2014 Toyota Tacoma 4.0L. Noise In Drive Belt Area. Replace Belt Tensioner 

I just did this job a couple of months ago. Pull the battery first then pull the alternator. This will give you more room to see and work.

Your drive belt is on wrong, the smooth part of the belt ride on top of your tensioner

Glad I saw this video when I was going to replace my belt tensioner, made me realize that I probably just needed a new bearing and that was all I needed for my '05 Tacoma, great video!

I was bad enough that the ac compressor had to come out, but then also the alternator? The design gets worst by the minute! Great tip to fit alternator back on Phillip. Glad it all worked out in the end!

I know this is a year old but good job!👍 my 07 tensioner started making noises also but not that bad. Figured I’d search a vid on it and voilà! Thanks for a quick straight forward video. 🤙

Well I did it, and as some other have said, it's no fun time. The compressor both bottoms bolts broke. That problem alone took almost as much time as the job itself. But I got rid of the rattle, everything is back to normal and the tensioner was the culprit. Since there was next to 0 tutorial on the subject, this chanel provided much help. Thank you mr. Bailey. Cheers.

Wow nothing like taking something simple and redesigning it when you said built a truck around it I spit out my coffee lol thanks for sharing your knowledge and skills

I just wasted 2 hours of my life trying to pull the AC compressor first! Pull the alternator first! Makes life way easier.

I have Same rattle noise on 2002 f150 and Chevy express 2008, thanks for you video.

Thank you. Replacing the timing cover, thought I had to remove the strut or motor mounts to be able to get that compressor off. Lower bolt is an ass

This was very helpful, thank you! My truck is making the exact same noise and I was suspecting the tensioner but this confirms it I think. How long would you say it took you to replace?

I have a 2013 Tacoma and about to do this same maintenance. I had a question... wondering why you chose to go below/from the wheel well instead of from on top? I'm a driveway mechanic, and it's not as easy for me to lift the truck. Overall great video though, I'm glad to have seen it, thank you for your specificity

Mine started this but the A/C doesn’t have to be on. Hope its not the one you had to replace

Hey mate quick question, doing that job right now and the top bolt where the alternator goes the upper one is missing, where those the same size as the other ones?

Belt needs to go under the top right idler and over the bottom idler, smooth side of the belt should always ride on those smooth idler pulleys

Nice

Hi Phillip. I had a hard time to localise that noise either. First I thought the tensionner pulley was bad, after I changed it the noise was still there. But your vid confirm the tensionner assembly is the problem. Thank you. And do you know what cause that horrible song if it is not the pulley ? How does this fixed part can produce a song ??

That lower idler pulley, the belt is routed backwards. It’s supposed to go over it with smooth side of belt on top not grooved on bottom

What's the part number for the tensioner pulley or for the bearings? I don't need the whole tensioner. Just the pulley or possibly the bearing.

So the engine casting has a hole for the ac compressor bolt and the other 3 are in the bracket? Never seen anything like that. If the bolt that goes into the engine casting breaks that would be a nightmare to resolve.

How many miles were on the truck? Just curious, am thinking of buying a 2014.

I thought the idler pully only mated with the blind side of the belt

I have to do this soon, anything you wouldve done different? thanks

Don't struggle with the ac bolts just take the alternator out it's easy

It looks that you routed the v-belt by the wrong side of lower idler No, this idles is not ribbed

You installed your belt wrong, It should go on top of lower idler pulley not on bottom …..

Belt is wrong on bottom should go around pully

Seeing that you couldn't even recognize the belt routing was wrong doesn't give me a lot of faith in your wrenching skills.

Toyota designed the belt tensioner when they were smoking crack! Worst possible design I ever saw! Toyota has been going downhill quality wise for a long time!!