@@CasselmanCanada I should note (for the benefit of others reading the comments) that I was working on my 2012 Jeep Patriot and everything you did applied to it as well. I am pretty sure it's common knowledge that the Patriot and the Compass are effectively identical for mechanical purposes, but I'll say it anyway!
@@CasselmanCanada yeah! I found out that if you Pull the alternator out underneath of the car instead of trying to pull it through the hole on the side it's way easier. Although now my radio is giving me weird troubles ever since I changed it
I hope you got that thing out soon after you took a break to post the comment. Sometimes a short break can bring new perspective to a job. I remember that frustrated feeling.
For a few weeks after the noise started the light was not on and it was still charging. But just the last day before I did the work the light came on. Fortunately it was only a short distance so the battery did not go dead.
Exact same thing happen to my alternator.I herd the OAD wasn't probably grease right from the factory before I install my alternator I will grease it over for longer life span.
I'm not sure where you are going to put the grease. The bearings are not accessible to the end user. It was the one-way clutch that failed first here. Good idea but likely too small and it is also up front where it gets all the snow, rain, dust and mud. And that clutch does not actually have real sealed bearings- just centrifugal weights on pins. Any oil or grease you put on would get flung out onto the pulley and belt and would cause slippage and belt burn. Sorry, don't lube it.
@@CasselmanCanada true as u say,....my mechanics actually weld the clutch so it would not slip nor make noise again, work great and belt work firm doesn't bounce as they say without stock pulley clutch.
Hello, I am currently working on my 2012 Dodge Caliber on the same issue. The car starting making this horrible noise coming from under the hood. I had never heard such a shrieking sound. I began inspecting where the sound was coming from. Let me share with you what I did. I turned the car on. I popped the hood. At first I thought it was coming from the power steering pump. I got an old piece of water hose around 3 ft long. I put one end to my ear the other end area to area inspecting for noise. The noise was not coming from the power steering pump. I moved the hose from pulley to pulley and noticed that the sound was not coming from the inspected pulleys. I got under my car and pointed the hose end to the crank case oil pan to see if maybe the sound was coming from a rod. No sound from the crack case oil pan area. The tranny was not making any noise at all so I didn't pursue that trek. I got back up from under the car and directed the the hose end to the alternator. There it was. The noise was coming from the alternator. I shut the car off. I next did some research on the internet as to why the alternator would be making such a shrieking noise. I found that the alternator has a decoupler pulley. This pulley engages with demand. And disengages with let off. Today I have been to two auto zones and one Mom & Pop local auto parts store doing some questioning as to which avenue I should take. Should I replace the entire alternator? I will add that the alternator is working. Not a single instrument panel light has come on even those the shrieking noise is coming from the alternator. Or should I just replace the decouple pulley? Yesterday, Tuesday Sept 14th 2021 I began working on the car. I lifted the car, secured the car and removed the passenger wheel. I then removed a dust, debris moisture cover which had four expanding bolts. When you remove this cover you have access to the belt tensioner pulley. I removed the serpentine belt by using an eye-wrench. I don't remember what size wrench. But it was around 5/8 in or in that area. Anyway, I removed the serpentine belt. I turned on the car. The motor purred like a kitten. No more shrieking noise. I shut the car off and called it a night. My next step was to venture on to UA-cam and see how to remove the alternator. Thanks to your video I will follow your steps on how to proceed in removing the alternator and fixing the car. When I eventually remove the alternator I will see if AutoZone or any other Auto Parts can check my alternator to see if it is the alternator making the noise or the decoupler pulley. From there I will do as needed. The Mom & Pop store quoted me $210 for a rebuilt Alternator which comes with the pulley installed. By the way, which Alternator did you opt for? A new one. A rebuilt one? Please respond. Have a great day. Thank you.
Once you get the alternator off, you will quickly see why it was so noisy. The decoupler should rotate only in one direction. Also at that time you can test the alternator bearings by spinning the alternator. It should rotate smoothly. To install a new pully you likely need to disassemble the alternator and use a special puller and a press to remove and install the new decoupler. And after that many miles the alternator brushes will be nearly worn out. My opinion was to just replace it with a rebuilt alternator. Get it done and forget it for many years to come. By the way after all that expense I did not bother with a new belt. It is still running.
@@CasselmanCanada I got my alternator repaired at a local shop. Had a new decoupler pulley and two bushings replaced. I installed the alternator, followed by the AC compressor and then the serpentine belt. I turned the car on while keeping an eye on the serpentine belt making sure it stayed on track when the car is turned on after a removal and installment -- it did. I left the car running a few minutes to see if any lights turn on in the instrument panel -- no lights -- good news. At this same time I did see that the ac was in proper working order. There was no more noise coming from the decoupler pulley. Including, I was quite impressed with the beautiful sound the engine was making. I shut the car off after a few minutes. I put the tire well cover back in place by snapping the two expansion plugs. I then set the tire and gave them five tire nuts a good leaning. I put all the tools, jacks, wood support blocks away. I turned the car on and went for a spin. I am here to say that the job has been completed and is to my satisfaction. Thank you for the video. Enjoy your Autumn.
This video was so helpful. Thank you for taking the time to make it. You made it a quick job for me!
Glad it helped!
@@CasselmanCanada I should note (for the benefit of others reading the comments) that I was working on my 2012 Jeep Patriot and everything you did applied to it as well. I am pretty sure it's common knowledge that the Patriot and the Compass are effectively identical for mechanical purposes, but I'll say it anyway!
