The cooling fan clutch may fail causing excessive fan noise and/or the Check Engine Light to illuminate.Google+
Car Problem Reports
GMC Envoy Cooling Fan Clutch May Fail Causing Noise and Check Engine Light
GMC Envoy Problem
Engine Affected: 4.2L 6 Cylinder
Average Mileage: 102,876 mi (58,900 mi - 161,000 mi)
Visitor, 2004 GMC Envoy, 4.2L 6 Cylinder, 125,000 mi
When I step on the gas the engine fan gets loud like a plane is about to take off./
Visitor, 2003 GMC Envoy, 4.2L 6 Cylinder, 81,439 mi
Fan clutch Makes a roaring noise and turns the SES light on when running the a/c
Visitor, 2006 GMC Envoy, 4.2L 6 Cylinder, 79,900 mi
has not been repaired due to excessive cost.
Visitor, 2005 GMC Envoy, 4.2L 6 Cylinder, 94,400 mi
Same issue was told it was fan clutch. just had replaced and now the damn thing is ticking. took it back and they said it was normal! it never ticked before and I have had the car for a year!
Visitor, 2006 GMC Envoy, 4.2L 6 Cylinder
If not fix - what damage could it cause?
Same issue loud noise under hood, brought to dealear confirmed fan clutch issue and about $800 to fix.
noise when revving up
Visitor, 2003 GMC Envoy, 4.2L 6 Cylinder, 122,000 mi
Fan clutch stuck on. Like a jet engine. Good local shop fixed it but was still $660. A pretty common problem.
Visitor, 2003 GMC Envoy, 4.2L 6 Cylinder, 148,000 mi
Fan makes a loud noise when stepping on gas.
Visitor, 2005 GMC Envoy, 4.2L 6 Cylinder, 96,000 mi
Started with loud whirring noise, then check engine light. Dealer said to replace fan clutch, idler pulley and belt. Wanted $990. Had independent shop do it for $720.