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Rough Shifting and Hesitation in my 2018 Pacifica Touring L

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Sarah K. · rep 0 · May 22, 5:50 AM · 1 replies · solved · Question

Vehicle: 2018 Chrysler Pacifica Touring L

Hey everyone,

I've been experiencing some really frustrating transmission issues with my 2018 Chrysler Pacifica Touring L lately. It's got the 3.6L V6 engine. The main problem is rough shifting, especially when going from a stop or at lower speeds. Sometimes it feels like it hesitates before engaging a gear, and other times it shifts with a noticeable jolt.

It's not constant, but it's happening more frequently now. I'm worried it might be a serious problem. Has anyone else with a 2018 Pacifica or similar model experienced anything like this? What was the cause, and what did you do to fix it? Any advice would be greatly appreciated before I take it to the dealer.

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 5:50 AM

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ClearTheCode admin answer:

It sounds like you're dealing with classic symptoms of a transmission issue in your 2018 Chrysler Pacifica. Rough shifting, hesitation, and jolting can point to several potential problems within the drivetrain system. This is a concern that should be addressed promptly.

Here are some common causes and steps to consider:

  1. Check for Diagnostic Trouble Codes (DTCs): The first step is always to scan your vehicle for any stored OBD-II codes. Even if the check engine light isn't on, a pending or historical code related to the transmission control module (TCM) might be present. Common codes for transmission issues include P0700 (Transmission Control System Malfunction) or specific codes like P0731-P0736 (Incorrect Gear Ratio for various gears) or P0750-P0770 (Shift Solenoid Malfunction).
  2. Transmission Fluid Level and Condition: Low or degraded transmission fluid can cause shifting problems. Check your transmission fluid level according to your owner's manual (often requires the engine to be at operating temperature and running, or in some cases, cold). Note the fluid's color and smell; dark, burnt-smelling fluid indicates a problem.
  3. Transmission Control Module (TCM) Software: Sometimes, rough shifting can be resolved with a software update for the TCM. Manufacturers periodically release updates to improve shifting logic and performance.
  4. Faulty Solenoids or Valve Body: The transmission's valve body contains solenoids that control fluid flow to engage gears. If these solenoids become faulty or the valve body itself has issues, it can lead to erratic shifting.
  5. Internal Transmission Wear: In more severe cases, the problem could stem from internal wear or damage to clutches, bands, or other components within the transmission.

When to see a shop:

YouGiven the symptoms you've described, it's highly recommended to have your Pacifica inspected by a qualified mechanic or a Chrysler dealership as soon as possible. Continuing to drive with significant transmission issues can lead to further, more expensive damage. A professional can accurately diagnose the root cause using specialized diagnostic tools and determine if it's a simple fluid issue, a software glitch, or a more complex mechanical problem requiring repair or replacement.

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