How To Replace A Water Pump And Thermostat On A Chevy 2500hd With 8.1l Engine

Brian Eslick from How to Automotive www.howtoautomotive.com/ takes you step-by-step through the process of replacing the water pump and thermostat on a 2001-2007 Chevy 2500HD pickup with 8.1L engine.
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Owing to factors beyond the control of How to Automotive/Brian Eslick, it cannot guarantee against unauthorized modification of this information, or improper use of this information. How to Automotive/Brian Eslick assumes no liability for property damage or injury incurred as a result of any information contained in this video. How to Automotive/Brian Eslick recommends safe practice when working with power tools, automotive lifts, lifting tools, jacks and jack stands, electrical equipment, blunt instruments, chemical lubricants, or any other tools or equipment seen or implied in this video. Because of factors beyond the control of How to Automotive/Brian Eslick, no information contained in this video shall express or imply warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or information contained in this video is the sole responsibility of the user and not How to Automotive/Brain Eslick. #howtoautomotive

[@lauraswan125]

Best diy video hands down , no nonsense, listed all the products that you used and explained the repair so easy that I felt comfortable doing it myself, the torque specs, pushed me over the edge to do it, and came out perfectly, thank you so so much , I just subscribed to your channel. .. thanks again..... I only weight 115 lbs so I did need some help from my brother to loosen the fan clutch nut, but other than that, all me..thanks again.

[@Toddderose]

Great video. I own a 2002 Silverado 2500HD, with the 8.1 liter. I have about 242,000 miles on it and the water pump just started to leak. You would get double thumbs up if there was that option lol. I'm gonna get all the parts together and get the repair going. Thanks again, keep the videos coming.

[@HowtoAutomotive]

Todd DeRose If one comes in the shop I’ll film it. Thank you for watching!

[@MORIN1964J]

Thank you. One of the best how-to videos I've seen. No wasted time, very good video angles, just the facts jack! Cheers

[@TimHeagarty]

Good video. To the point, no stupid music. Very helpful.

[@HowtoAutomotive]

Tim Heagarty thank you and thank you for watching!

[@terrykuehn2686]

Great video on water pump swap and hose! I have a 05 Avalanche with the 8.1 in it and just had radiator issues with it crack towards the top on the thermostat side so I'm ripping into it and think going to do the water pump and hoses too! Great job I also like my Milwaukee tools!😉

[@deangrell6789]

Great details, easy to follow, and made this job a piece of cake! Worth noting, when draining the coolant via the petcock, there is actually a rubber drain hose that runs vertically up the side of the radiator. Fish that out and down into your bucket and you won't make such a mess. Additionally, you will get more coolant drained out. Put the hose back in the upright position and close the petcock, then continue on! Thanks!

[@alejandrovelazquez4501]

Thanx you so much, great vid. Explains everything. Shows and tells you absolutely everything you need to know and what you need.

[@SuperChrisssssssss]

Got my subscription, super straightforward and clear

[@joen5332]

Great video if for when my water pump should go out on my 2003 Silverado 2500 heavy duty I definitely will do it myself right now the truck has 84,300 miles on it I'm also going to subscribe

[@ZacharyWedel]

Thanks for the easy to understand video. It helped me tremendously.

[@Rickysa0]

best video on the net

[@samho9318]

Thanks for sharing, your video is one of the best out there, attention to detail, torque spec. and with all the part list out will definitely help out us DIY here.

[@samho9318]

You have a new subscriber, really love your channel. Best of luck.

[@Nothingtoya]

Thankfully GM kept this easy to replace. My stock water pump went out at 252,000 miles. These are definitely some great trucks.

[@HowtoAutomotive]

Josh B You got your moneys worth out of that pump

[@loganbane6908]

came to watch this video for the first replacement on my 02 at 256k lol

[@micahwatson9017]

My 2002 Sierra’s original water pump just started leaking at 290,000 miles. First coolant issue on this truck....besides a faulty coolant tank covered under warranty the first year I own the truck.

[@Nothingtoya]

@@HowtoAutomotive I certainly didn't get my money's worth out of the second one though. Granted it was a parts store pump. The replacement went bad 50k later and at the same time, it started to have transmission problems. It's now sitting in my back yard and I replaced it with a 2014 Ram 2500 with the cummins, fully deleted and tuned of course.

