Fan Clutch Engagement Temperature

I have a 2004 2500hd crew cab with a 60.

Wall fan lazada. There are a lot of different models of fan clutches. Ive never overheated it but ive also never heard the fan clutch engage either. Instead the engine control module ecm or fan control module uses various sensors to determine when to engage the fan clutch such as at engine idle low vehicle speed air conditioning compressor engagement or above a certain engine temperature threshold.

Disengaged low speed operation provides fuel savings and noise reduction. Types of clutch fans. Follow a standard engage and disengage temperature.

Greater life expectancy than a non thermal clutch. That type of fan is available in thermal and non thermal operation. This style of fan clutch operates like a thermal clutch but the ecmpcm signal controls the level of engagement of the ev clutch.

They are however the most efficient form and engine fans. The gmc dealer that looked at the fan said the stack was clean the truck isnt high high mileage 76k. Briefly engaged at cold start up.

Other cooling system problems affecting fan clutch operation plugged radiator inside or outside can delay or eliminate fan clutch engagement partially opened thermostat does not allow full coolant flow to the radiator too much antifreeze concentration does not transfer heat as well as 505000 mixture symptoms of fan clutch problems. They engage at 180 degrees farenheit and disengage at 170 degrees. Engaged high speed operation provides maximum cooling.

I usually take it pretty easy like 35 40 mph in 2nd gear but the truck still seems to get hot. Im pulling a 27 foot travel trailer up some pretty good grades. Coolant temperature intake manifold temperature transmission oil temperature ac pressure and engine oil.

The derale clutch part d22022 will be a direct replacement for your fan clutch. All the clutches distributed and sold here in the us. However if engine temperature rises above the clutchs engagement temperature setting the fan becomes fully engaged thus drawing a higher volume of ambient air through the vehicles radiator which in turn serves to maintain or lower the engine coolant temperature to an acceptable level.

Varies the fan speed with temperature of the air behind the radiator. The second dealer we went to about the dpf fault said the fan clutch kicks in at the temperature that is set in ecm so that would suggest it has nothing to do with heat on fan blades.