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Gregs71 · 06-25-2011, 01:03 AM

I have an 89 k30 crewcab with 454. It has the auxiliary / accessory fan in front of the radiator (between grill and radiator). My question is, are these operated off accessories being on (like AC) or temperature controlled. It kicks on for 30-50 seconds when I first start the truck, but I don't know if its on when I am driving the truck.

My truck is running warm under load (230 degrees) and I am trying to figure out if it should come on at a certain temperature and how to test it???

Thanks,

Greg

06-25-2011, 01:03 AM	#1
Gregs71 Registered User Join Date: Nov 2006 Location: Amador County, Ca. Posts: 229	auxiliary / accessory fan???? I have an 89 k30 crewcab with 454. It has the auxiliary / accessory fan in front of the radiator (between grill and radiator). My question is, are these operated off accessories being on (like AC) or temperature controlled. It kicks on for 30-50 seconds when I first start the truck, but I don't know if its on when I am driving the truck. My truck is running warm under load (230 degrees) and I am trying to figure out if it should come on at a certain temperature and how to test it??? Thanks, Greg __________________ 1995 GMC 4x4 1/2 ton 1999 Jeep Wrangler w/ 33's 68 camaro 350/350 1987 Chevy 3/4 ton 4x4 Suzuki DRZ 400s Dual Sport 1971 chevy long bed 2x4 194? Dodge 2.5 ton 1980 Chevy Cheyenne 4x4 1/2 ton I6/sm455 1989 Chevy V30 crewcab dually 454/TH400