How to Replace Engine Water Pump 96-00 GMC K1500 V8 5.7L 

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Everytime I search how to fix something that's wrong on my 98 c1500, you guys already have a video for it. Love the channel. Thanks 1AAuto

I was a customer of rockauto. Until they sent me a broken radiator that I paid extra for the next day air shipping. At witch point I tried to contact them to resolve the issue and couldn't get any kind of customer service. I ended up having to rent a car for 5 days that cost me $150 while waiting for a replacement part. Now I'm a 1A customer all the way excellent customer service and quality parts and good prices!

You just got me through a pain-in-the-rear replacement. Thanks for the tip on removing the fan with the mallet to the wrench. That really helped. I would also suggest removing the idler pulley; gives you better access to the hoses behind it and just gives you a little more working room altogether. Great video, keep up the good work!

Thanks! Switched it out myself and I’m a carpenter 😂! Learning all this mechanic shit on my own is a ball buster, but rolling with it! Thanks again!!

Just what I thought the job would be after I had looked at the pump. A piece of cake. I'd spend the extra money and replace the belt, hoses and clamps. Easy to do while you're replacing the pump. 21 year old rubber (on my '97) is long overdue for replacement. I plan to shove the garden hose into each pump port on the block and run water thru until it comes out clean. Switch ports a few times. I've done this a few times over the years. You'd be amazed at the crud that comes out. Don't forget to do a leak check after the refilled system has come up to pressure. Thank you for posting this video 1A Auto Parts.

I would first like to say a huge thank you for making this video. I am a 62 year old shade-tree mechanic. I done my share of tune-up, brakes and a few water pumps on various vehicles over the years, but everything I worked on until today was 1986 and older. I now have a 1997 C1500 with a 5.7L engine. If I had not watched your video I would still be outside sweating in 100 degree heat trying to figure out what to do with crazy looking drive belt. Several of your tips allowed me to think and plan ahead before starting the job. Knowing which size sockets needed for which bolts was a time saver. I do have some questions. #1 When I attempted to bolt on the new water pump, I wrestled with it for an hour trying to keep the gaskets in place until I went and bought some JB Weld Silicone Water pump gasket sealer to hold them on the ends of the new water pump. I noticed you did not put any gasket sealer on your gaskets. Was there a reason for this? #2 It also appeared that you used removable Loc-Tight on the bolt threads. Am I correct? #3 The biggest problem I had was lining up the two bolts on the drivers side of the pump. My wife had a doctor appointment in two days so there was no time to order from you, so I bought a new water pump from a local auto parts store. Even though it looked identical to my old water pump, it appeared that my new pump was binding against the side of the A/C compressor mount. I noticed that when you compared your old and new pump, the molded casting was a little different. Mine looked the identical but I think the outside of the casting had a bit too much metal on it. I tried loosening a two bolts on the face or the A/C mount but it didn't want to budge. I finally used a piece of wood to pry the pump slightly to get it into place. Removing the idler pulley allowed me to see the bolt holes a lot better on the block and allowed me to manipulate that small hose that you said was a pain to deal with. Have you ever had this binding problem and how did you solve it? Thank you for your help. God bless. James in Houston

Extremely helpful. Take it from me,...you also want to remove the idler pulley (one 14mm bolt)...gives you access to the bypass hoses. By the way...I would ALWAYS use RTV if I were you...

I have a 96 k1500 5.7 and yall have helped me fix everything I have needed to on my truck. Thanks so much!

Here is a great tip ! Take the old bolts and cut their heads off. Then thread them into the holes about 1/4 in. or so. Now you can slide the new pump on. Install new bolts one at a time.

Awesome video and clear views and real world mechanic experience right here!!! Makes things feel like you had a mechanic class online. Very nice work!!

That's why I love my '96 Chevy Silverado c1500 5.7 l as opposed to some other vehicles that water pumps have to be changed out on. The water pump on this truck is very easy to change out and they're not expensive at all. It's not necessary but usually if I'm changing out a water pump I also change or at least check the upper and lower radiator hose and replace both if one looks like it's going bad or getting rock hard without any pressure. I know when I changed a water pump on a '90s model Silverado we went ahead and changed the thermostat the water pump obviously both upper and lower radiator hoses the rubber on all the hoses that connect to the valves on the water pump and a new serpentine belt that way there will be no problems and believe it or not that guy drove around for almost 200,000 miles before needing a new engine on that water pump and belt and hoses.

Just changed my water pump on my 1996 GMC C1500 5.7 ltr. Only comments I have is to remove 2 more bolts on bottom fan shroud to remove it and it will give much better access to drain cock and makes it easier to remove lower radiator hose. Also break 4 bolts on pulley before releasing belt. Also remove idler wheel and heater hoses will be easier to get to. Other than that all is the same. One hour job if all wrenches are readily available.

Good video but is much easier to undo hoses if you remove pulley whilst still on the vehicle. You can remove idler pulley too for even more room.