Best video on the topic thank you
Glad it was helpful! Thanks for watching and for your comment.
thank you for the video, i am more confident in replacing mine now. :)
Glad I could help
Great video, hope your show more of these,videos like this can help people learn to work on their vehicle.👍
That's the plan! Thanks for watching.
Yeah I'm doing this right now and I can't get the dang alternator out of the tiny space
I'm doing mine right now and it's such a pain!
I hope you are back to driving it now.
@@CasselmanCanada yeah! I found out that if you Pull the alternator out underneath of the car instead of trying to pull it through the hole on the side it's way easier. Although now my radio is giving me weird troubles ever since I changed it
@@CasselmanCanada yessir, I also ended taking off the ac compressor and that mount on the oil pan. But I got it! She's back on the road, thank you!
I'm stuck trying to get the alternator free. Seems no matter how I rotate it there's just no room to pull it out.
I hope you got that thing out soon after you took a break to post the comment. Sometimes a short break can bring new perspective to a job. I remember that frustrated feeling.
Whats the alternator light look like😂
For a few weeks after the noise started the light was not on and it was still charging. But just the last day before I did the work the light came on. Fortunately it was only a short distance so the battery did not go dead.
Exact same thing happen to my alternator.I herd the OAD wasn't probably grease right from the factory before I install my alternator I will grease it over for longer life span.
I'm not sure where you are going to put the grease. The bearings are not accessible to the end user. It was the one-way clutch that failed first here. Good idea but likely too small and it is also up front where it gets all the snow, rain, dust and mud. And that clutch does not actually have real sealed bearings- just centrifugal weights on pins. Any oil or grease you put on would get flung out onto the pulley and belt and would cause slippage and belt burn. Sorry, don't lube it.
@@CasselmanCanada true as u say,....my mechanics actually weld the clutch so it would not slip nor make noise again, work great and belt work firm doesn't bounce as they say without stock pulley clutch.
Hello, I am currently working on my 2012 Dodge Caliber on the same issue. The car starting making this horrible noise coming from under the hood. I had never heard such a shrieking sound. I began inspecting where the sound was coming from. Let me share with you what I did. I turned the car on. I popped the hood. At first I thought it was coming from the power steering pump. I got an old piece of water hose around 3 ft long. I put one end to my ear the other end area to area inspecting for noise. The noise was not coming from the power steering pump. I moved the hose from pulley to pulley and noticed that the sound was not coming from the inspected pulleys. I got under my car and pointed the hose end to the crank case oil pan to see if maybe the sound was coming from a rod. No sound from the crack case oil pan area. The tranny was not making any noise at all so I didn't pursue that trek. I got back up from under the car and directed the the hose end to the alternator. There it was. The noise was coming from the alternator. I shut the car off.
I next did some research on the internet as to why the alternator would be making such a shrieking noise. I found that the alternator has a decoupler pulley. This pulley engages with demand. And disengages with let off. Today I have been to two auto zones and one Mom & Pop local auto parts store doing some questioning as to which avenue I should take. Should I replace the entire alternator? I will add that the alternator is working. Not a single instrument panel light has come on even those the shrieking noise is coming from the alternator. Or should I just replace the decouple pulley?
Yesterday, Tuesday Sept 14th 2021 I began working on the car. I lifted the car, secured the car and removed the passenger wheel. I then removed a dust, debris moisture cover which had four expanding bolts. When you remove this cover you have access to the belt tensioner pulley. I removed the serpentine belt by using an eye-wrench. I don't remember what size wrench. But it was around 5/8 in or in that area. Anyway, I removed the serpentine belt. I turned on the car. The motor purred like a kitten. No more shrieking noise. I shut the car off and called it a night.
My next step was to venture on to UA-cam and see how to remove the alternator. Thanks to your video I will follow your steps on how to proceed in removing the alternator and fixing the car. When I eventually remove the alternator I will see if AutoZone or any other Auto Parts can check my alternator to see if it is the alternator making the noise or the decoupler pulley. From there I will do as needed. The Mom & Pop store quoted me $210 for a rebuilt Alternator which comes with the pulley installed.
By the way, which Alternator did you opt for? A new one. A rebuilt one? Please respond. Have a great day.
Thank you.
Once you get the alternator off, you will quickly see why it was so noisy. The decoupler should rotate only in one direction. Also at that time you can test the alternator bearings by spinning the alternator. It should rotate smoothly. To install a new pully you likely need to disassemble the alternator and use a special puller and a press to remove and install the new decoupler. And after that many miles the alternator brushes will be nearly worn out. My opinion was to just replace it with a rebuilt alternator. Get it done and forget it for many years to come. By the way after all that expense I did not bother with a new belt. It is still running.
@@CasselmanCanada I got my alternator repaired at a local shop. Had a new decoupler pulley and two bushings replaced. I installed the alternator, followed by the AC compressor and then the serpentine belt. I turned the car on while keeping an eye on the serpentine belt making sure it stayed on track when the car is turned on after a removal and installment -- it did. I left the car running a few minutes to see if any lights turn on in the instrument panel -- no lights -- good news. At this same time I did see that the ac was in proper working order. There was no more noise coming from the decoupler pulley. Including, I was quite impressed with the beautiful sound the engine was making. I shut the car off after a few minutes.
I put the tire well cover back in place by snapping the two expansion plugs. I then set the tire and gave them five tire nuts a good leaning. I put all the tools, jacks, wood support blocks away. I turned the car on and went for a spin. I am here to say that the job has been completed and is to my satisfaction. Thank you for the video. Enjoy your Autumn.
I got the same Nosie and problem
@@ThatOneArchie they could weld the pulley so it work as a solid pulley. If u experience the wear again.