Subaru outback idler pulley Videos

• 1. Idler Pulley Removal and Replacement - (aka tensioner pulley) Subaru Legacy GT and WRX
• 2. Subaru WRX STi idler pulley ac bearing air conditions belt serpentine
• 3. Service Series Part 17 2.0 Subaru WRX ac idler pulley bearing air conditioning 2003 SVTWRC
• 4. A/C idler pulley noise on 2005 Subaru sti
• 5. Subaru Alternator Tensioner Block With Dayco Idler Pulley MORE BELT WRAP!
• 6. How To Install Replace Serpentine Idler Pulley Silverado Sierra Tahoe 4.8L 5.3L 6.0L 1AAuto.com
• 7. Subaru WRX Replace Idler Pulley and the AC Belt
• 8. Subaru WRX Bad A/C Idler Pulley

Idler Pulley Removal and Replacement - (aka tensioner pulley) Subaru Legacy GT and WRX

User Comments

Alex Rios commented on 23 Sep 2013

I have an 02 wrx and it has a boost guage. Im gonna replace the pulley tomorrow but that probally wont fix my lack of performance. My CE light isn't even on so its hard to say what it could be. Somtimes when i go into first, it almost feels like it misfires and takes off but without as much pull. It's only sometimes though. Not really sure what to do. Maybe i should just take it in to get it checked by a tech

John Hardley commented on 23 Sep 2013

Hi. A bad pulley would not cause a noticeable drop in performance. If it did the bearing would heat up and melt and you would know all about it. I have had loss in performance in my car due to the knock sensor, low octane fuel, 02 sensor. Being a highly strung turbo the computer is pretty fussy. If you dont have a boost gauge, get one. This will tell you a lot about what is going on.

Tom Fredericks commented on 19 Jan 2014

I just took out the idler arm pulley on my 2002 Impreza Outback Sport with 2.5 l engine. Even though it's a different engine from yours, the idler arm assembly adjustments and removal is very similar and your video was helpful, thank you. I'm running with the idler pulley and belt removed now while I track down a replacement - only loss of functionality is the AC.

SoulFullofGuitar commented on 18 Dec 2013

Hey John, thanks for the video. I am not a mechanic either but between your video and talking on the phone with my best friend (who is a mechanic, but lives 4 states away) I was able to replace my idle pulley on 2002 wrx wagon. A very simple job and saved me about 80-100$. The part was 32$. So thanks! 

Mike Conroy commented on 31 May 2014

U.S. 2003 Outback Impreza, same belt covers, same idler pulley, same pulley assembly arm to tension down the pulley, everything was the same. Thanks for the video, guessing I saved about $250 from going to even the cheapest mechanic

Alex Rios commented on 23 Sep 2013

I have the same problem, but did you lose any performance when you drove the car before you replaced it? I kinda feel that with mine. I'm just not one hundred percent sure it's cause of the faulty pulley. Great instructional video man!

Alex Mearns commented on 29 Jan 2014

This is the first instructional repair video I have ever found featuring a JDM twin turbo TA-BH5, either in English or Japanese; I have the exact same car and would love to see more videos like this!

KrGsMrNKusinagi0 commented on 28 May 2013

My 04 wrx is making that same noise the whine.. And it gets louder when you rev.. I hope its the Idler pulley and not the Timing belt tensioner.. Even though I have already had the timing belt replaced

portlandgoblue commented on 15 Sep 2013

Well done video including the closeups of the belts/pulley. My subaru has the same whining noise and I'm hoping it's this Idler Pulley.

John Hardley commented on 15 Sep 2013

Thanks. It makes a pretty bad noise. I was pleased when it turned out to be such a simple fix. Good luck!

shenagles commented on 26 Jul 2013

what part number was the roller you used?

codzilla85 commented on 29 Jan 2014

Thanks alot very helpful!

John Hardley commented on 25 Sep 2013

73131FC000

Subaru WRX STi idler pulley ac bearing air conditions belt serpentine

User Comments

svtwrc commented on 07 Oct 2014

@Manny C sounds like you have some rust. Try a breaker bar and 12 mm socket , I had mine already loose when the video shows me use a wrench. It was on there , it's not that easy as in the video. The wrench gave me more camera room. Check my other video on this as well , I made a video for the a WRX ,it's the same procedure better camera.

Manny C commented on 08 Oct 2014

I ended up stripping out the nut, so I took the whole bracket off. I took an 11mm socket and a hammer and smashed it on to the 12mm nut. LMAO I was able to get it off no problem after that. Other than that part it was no problem, thanks for the video.

Service Series Part 17 2.0 Subaru WRX ac idler pulley bearing air conditioning 2003 SVTWRC

A/C idler pulley noise on 2005 Subaru sti

User Comments

Jeremy Swartwood commented on 07 Jan 2014

Replaced this part on my car, this was the same sound, scared me, thanks for the post! I found a good video with details on replacing it here: A/C idler pulley noise on 2005 Subaru sti

Ryan Dougherty commented on 04 Mar 2014

Can you reply with the details you mentioned? Nothing is showing.

Subaru Alternator Tensioner Block With Dayco Idler Pulley MORE BELT WRAP!

User Comments

Joe R commented on 27 Oct 2014

You should add a lock nut on the bolt head side.

trendy bromandolorian commented on 24 Sep 2015

will you machine this part for my subaru?

How To Install Replace Serpentine Idler Pulley Silverado Sierra Tahoe 4.8L 5.3L 6.0L 1AAuto.com

User Comments

andrea russell commented on 02 Jun 2015

Thanks Mike! the diagram of the serpentine belt was just what we needed!

1A Auto Parts commented on 02 Jun 2015

+andrea russell No problem. Glad to hear it helped you out. 1aauto.com 866-403-3393

Subaru WRX Replace Idler Pulley and the AC Belt

User Comments

Suby Newby commented on 22 May 2012

I dunno, its dumb. I think they may have made it plastic to cut down on weight or something. I believe you can just buy the plastic part from the dealership though instead of buying the whole assembly.

cjretzler commented on 14 May 2014

I noticed that part of the old pulley is melted to the washer-bolt piece too. Were you able to get this off or did you just put it back together like that?

josh norman commented on 14 May 2012

@Suby Newby I got them off but the AC thing the tension bolt screws into broke. WHY WOULD THEY MAKE IT PLASTIC!!!

Stephen Gelinas commented on 18 Jun 2014

To be honest,the video was way too shaky.You did help me a lot with the same exact problem.Thank you

Suby Newby commented on 14 May 2012

Which bolts? All of mine were really easy to get off. Try soaking them with PB blaster

josh norman commented on 13 May 2012

I can't get the bolts off a Subaru forrester 2004 they will not loosen WTH

Subaru WRX Bad A/C Idler Pulley

User Comments

KrGsMrNKusinagi0 commented on 31 May 2013

I just pulled mine off it spins decently but I do hear the similar noise when I spin it.. I put the altenator belt back on and started it the car Doesn't whine with the ac belt off which makes me thing the idler pulley is bad.. The ac spins...

schokoprinz commented on 06 Apr 2014

wow sounded just like mine today that i pulled off. car sounds great now.

Hayden lovett commented on 25 Nov 2012

Why don't you spin it one more time