1998 Chevrolet Astro Severe Duty Radiator Fan Clutch TRQ RCA91846

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Hi, I'm Mike Green. I'm one of the owners of 1AAuto. I want to help you save time and money repairing and maintaining your vehicle. I'm going to use my 20-plus years experience restoring and repairing cars and trucks like this to show you the correct way to install parts from 1AAuto.com. The right parts installed correctly. That's going to save you time and money. Thank you and enjoy the video.

In this video we'll be showing you how to replace the fan or the fan clutch on this 2002 GMC Yukon. This is very similar for most GMC SUVs and trucks from 99 to 06 and 07. Tools you'll need are pretty basic, eight, 10 and 13-millimeter sockets and ratchet, a flat-blade screwdriver, a large adjustable wrench and a hammer.

We're going to begin by using an eight-millimeter socket ratchet or wrench to disconnect our negative battery cable and then we're going to loosen two clamps: this one here at the front of your throttle body and this one right down here near your air box. Now with those loosened up, these rubber hoses may stick on so you may want to take a screwdriver and kind of gently just work it under in a few different places. Get the hoses unstuck. Then you pull the hoses off; pull it off the front of the throttle body here. See this one is a little more difficult. Right under here there's a clamp, so pull this up. You just want to work this out of this pin here. It usually comes off pretty easy. Bring this whole assembly right up and out.

Next, we're going to remove two 10-millimeter bolts, one here and one right over here and then pull this little hose out of here. We're basically going to take off the upper fan shroud. You'll want to pull this hose up and out, work it carefully back and forth and pull up and you should be able to pull that out. Then down here there are little pins. You actually pry the center of them up first. Once you pry the center up they'll come right out. There are four of those, there, there and then the same kind of area on the other side right there, then one right there.

Next step is to remove the fan here, large adjustable wrench; put it onto that nut. The best way is to use a little old-fashioned impact. Obviously you still have the belts on the motor once you've broken it loose. To replace your fan clutch, a 13-millimeter socket and you basically just remove these four bolts. The fan separates from the fan clutch. Put your new fan clutch in. Tighten up these four bolts again. These bolts should tighten up to about 20 to 25 foot-pounds.

Put the fan on using our big adjustable wrench. Tighten as much as you can. Use the power of impact to tighten it up further. Now we're going to put the upper shroud back on. Your four pins pop in, push them down to lock. This one pops in; push it down and then the two on this side and then your two bolts, 10 millimeter. We'll tighten up those 10-millimeter bolts and now fasten your upper radiator hose on there correctly and put your air intake back in. Make sure you get those hoses connected properly and securely and then nice and tight. Make sure it's pushed onto the throttle body correctly and that clamp is all tight. Then you can reconnect your battery and you're all set.

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