Radiator Replacement 2000 GMC Sierra 1500

Please know that I am not a professional mechanic or car guy. This is not professional advice. I am merely a backyard mechanic. Work on cars at your own risk.
In this video I diagnose a coolant leak and replace the radiator in a 2000 GMC Sierra SLE with a 4.8l Vortec engine.
This is also the same for any 1999-2004 GMC Sierra 1500 or Chevy Siverado.

[@dennismclain1565]

Great video!. Clear directions, good camera work and very good sound.

[@edwincgov]

Awesome video. Paid $200 for parts, some tools and spent about 2 hours working on it. Better than the $600 that the shop quoted me. Thank you so much!

[@kv200]

Awesome video that diagnosed my problem, exact same crack point as you but mines twice the size... And now I know what I'm getting into and have no worries behind it! Thank a lot Scott!

[@hshipes]

Great job, thanks. I appreciate your clear and calm approach!

[@annemarieminou7680]

Clear explanation and easy to follow ,fine work ,thank you

[@MrUr86ed]

Well boys! I may have sent her a little to hard this time. Oh my land! Hope my radiators good!!! Nope she’s done! Will be doing this to my truck soon. Like others same location of leak as yours. Thanks for the video.

[@user-gn2fd5gs6m]

Very Helpful! Thanks for your knowledge😁

[@steveonumber1788]

Thanks Scott Your video was very helpful It's August 12 on a Sunday morning and im getting ready to replace the radiator on my son's 99 Chevy Silverado.

[@gypsysneakerhead3091]

6:29 thx finally someone explained the hose that sits on the side of the original radiator and what to do with it ! Thx a bunch !!

[@deguz1414]

Thanks for the great video. Looking forward to doing this job on my 01 Yukon this weekend👍🏼

[@Tebquavpojcawmsiavchannel]

Thank you much! It helped me to be able to solved my leaking transmission lines. Great job!

[@jimvicklund7546]

Perfect and right to the point. 👍

[@jameshamrick5660]

Thank you, helped me change my radiator this morning with ease!

[@TEX12REDD]

Thank you sir really clear instructions. Appreciated.

[@christopherhendricks4369]

You covered a lot. Thanks for explaining the trans cooler lines

[@tonygonzalez7029]

DONE, thanks....went smooth as butter...

[@ip5232]

Good Quico and simple explanation Man thanks!

[@bobbyjonson2944]

Thank you sir starting this weekend on this one.

[@chevyimpala_04]

Thank you, just what I needed to know about this repair job. Transmission lines specifically. 3rd video I watched and the last. 👍

[@ischmel3884]

Thanks for the Video, Same truck, same CRACK.... Wasn't sure how the trans cooler lines came off, know now! Thanks again for the details.

[@clintwalker5804]

Me too

[@nestorjralvarado4583]

Same crack same spot thanks you save me alot of work

[@aaronruiz9189]

Muchas gracias por tu video me fue de mucha ayuda

[@nick19K]

Great video.

[@tonygonzalez7029]

Geeat vid...real informative...loved it...thanks

[@buckshotbarns]

Great video. Thanks

[@brandonhensel1301]

great video love it !!!

[@oldguywisdom2904]

mine cracked in the same place . good to see how to disconnect transmission lines. thanks

[@izzymoney85]

Thanks Scott you did a great job man I appreciate your work Sir 🫡

[@zmanphx]

Doing this on my '12 Tahoe. My Tahoe has the also engine oil cooler on the driver side of the radiator along with dual factory electric fans.

[@bullyelfuerte]

Good video , thank you .

[@johnonmlen]

Good video

[@geraldlee7323]

Thanks for the video Scott. It's a big help and beats the heck out of a Chilton manual. I'm familiar with the small c rings for the TC lines but wasn't aware that's what they were so your video certainly saved me some busted knuckles and an anger management issue - cars and women, I swear . . . . .

[@christopherhendricks4369]

Glad to see you didn't use dexcool.

[@michaelkramer8187]

Hey I have the same truck color everything. Same crack n everything. U said only took three quarts so should I just get the 50/50?

[@hoss1947]

If you use concentrate coolant, you should use distilled water, you don't want chlorine, or other chemicals in your cooling system.

[@danieltopete2758]

Hell yea

[@chandlertilton2427]

Damn this is easier than my pos Mazda never going back I love my pos chevy

[@JohnnyMacTahoe]

It probably cracked when the straight water you were running froze! ha ha But - great video, thank you.

[@ScottsGarage17]

Straight water is what got me home. It had full coolant before the leak.

[@asvpxmi6uel]

I don’t have that air intake line is the v6 different from the v8 radiator or could I just but a cap on to it? It’s my daily and it leaks coolant through that

[@jonathanlawson4667]

If yours don't have that line you can cap it without any issues I'm not the poster of this video but I am a 15yr tech

[@asvpxmi6uel]

Jonathan Lawson ok yea that’s what I ended up doing and so far so good 👍

[@BXDT99]

The word is shroud Scott lol

[@bradleymcdonald4829]

So where exactly is the engine oil cooler lines?

[@alexvloggs6087]

Exactly what happened to mine

[@Made_In_USA]

You were only able to add 3 quarts of coolant? Should be considerably more, if I'm not mistaken.