Thank you for all your great videos making everything very easy for people

Although I really appreciate repair videos from 1AAuto, this video has a serious risk that most DIY'ers may not be aware of, plus one more thing to make removal of a top hose easier. First of all, removal of the top left hose would have been much easier if you removed the stationary belt pulley--very simple removal with a socket, that allows easy access to the clam to remove the hose. But, the more serious issue that was not shown for preventing damage was in the removal of the stuck water pump. After the four bolts are removed, that water pump can be very stuck to the engine block. The danger here, that the video FAILED to inform, is that tugging and pulling on the water pump can cause a sudden release, sending the pump into the radiator! It happens a lot! And, thanks to this not-so-well video, it happened to my nice new radiator on my Tahoe! The viewer should be forewarned to place a sheet of masonite or thin plywood over the back face of the radiator to protect it in such a new event, OR, loosen the bolts 3/4 the way out, then knock the pump loose to avoid a catastrophe. This video was not well made and created an unnecessary risk and the loss of a near-new radiator for me. NOT happy with this one--you folks owe me a new radiator! Also, all my mechanics say you left out one important step--you should add gasket sealer to those gaskets! They often leak if you don't. Very poor training video leaving out crucial steps!

Thanks, again! And for all the good comments info from others, these video’s make life so much easier.

Thanks for the info. Putting this on today while it’s 7 degrees out.

That's a great tip about putting tension on the belt to hold the pulley while loosening the fan . A lot easier than trying to put a piece of flat steel between two of the pulley bolts .

Well this super helped me. Got 87 suburban with a 350 pumps going out and have a bad wobble to it. So glad yall explain how to take the studs off cause that was my head scratcher lol

I wanted to thank you guys at A1 for the video work you have provided the world. I am currently using your "Head removal "video for my 5.7/ suburban. It has been such a great reference and has helped me to be more confident in removing and having my heads rebuilt. Again, you guys are all great and love the pace and detailed info when disassembling and assembling. Keep it up. Cheers and GO OILERS GO LOL. Dino

Thank you. Changing it tomorrow. Appreciate the help, that’s awesome.👍👍🇨🇦

Cant do as much on these new vehicles. anything after 1980 is new to me. But when i do decide to do it myself, these videos are the best tool in my box. thanks

Awesome! now to just do this in -10 degree weather. Thank you for the videos, you guys are lifesavers!!!

Nice fan clutch technique. Thank youuuuu!!!!

what a simple great location, I have a Sonata and darn near need to take the engine apart

Thank you so much so helpful!!

Hey I was just letting you know that you removed the center idler pully you would have so much more visibility on your hoses and water pump bolts!

Thank you for the help 👍💯

Good step by step video definitely give a thumbs up

thanks this helped out so much

Great video I love 1a💪💪

very good

You forgot to mention to put RTV on the bolts. I saw that you did it but did not tell why. RTV seals the water jacket.

Thank You Thank You

What u think about changing the thermostat and belt while doing the pump

Other than that , your video is awesome !

About how much coolant did you use to refill?

Excellent

I Love your instructional videos. but why isnt doing these jobs ever that easy. lol

Will this work for the same engine but in a 2000 Chevy k2500

I wish you guys would demonstrate on the 2500 7.4 trucks

Did they not use a torx wrench on the water pump pulley?

Thank you! That was lovely

Got to get my 97 chevy Cheyenne 1500 water pump replaced got a guy that says he can do it for $200 part fluid +labor is that asking too much or what?

thanks!!!

What should the wrench size be for the fan? My adjustable wrenches are Garbo and won’t hold in the proper measurement

Replace those small hoses at the same time ...saves you a headache in the future ....an once of prevention !

Awesome hel

What is the cap and funnel called exactly to get the air out of the system, and are they available at the common Oreilly's? Thanks

I wonder how many people heard "fill the overflow" and actually filled it all the way up? lol

1A auto is Da Best!!!

Do you not use RTV on these newer engines

How long does this process take?

New pump going on 98 gmc Sierra 1500 with 265,000 miles.

Well I couldn't do ours none of my open end wrenches fit to take off the fan so I put the old belt back on until we go buy the tool that's all what was stopping me from fixing ours

Do we not need to use any gasket sealer?

Fan clutch disassemble tool and air powered hammer or even hammer would have been much easier and without having to put extra unwanted upward tension on tensioner . How many tensioner's have failed weeks or moths later??

Is there a reason why you didn't put water pump gasket sealer , on the gasket side going back on to the pump ???

Will this work the same as a '89 K5 Blazer?

Will this fit on a 2000 5.7 z71 Tahoe?

I didn't check my gaskets after I put it on but it's not leaking anywhere so I'm assuming there good 🤷‍♂️

I have a question. What is the part at 1:21? Its a big cylinder

Whats the name of the pully next to. The alternator?

How do you know if your water pump is serpentine belt driven or timing belt driven? Trying to buy a pump from o Reilly’s and I’m clueless. Lol

Where is your shop located at

Why the person who talking never say how the gasket goes on.The gasket has a flat surface and a bulk side.So which is which.Flat side to pump or block.Whay type of sealer on the gasket.This is very crucial.

Can any body help me with info for how to break lose the fan I TRYED doing it just like this an it won’t break lose any hints

what size nut is that fan nut?

Does this work for a 95

I installed a new water pump and now my AC blows straight hot air no cold please help thanks

Its pretty much the same steps for a 95 , right?

hello I have 04 escalade. It overheated and I changed out water pump, thermostat, serpentine belt and AC belt and did the normal steps. I started to start my car and it wont start but instead makes a loud clunk sound! Can you please help me?

Not to hard

You glossed over and/or failed to address all the important stuff.