while the engine is in the vehicle, perform the
“Cooling System Bleeding Procedure”.
TROUBLESHOOTING
Cooling System
Overheating
• Low coolant level
• Air in cooling system
• Wrong type/mix of coolant
• Faulty pressure cap or system leaks
• Restricted system (mud or debris in radiator fins
causing restriction to air flow, passages blocked in
radiator, lines, pump, or water jacket, accident damage)
• Lean mixture (fuel system restriction)
• Fuel pump output weak
• Electrical malfunction
• Water pump failure/ Loose impeller
• Engine Coolant Temperature Sensor failure
• Cooling fan inoperative or turning too slowly (perform
current draw test)
• Low oil level
• Spark plug incorrect heat range
• Faulty hot lamp circuit
• Thermostat stuck closed or not opening completely
Temperature Too Low
• Thermostat stuck open
Leak at Water Pump Weep Hole
• Faulty water pump mechanical seal
• Worn pump shaft or pump shaft bearing
=
T
Thermostat Housing Screws:
89 in. lbs. (10 Nm)
Thermostat
Shown with air box
removed for clarity.
Housing
89 in. lbs.
(10 Nm)
PartShark.com
877-999-5686
Summary of Contents for 2009 Sportsman XP 850
Page 10: ...NOTES GENERAL INFORMATION 1 10 P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 44: ...NOTES MAINTENANCE 2 34 P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 148: ...5 56 ENGINE Balance Shaft Timing P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 154: ...NOTES ENGINE 5 62 P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 202: ...NOTES CLUTCHING PVT 7 30 P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 256: ...NOTES BODY FRAME 9 10 P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 323: ...12 31 ELECTRICAL 12 Instrument Cluster Circuit P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 327: ...12 35 ELECTRICAL 12 Battery Charging Circuits P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 329: ...12 37 ELECTRICAL 12 Constant Power Circuits P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 335: ...12 43 ELECTRICAL 12 Engine Start Command Circuits P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 338: ...12 46 ELECTRICAL AWD ADC Circuits P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 341: ...12 49 ELECTRICAL 12 Radiator Fan Circuit P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 343: ...12 51 ELECTRICAL 12 Gear Selector Switch Circuit P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 356: ...WD 20 WIRE DIAGRAM 2009 SPORTSMAN XP 850 INTL EFI P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 358: ...WD 24 WIRE DIAGRAM 2009 SPORTSMAN XP 850 INTL EPS P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 367: ...WD 5 WIRE DIAGRAM 2009 SPORTSMAN XP 850 AWD ADC P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 374: ...WD 19 WIRE DIAGRAM 2009 SPORTSMAN XP 850 EFI P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 376: ...WD 23 WIRE DIAGRAM 2009 SPORTSMAN XP 850 EPS P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...