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2012 Patriot CVT started slipping

9.6K views 9 replies 8 participants last post by  Sandstone  
#1 ·
Dear all

The CVT on our 2012 Patriot has started slipping, we are now at 132k miles and have had the CVT services (oil and filter change) 12k ago.

I know this seems to be a common issue, any tips on how to get this fixed in the cheapest way possible?

Many thanks!
cirpower
 
#2 ·
Are you getting any codes or cel?

If you're not getting error codes, and you haven't changed the spark plugs in 30 miles you might want to get a new set in; bad plugs can make it seem like the trans is slipping.

OTOH, if you're getting trans codes, you may want to consider taking it to a reputable shop with experience in diagnosing/repairing this type of CVT.

If you need a reference ATSG might be able to help:
 
#3 ·
Thanks Sandstone, we are not getting any codes or cel. Spark plugs were in fact just changed recently and it really clearly feels like the transmission is slipping, the car just revs up high without moving forward.
 
#5 ·
Did any of you with cvt trans problems change the round soup can looking filter on the side of cvt transmission ? It may be plugged up dirty and slowing the flow of cvt trans fluid. Just a thought.....
 
#7 ·
I changed everything else listed in the forums over the past two years trying to resolve this too common problem on my 2010 Patriot. I finally decided the soup can might be clogged somehow and changed it as the absolute last ditch effort to get some use out of what has been our around town car since driving it more than 30 minutes it would go into limp mode. First test drive was over 1.5 hours with zero problems. I am slowly taking it on longer trips and beginning to finally trust it a little more. I believe since so few people ever change the small filter in the soup can, it gets so dirty that the can itself gets clogged. I finally came to this conclusion after adding a finned cooler to the system. When it still overheated, I grabbed the cooler lines trying to see if any were hot or cold. To my surprise, both were ice cold which led me to believe the oil was not getting past the soup can to get to the radiator or my new auxiliary cooler. I can't believe anyone has figured this out before now. Hopefully this is a permanent fix as mine now has the pan with drain plug and an auxiliary cooler. Adding that cooler adds one extra quart of fluid which should help also. I hope this info helps a lot of you guys struggling with this issue. This has been one of my biggest challenges, and I have been working on my own stuff for more than 35 years.
 
#6 ·
The transmission cooler bypass valve on mine was malfunctioning, causing the trans to overheat but it never slipped. But the first thing that I would do if my trans started slipping would be a trans drain & fill and replace both filters. I think it ended up costing me about $40 the last time I did it.