Does a fan clutch have a relay?
Does a fan clutch have a relay?
Most cooling fans use electric motors that have a moderate to high current draw, and as a result are commonly controlled using relays. The cooling fan relay is the relay that controls the engine’s cooling fans.
What is the purpose of a thermostatic clutch fan?
A fan clutch is a thermostatic engine cooling fan that can freewheel at low temperatures when cooling is not needed, allowing the engine to warm up faster, relieving unnecessary load on the engine. As temperatures increase, the clutch engages so that the fan is driven by engine power and moves air to cool the engine.
What should the engine temperature be in a Dodge Durango?
If the engine temperature exceeds 99° C. (210° F.) during normal operating conditions, the cooling system must be inspected and repaired. Refer to the 1999 Durango Service Manual (Publication No. 81-37091 16), pages 7-9 through 7-20 for information regarding Cooling System Diagnosis And Testing.
How does a non thermal fan clutch work?
A thermal fan clutch has a coil in the middle of the center of the front of the fan. When this coil heats up to a certain temp it engages the fan to spin at the rpm of the engine. A non thermal does not have the coil and is always engaged. So it is always spinning at the engine rpm.
How do you change the fan shroud on a Dodge?
To allow for adjustment of the fan shroud, drill the upper fan shroud attachment holes to 15 mm (0.59 in.). 8. Attach the new fan blade p/n 52027709 to the new viscous fan drive p/n 52029767AA using the four bolts removed from the old assembly. Tighten the bolts to 23 N.m (17 ft. lbs.). 9.
Where is the fan drive located on a water pump?
Discussion: Vehicles built after January 5,1998 have the water pump pulley pressed onto the water pump hub shaft. As in previous models, the viscous fan drive is threaded onto the water pump hub shaft. Because the pulley is pressed onto the hub shaft, viscous fan drive removal/installation procedures are unique.
If the engine temperature exceeds 99° C. (210° F.) during normal operating conditions, the cooling system must be inspected and repaired. Refer to the 1999 Durango Service Manual (Publication No. 81-37091 16), pages 7-9 through 7-20 for information regarding Cooling System Diagnosis And Testing.
A thermal fan clutch has a coil in the middle of the center of the front of the fan. When this coil heats up to a certain temp it engages the fan to spin at the rpm of the engine. A non thermal does not have the coil and is always engaged. So it is always spinning at the engine rpm.
To allow for adjustment of the fan shroud, drill the upper fan shroud attachment holes to 15 mm (0.59 in.). 8. Attach the new fan blade p/n 52027709 to the new viscous fan drive p/n 52029767AA using the four bolts removed from the old assembly. Tighten the bolts to 23 N.m (17 ft. lbs.). 9.
Discussion: Vehicles built after January 5,1998 have the water pump pulley pressed onto the water pump hub shaft. As in previous models, the viscous fan drive is threaded onto the water pump hub shaft. Because the pulley is pressed onto the hub shaft, viscous fan drive removal/installation procedures are unique.
