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I purchased this 2007 Jeep Commander and shortly after I got it the transmission went into limp mode and stuck in 4th Gear. I get the check engine light and I am showing the following codes: P0882, P0846, P0871, P0988, and P0876. I checked the transmission fluid and the light color of brown tells me it is ready to be changed. The Commander has 188,000 miles on it and has a HEMI and is 2WD. What is the first thing I should check?
 

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Drain and refill fluid atf4. There are 2 filters. Change both. Make sure you install the pan pickup filter (flat) correctly or else fluid will drain back and cause similar issues...
 
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I'd use OEM and not aftermarket filters. Heard horror stories about the AM not working properly
 

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I think most problems stem from wrong filter (4wd or not) and improper installation of the pan filter gasket.

I have wix in mine fwiw....
 
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