This is a fast-paced tutorial for the alternator decoupler pulley on a 2008, 2009, 2010, 2011, 2012, 2013, and 2014 Dodge Avenger. But because they share the same platform this video would also be relevant to the Chrysler 200, Chrysler Sebring and Dodge Journey equipped with a 2.4 liter 4 cylinder engine.
Replacing the alternator decoupler pulley can fix a grinding or whining noise that increases with engine RPM. The decoupler has an internal bearing that fails and results in this weird sound shown at 0:21. The Dodge Avenger has a notorious issue with the alternator decoupler pulley. When this decoupler fails it can make a similar grinding, whining or moaning sound.
Since you need to remove the serpentine belt and the lower idler pulley to access the lower alternator mounting bolt, this is a good opportunity to replace them both.
Here are some links to the parts I install in this video:
Alternator Decoupler Pulley – https://www.oreillyauto.com/detail/b/gates-3728/charging—starting-16772/alternator-decoupler-pulley-15926/3691bef3a26b/gates-pulley/37018p/4334357/2008/dodge/avenger?q=Alternator+Decoupler+Pulley&pos=0
Idler Pulley – https://www.oreillyauto.com/detail/b/drivealign-3742/belts-hoses-16454/tensioners-and-pulleys-25070/pulley-idler-12829/f4e5ff97a50c/gates-drivealign-idler-pulley/36323/4347854/2008/dodge/avenger?q=36323&pos=0
Serpentine Belt – https://www.oreillyauto.com/detail/b/micro-v-3716/belts-hoses-16454/belts-25068/belt—serpentine-type-12828/c92a524fe09d/gates-micro-v-serpentine-belt/k061015/6286122/2008/dodge/avenger?q=belt&pos=3
I always perform repairs according the factory service manual. You need to have all the information (toque specs, testing procedures and schematics) to insure you’ve pinpointed the actual problem and to insure your vehicle is safe after you’ve completed your repairs. You download high quality factory service manuals here: http://shrsl.com/1llp5-11y0-aya4
Here is a list of tools I use in this video in order of which they appear: 15mm socket, electric impact driver, serpentine belt tool with a 16mm socket, 19mm socket or lug wrench, 10mm socket, pocket screwdriver, 1/4 drive flex head ratchet, 3/8 drive flex head ratchet, 16mm socket, 13mm socket, small hammer (not pictured), large flat blade screwdriver, 17mm Hex (Allen) socket.
This video features original music by KaiChow Lau. Check out his soundcloud here: https://soundcloud.com/kaichowlau
Lightning Fix is a fast-paced DIY repair series meant to guide people though repairs in a quick and effective manner.
Follow me on instagram @https://www.instagram.com/garretseesi…
You can listen to my original music on soundcloud @ https://soundcloud.com/user3041617
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Wouldnt it just be easier to replace the whole alternator then to waste days gettin that off
Thanks Garret, big help and excellent video.
Did your alternator stop charge the battery ?
This looks similar to the POS freewheel-in-one-direction pulley Ford used on the alternator of the 4.6 engine used in the Crown Victoria, (but at least they were easy to get at). Those stupid things sidelined many police cars because they would fail often due to the heavy load placed on the alternator by all the police equipment, the long periods of idling time and the high under-hood temperatures during idle.
This was my issue thanks!
This was a big help in replacing the decoupling pulley on my 2009 Avenger. Thanks!
I took mine off and it just spins both ways. How can i remove the pulley?
These videos r excellent!! But even better is when u talk. U have an excellent knowledge of stuff, and I would rather hear u telling is about your Pinto, or what u like about scooters. That ding ding music is not very educational.
When did Bam Margera become a mechanic?
That 10mm bolt was a pain in the ass (lol)
This is an excellent & straight to the point video. Thanks.
Thanks for this video my car barley started making this weird noise it not loud but I'm sure this is what it is gonna order everything this week and try do it myself
This was a really great before and after. My car sounds like its ready to go 100 mph in 6 seconds when I turn on my car ha ha.
What if your decoupler pulley wont come off? I'm using an impact wrench and a 17mm hex driver and it just keeps spinning
More stupid stuff on these new cars. I hate that they only run one belt as older cars have separate ones. Ac compressor lock up and still have a belt for alternator and water pump
Thanks for the Video as tomorrow I'll be replacing the de-coupler pulley, tensioner and idler on a 2.4 Sebring. All failed at the same time so I'll replace the belt as well. Many thanks.
Awesome video bro.
Awesome, i don't know of any other channel working on the avenger
Great information