[@freddyalvarez5956]

Great video! Thanks for the help. Very well explained.

[@HowtoAutomotive]

Freddy Alvarez thank you. Did everything go smooth for you?

[@tylerclark7207]

Thank you so much for this video. Big help.

[@HowtoAutomotive]

Tyler Clark glad the video helped. Thank you for watching!

[@805jondoe]

My 2002 avalanche Chevy 2500 has the Same everything like the motor in this video . I'm having a hard time finding my engine cooling temp sensor. Can you please do a video on that one ect sensor please.?

[@colteninglet8349]

Hey man I loved the video. I replaced the water pump/fan clutch/thermostat/ and both belts. After doing so no more leaks but now my temp jumps from like 160 to 191 then back to 160 sometimes in between. It didn’t do that before. It was a moto rad fail safe. Replaced with 2 different ac delco gold ones and now back to a new moto rad fail safe and it’s still doing it. I’m thinking maybe the fan clutch is to big if that makes sense. It seems to be a louder roar from the fan then before. Lemme know what you think if you have time. Thanks sir. @howtoautomotive

[@ericg4915]

Great video

[@chrisistocool1]

Thank you for the video. You saved my bacon

[@HowtoAutomotive]

Chris Proffitt I have a video is helpful. Thank you for watching!

[@jsil88dog]

what control module is that? I dont have it in my 2500 suburban 8.1L

[@8barbies779]

Brian - can i take a second & tell you how much i appreciate you. i have an 01 2500HD with 8.1 and it's hard to find good tutorials, i just can't tell you enough how much i appreciate the time you took for this. i'm going to check out your channel, do you have more vids on the 8.1? if not do you know of any other users that do? thanks again Brian:) -barbie

[@HowtoAutomotive]

Glad you like the video. I don’t have very many videos on the 8.1 and I don’t really know anybody making videos on them. Sorry.

[@josemedina9523]

My 2004 8.1 l motor crank pulley was filled with oil cuz high mileage real thick I cleaned it off would that make off balance if didn't get dirt in some areas just want to no cuz now my motor is slugger and bouncing all I did was water pump nothing else let me know

[@wolfbear572]

Just bought a 02 Avalanche with 8.1 it makes a loud roaring sound when on the throttle. It sometimes go away after I’m on the highway at about 75mph after about 4 miles. Could it be water pump or ac compressor?

[@HowtoAutomotive]

It would be hard for me to say without hearing it for myself. One thing you can do is take the drive belt off and spin all the pulleys by hand and see if any of them feel scratchy or make noise.

[@wolfbear572]

I think I may have narrowed it down to fan clutch. And maybe thermostat my temp gauge doesn’t go over 180 and last time the noise stop. Engine temp went to 210

[@daltonmarshall3083]

Does anyone know the size of the water pump bolts

[@scottbell8173]

Awesome video...doing a friends Avalanche water pump tomorrow...I'm a heavy equipment mechanic and old school big block Chevy guy...haven't much fooled around with the newer stuff...I'm stuck in the 60's and 70's 427 and 454 bow ties in Chevelles,El Caminos and SS Impalas...'67 thru '70...ok those are my cars...so I don't have time much for other stuff...but this was super helpful...I will be referring back to it tomorrow to get job done...LOL!

[@HowtoAutomotive]

I’m glad the videos helpful. Should be a walk in the park for you. Sounds like you have an awesome car collection!

[@OsmanParvez]

For a skilled mechanic, how long do you think this job would take?

[@thomasfraser7716]

Do you really need to replace the factory hose clamps? The old ones seem to fit better.

[@HowtoAutomotive]

Thomas Fraser If the OE clamp is in good shape it’s OK to reuse them. I’ve had a few of them leak on me so I like to change them.

[@harleetuttle799]

Keep constant tension spring clamp or replace it with a new one. NEVER expect a customer to get in there and service worm drive clamps! Spring clamp will keep tension on hose as it compresses over time.

[@shawner2713]

I'll be damned if my fan came off nearly that easy. My 05 also didn't have a petcock.

[@ramtrucks721]

Do you always wear Nitrile gloves?... They dont breathe... My hands get too sweaty

[@HowtoAutomotive]

HEMI LOVER most of the time I do. I guess I'm just used to them.

[@carlnehring5271]

You must have been wearing a mask pretty hard to understand you with speakers up the way up even