How to Replace Water Pump 2000-06 GMC Yukon

Remove this cover. I'm going to use an 8-millimeter socket. Loosen that bolt up and slide the cover up. And loosen up this warm clamp, you can use the 8-millimeter socket or a straight blade screwdriver. And the same with this one right here. Use a trim tool and just separate this retainer right there or that bracket. Now slide the snorkel off there and pull it out. Just to gain more access, I'm going to pull this airbox off. Disconnect the mass air flow sensor, grab the airbox, pull it straight up and you can slide it out. These two tabs and this holds it in. I'm just going to take the cap off the coolant reservoir, set it aside. I'm going to take the bottom radiator hose off. I need to drain the coolant. There's no coolant drain on this radiator. So I'm going to use a hose clamp pliers that have the cable style. Remove that hose clamp, make sure you have a drain bucket underneath. Squeeze that. Just let that drain out.

I'm going to take these two bolts out up top, use a 10-millimeter socket. And there's four pushpins, two on this side and two on the other side. You can use a push pin removal tool or a trim tool. Just remove these. Now, take this hose retainer off right here. Just use a trim to slide, that up. Slide this hose out right here. It should be [inaudible 00:02:18]. Just move this hose out of your way and just slide this cover right out. I'm going to use a fan clutch tool with the 36-millimeter adapter and just go right here, this setup. Once you get it loose, you should be able to spin it off just like that. And pull it out. All right, take this smaller hose out of that bracket or holder and I'll use a hose clamp tool. Just move this hose clamp. Try to twist the hose a little bit. And it's not really twisting too well. I'll just use a pick and just get underneath here. Just be careful not to ruin the hose. And just slide this off.
Now, I'm going to remove the drive belt. You can use a 15-millimeter wrench or a serpentine belt removal tool. Just loosen the tension on the tensioner and slide it off the idler pulley and then take the belt off, take it off the water pump, off the power steering pump, set it aside. And take these bolts out for the tensioner pulley. Use a 15-millimeter socket, there's 3 of them. And take the tensioner off. And we want to take this hose off, so remove that hose clamp or move the hose clamp. Use the hose clamp pliers. Just twist the hose. Make sure you have a drain bucket underneath in case there is any extra coolant. And slide that off. And do the same for these two. Take the hose clamp off and remove the hoses. Now there's three bolts on this side and three bolts on this side. Take those out with a 10-millimeter socket. All right. And then get the last one out. Just hold the water pump from falling and just slides out just like that. And take these gaskets off. And you're going to want to clean this surface area right here and where the other side is. Either use a razor blade or a scraper. Clean that up. Just be careful not to gouge the metal.

If you're going to reuse the old thermostat, take a 10-millimeter socket, there is a bolt here and a bolt down here. Take those out. This is pretty bad, you're going to want to replace that gasket. Just grab the thermostat, slide it out. Slide the old gasket off, clean this all up, put a new gasket on and reinstall it. Put the gasket back in, put the thermostat into the housing and slide it in position. Put the bolts on. Now I'm going to torque these bolts to 11-foot-pounds. Now, take the water pump, put the bolts in their position, and then we're going to take these seals and line these up just like that. And the bolts are going to hold those seals in.

All our surfaces are clean. Just take a rag and some brake parts cleaner. Just make sure they're clean and slide this in position. Make sure those seals don't fall off there. Get these bolts started. Now, I'm going to do 2 passes, I am going to twerk these bolts to 11-foot-pounds first. Just going to alternate side to side and then for the final torque, I'm going to torque these to 22-foot-pounds. Now, put these hoses back on. Use the hose clamp tool. Put the hose clamp back in position. And do the same for the other ones. Now we'll take the tensioner with the bolts. Line the bolts up. Now I'm going to torque these bolts to 37-foot-pounds. Take the serpentine belt. I'm going to start at the crank, the crank pulley and then wrap it around the water pump, then around the power steering pulley. Then up around the alternator, then I'm going to go over to the tensioner first, the belt should stay like that. And then grab your wrench or your tensioner tool. Just make sure the belt doesn't get stuck on that bolt, put a little pressure on it and go over the idler pulley. Take the belt off, just take a look, make sure everything's lined up. It's not lined up right there. Adjust accordingly. Take the upper radiator hose. Line this up. Get the hose clamp tool. Hose clamp pliers. Slide it over. That's good. Put this hose back in these retainers or holders. And take this little protector off, just protects the threads. Just take the fan and just line it up. Now, if you have a torque ranch and you're able to hold the water pump pulley from spinning, you can twerk that to 41-foot-pounds. We don't have that. I'm just going to use an adjustable wrench and just a hammer. Give it a couple good taps. And that's good.

All right, take this fan shroud. Hold the hose out of the way. Line it up with some alignment pins right there on both sides. Put these pushpins in, lock them down. Do the same on the other side. These bolts in. Get those lined up and tighten these down. And line this retainer up and right there. Put that hose in that position. Now take the hose. Line the hose up with the clamp. Use the hose clamp tool. And if these clamps seem weak, then replace them with a worm clamp. And slide the airbox back in position. What you want to do is slide this piece. It's going to go right here. It's going to slide there and then push the two pushpins straight down. Push Down. It's good to go. Reconnect the mass air flow sensor. And put the snorkel back on, line this up with the throttle body and the airbox. And tighten up the worm clamps. And line this bracket back up. Put the cover on, slide it in the back, get the bolt started, snug it down.

Now you want to fill up the coolant reservoir. I fill it up about an inch or two above where the fill line is before we start the vehicle and start the vehicle with the cap off and the level is going to adjust. It's probably going to suck some into the engine. And then after that, you're going to adjust accordingly. Let the vehicle run for about 10 minutes monitoring the level. While you're letting it run, monitor the temperature gauge, make sure it does not go over 210 degrees. If it does then shut the vehicle off, let it cool down, top off the coolant and try it again. Turn the heat on, put it on a medium fan. Turn the heat all the way up to hot. Make sure you do feel some heat coming out of the vents, especially when the temperature starts getting up there. If you don't feel any heat, again, your coolant level is going to be too low. Shut the vehicle off. Top off the coolant. And then after that, after the thermostat has opened up, when the hoses are nice and hot, shut the vehicle down. Adjust accordingly. Put the cap back on. You should be good to go.