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2019 Durango Citadel 8-Speed Transmission Shifting Rough - Any ideas?

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Mike T. · rep 0 · May 25, 4:15 AM · 1 replies · solved · Question

Vehicle: 2019 Dodge Durango Citadel

Hello fellow Dodge owners,

I'm experiencing some concerning transmission behavior in my 2019 Dodge Durango Citadel, equipped with the 8-speed automatic. Over the past few weeks, I've noticed it shifts quite roughly, especially from 1st to 2nd and sometimes 2nd to 3rd. It feels like a jolt or a hard engagement.

Occasionally, there's also a noticeable delay when shifting into drive or reverse from park. It's not constant, but it's happening frequently enough to worry me. I bought it used a year ago, and it has about 65,000 miles on it now.

Has anyone else with a similar Durango or 8-speed transmission experienced this? What could be causing it, and what should I check first?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 4:15 AM

0

ClearTheCode admin answer:

Rough shifting and delayed engagement in the 8-speed ZF-sourced automatic transmission, common in your 2019 Dodge Durango, can be caused by several factors. Here’s a breakdown of potential issues and steps to take:

  1. Check Transmission Fluid: Although many modern transmissions are considered 'sealed for life,' fluid can still degrade or become low. Low or dirty transmission fluid is a primary cause of shifting problems. While there's no traditional dipstick, a qualified technician can check the fluid level and condition via a fill plug.
  2. Software Updates: Transmission control modules (TCMs) often have software updates available from the dealership that address shifting anomalies. These updates can recalibrate shift points and improve overall performance. This is a common fix for many complaints.
  3. Adaptive Learning: The transmission's adaptive learning process can sometimes get 'confused' by driving styles or minor issues. A 'quick learn' procedure or resetting the adaptive values can sometimes resolve rough shifting.
  4. Valve Body Issues: The valve body is responsible for directing transmission fluid to control clutches and bands. Internal wear or solenoids within the valve body can cause erratic shifting. This is a more involved repair.
  5. Mechanical Wear: Less commonly at 65,000 miles but still possible, internal components like clutches or bands could be showing wear.

Diagnostics: While these issues might not always trigger a Check Engine Light, a transmission-specific diagnostic scan tool can often pull codes related to transmission performance (e.g., P07xx series codes like P0731 for incorrect gear ratio, P0729 for 6th gear ratio error, or P0700 for a general transmission control system malfunction).

When to see a shop:

  • If the problem is persistent, worsening, or if you notice any warning lights (like the Check Engine Light or a transmission warning light).
  • If you suspect low or dirty fluid, as checking and changing transmission fluid requires specialized tools and knowledge for these sealed units.
  • To inquire about and perform any available software updates for the TCM.
  • A professional transmission shop or Dodge dealership will have the necessary diagnostic equipment to accurately pinpoint the cause and recommend the appropriate repair.
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