[@BigDaddyTuck]

Sean Stranger-Thorsen yeah i believe he meant 3 gallons or 13qts

[@AdrianGonzalez-ew8gu]

Got a link to the radiator?

[@98chicagobears]

I got mine from auto zone

[@BigDaddyTuck]

Believe he meant 3 gallons or 13qts, per a 4.8L model

[@jmcaudill1977]

Hello, we have to replace the radiator on our 2000 GMC Sierra 1500 5.3L Extended Cab, and your video is extremely helpful. Did yours have a 5.3L motor? When searching for a radiator online it keeps talking about a radiator cooler. Which has now got my mind boggled on what type of radiator to purchase. I have no idea if it has a radiator cooler or not. Nor do I know how to check if it does. Our GMC Sierra 1500 5.3L, extended cab, is not 4 wheel drive, just 2 wheel. I do know it's either a 28 1/4 or a 28 1/2 inch radiator, will have to measure again to be sure, but my biggest concern is how to tell if our GMC has the radiator cooler. Can you offer any advice on how to figure out if it does or doesn't? What to look for, so to speak. $95.00 for the radiator you purchased on Amazon would be perfect, if we're able to purchase the same one. I am an Amazon Prime member, and know that I could return it, if there were any issues. If you could please help, I would appreciate it immensely! I also can't thank you enough for making this video!! The way you explain what each part is and does, and how to take it out and put it back is extremely important and helpful to me. Thank you so very much!!

[@ScottsGarage17]

Hi, thanks for liking the video. Below is the radiator I ordered. If I can I will also add it to the description. According to Amazon it fits the 5.3 l. My engine is the 4.8.l. I am not sure what a radiator cooler is. The only thing I can think of is that it is in reference to the coils that cool the transmission fluid which the below radiator has built in. I will do some more research however and get back to you if I find anything. Sincerely, Scott www.amazon.com/gp/product/B01MRKG3BF/ref=oh_aui_search_asin_title?ie=UTF8&psc=1

[@jmcaudill1977]

@@ScottsGarage17 Thank you so much for all your help! I greatly appreciate all the help I can get. Got to try and fix this myself, because I don't have money to have someone do this for me.

[@jmcaudill1977]

@@ScottsGarage17 Thought I would let you know that you've been a tremendous help. We ordered the same radiator, for our 2000 GMC Sierra 1500, which got to us really fast, and it's a perfect fit even though we have the 5.3L. Thank you so much for your help. My only question now that I am searching for is how many gallons of the Prestone concentrate should we purchase to put into the new radiator? It sounded like you said 3 quarts, but am not sure if that's right. When I Google search it gives me wonky answers and nothing definite. Are you able to help please? Thanks again

[@RubenRodriguez-lc4ky]

What about the transmission fluid lower line? How much fluid leaked out? How much transmission fluid did you have to add? Or did none leak out because the engine wasn't running?

[@ScottsGarage17]

On my truck very little leaked out. You should check your transmission dip stick after replacing the radiator, though to make sure it is within tolerance.

[@RubenRodriguez-lc4ky]

@@ScottsGarage17 Thank you very much. Thanks to your video, I saved a bunch of money, & did a first in my 65 year old, adventurous life--changed my radiator! Did not have to add any transmission fluid. Some points I didn't remember if they were mentioned in the video... (bought the radiator from AutoZone, the $170ish version with transmission cooler but not oil cooler, with limited lifetime warranty) Anyway, #1. Did not have to reuse the drain cap, nor the two little c-pins from the transmission lines. However, I did have to re-use the two big pairs of grommets at the top corners of the radiator. After it was half-installed, I noticed the thing would swing somewhat at the bottom, then I realized I needed to re-use the two huge circular grommet feet from bottom that fit in 2 of the 4 holes in the chassis bed. Thanks again!

[@davegee4129]

I'm assuming that there is transmission fluid in the radiator from the transmission lines doesn't that mean you need to add transmission fluid

[@ScottsGarage17]

Yes, you are correct. Not much will leak out from disconnecting the line, but whatever is in the radiator core will need to be replaced. Check your transmission fluid dip stick.

[@bing12345678901]

Easiest radiator to replace. Not sure why you removed the top front portion of the shroud, unnecessary step. Also, drain the radiator before doing this.

[@98chicagobears]

I think you should of used dex cool for that truck

[@pighunta9980]

gino capone dex cool iss trash

[@98chicagobears]

no kid it's one of the best . it just got a bad rap because when the new GM came out the gaskets came out cheap and GM HAD TO CHANGE THEM. and now the better gaskets work perfect with dex cool I have a GMC SIERRA SHE GOING TO BE 20 YEARS OLD AND SHE ONLY TAKES DEX COOL AND SHE RUNS BEAUTIFUL TRY IT OUT. AND YOU WILL SEE. ONLY IF YOUR TRUCK ASK FOR IT IF NOT USE WHAT YOUR BOOK ASK FOR.

[@ivantinoco2643]

Why aren't you using dexa cool?

[@thatsallfolks3115]

I thought gm used that orange coolant? 🤷🏽‍♂️

[@dwainedillard5021]

I thought this system had a vacuum set up and can’t just plug and play like you did...