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Discussion Starter · #1 · (Edited)
Hey everyone! I'm new here and purchased a used 2010 Jeep Patriot back in January of this year. I believe it had about 98k miles when I bought it. It's at 104k now. Anyways, this thing was running beautifully up until a couple weeks ago when it started to make a weird knocking/ticking sound. It's doesn't consistently tick, just kind of comes and goes. I took it to a mechanic and they said it's definitely the CVT going bad. It's weird to me considering it drives smooth and doesn't seem to have any trouble shifting gears. What are your thoughts? Anyone ever experienced this noise before?

Here is a link to the video because I'm not able to upload it to this website for some reason
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Welcome to the forum. Sorry you're having this issue. Normally, when the CVT starts having issues it'll make a loud whining noise when you're driving. I've never heard of one making a noise like yours when it's in park. I'd suggest taking it to a different shop for diagnoses. However, the fluid and BOTH filters in the CVT need to be changed AT LEAST every 50-60k miles, the manual is VERY misleading in regards to this. And also, the spark plugs need to be changed every 30k.

Are there any dash lights on? Are there any codes present? Most auto part stores will scan codes for free.
 

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Discussion Starter · #3 ·
Welcome to the forum. Sorry you're having this issue. Normally, when the CVT starts having issues it'll make a loud whining noise when you're driving. I've never heard of one making a noise like yours when it's in park. I'd suggest taking it to a different shop for diagnoses. However, the fluid and BOTH filters in the CVT need to be changed AT LEAST ever 50-60k miles, the manual is VERY misleading in regards to this. And also, the spark plugs need to be changed every 30k.

Are there any dash lights on? Are there any codes present? Most auto part stores will scan codes for free.
Thanks for the reply! I guess the lack of whine is a good sign. I took a look at the spark plugs with a buddy and they definitely haven't been changed recently because they are clapped out. I highly doubt the fluid or the filters have been changed in the CVT either. There aren't any dash lights on, which I found odd. I haven't checked for any codes since there were no lights.
 

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Hi Dhurl welcome to the forum.

If it's something mechaical like a bad bearing (it does happen) then there may not be any lights or codes, however you can take a mechanics stethoscope (or a stick of wood if you don't have a stethoscope) and probe around on the transmission case to see if the sound is louder. You may have to take the plastic shield off the bottom to get better access.
 

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Discussion Starter · #5 ·
Hi Dhurl welcome to the forum.

If it's something mechaical like a bad bearing (it does happen) then there may not be any lights or codes, however you can take a mechanics stethoscope (or a stick of wood if you don't have a stethoscope) and probe around on the transmission case to see if the sound is louder. You may have to take the plastic shield off the bottom to get better access.
How would it work if I used a stick of wood? Just touch along the transmission case and see if I feel more vibrations?
 

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The knocking noise comes frome a bad valve in the Valvebody! Whining noise you get when the Cooler Return Filter ist clogged.
How to inspect the Valvebody look here:
It's not the Dead for your CVT, most time the problem is fixed by an Transmission Flush and News Filters. (both)
 
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