Alternator Replacement - Chevrolet Avalanche 

I was stranded at my deer lease this weekend with a dead battery in my 2004 Avalanche. I wasn't sure if I had a bad battery or bad altenator. None of us are mechanics. My nephew found this video on his iphone. Saved us lots of time and money. Replaced the alternator as instructed. Thanks for posting.

Not sure if you’re still making videos, but thanks for this. This really helped. I couldn’t figure out how to release the tension. Thanks

i would like to add my kudos for your fine video depiction of how to remove the alternator. one thing to add putting in the new alternator in the base there turned out to be quite complex as i could not get the holes to align. Since the part fits in there quite snugly. I finally aligned one and put in the bolt & thaf made things fall into placd (20 min. latter) . The tensioner thing was masively usefull as I would have never guessed this. you saved me a massive amount if $$$$ and really gave the old machismo a boost. Many thanks .

Saw this! Replaced my alternator for the first time in my Avalanche. Thank you sir!

Thanks a million for posting your video !! Especially about the belt tensioner !! I had seen one other vid and they didn't even show how to take anything off !! I had the alternator off in a flash !!

I purchased a premium alternator, and I live in Canada. Born in Vermont. Thank you for watching.

Awesome video. Saved a lot of money and learned something I've been interested in at the same time. Thank you!!!

Thanks for the video, ran into the same problem. I figured it was the alternator, good reassurance now.

Thank you much for the video I saved a lot of money Sir!

@sms373 To a GM service manual, yeah its a 325. In really picky terms its actually a 325.1 lol, and thats no word of a lie. The older trucks had a real 327, and it was considered a 5.3, In my opinion its the same thing just more power then the old 327's with the conventional 4 barrel Rochester carburetors. In my mind its just 2 cubic inches off, but I still consider it a 327. Same like the Olds and Pontiac engines. 302 Pontiac, pfft looks and performs like a 305 to me and is still a 5.0 liter.

found out it is slightly bigger and compensates for the smaller pulley no slipping or anything like that stays at a constant 14.4

thanks for your help.

Chevy specs on their websites for avalanche 2002+ are 145amps. And a new bosche is only $148 not including the $41 core return

Great video,how do you figure out if its a 110 or 145 amp alternator ??1

Thank you!!!

Did that battery not charging go away? I'm on the side of the road right now with the exact same problem.

Question... after changing this would I need to recharge the battery before I start this again. ?

How did the car start with a bad alternator

do i need a smaller belt for a 250 amp alternator in a 2003 tahoe with an overdrive pulley it had a 145 amp stock

I hope I can do this myself I'm having the same problem

is that a open end ratchet wrench?

Why didn't you have a test done on the alternator to make sure it was bad before buying a new one? Any parts store should have tested it for free for you.

simple change 10 minutes and couple beers oh yeah beer takes the most time lol

110 Amp, $350? Why? One year warranty?

Texas Dallas was like 75 at pep boys

you must live in canada, based on your accent and how much you paid for the imported alternator...lmao! I priced one for $100 here in the states. First look.

thank you!!!