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2020 Aviator Transmission Hesitation and Rough Shifts

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Dan C. · rep 0 · May 22, 8:16 AM · 1 replies · solved · Question

Vehicle: 2020 Lincoln Aviator Reserve

Hey everyone,

I've got a 2020 Lincoln Aviator Reserve with about 45,000 miles on it, and I've started noticing some really strange behavior from the 10-speed automatic transmission. It's mostly noticeable at lower speeds, especially when accelerating from a stop or during light acceleration around 20-40 mph.

The car often hesitates before engaging a gear, almost like it's searching, and then sometimes shifts quite roughly, with a noticeable jolt. It's not consistent, but it's happening frequently enough now to be a real concern. It feels like the transmission is confused.

Has anyone else experienced anything similar with their Aviator? I'm wondering if it's a known issue or if there's a common fix. Should I be worried about a major transmission problem, or could it be something simpler like a software update? Any advice would be greatly appreciated before I take it to the dealer.

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 8:16 AM

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ClearTheCode admin answer:

It sounds like you're experiencing some common symptoms of a transmission issue in your 2020 Lincoln Aviator. The 10-speed automatic transmission, while generally robust, can sometimes exhibit these behaviors. Here's a breakdown of potential causes and steps:

  1. Software Calibration: Often, rough shifting or hesitation can be resolved with a transmission control module (TCM) software update. Manufacturers frequently release updates to refine shift logic and improve overall performance. This is usually the first thing a dealership will check.
  2. Transmission Fluid Level and Quality: An incorrect fluid level (either too low or overfilled) or degraded transmission fluid can lead to shifting problems. While your vehicle has a 'sealed for life' transmission, fluid can still degrade over time or leak. A professional can check the fluid condition and level.
  3. Valve Body or Solenoid Issues: The valve body directs hydraulic pressure to engage gears, and solenoids control the fluid flow. If a solenoid is sticking or the valve body has internal issues, it can cause erratic shifting. This is a more involved repair.
  4. Internal Mechanical Wear: Less common at 45,000 miles but possible, internal components like clutch packs or bands could be showing premature wear. This would typically be accompanied by more severe symptoms or slipping.

When to See a Shop:

  • Immediately: If you notice any warning lights (e.g., 'Service Engine Soon' or a transmission-specific warning), hear grinding noises, or experience complete loss of a gear or drive.
  • Soon: Given the consistent hesitation and rough shifts, it's advisable to schedule an appointment with a Lincoln dealership or a reputable transmission specialist. They have the diagnostic tools to read specific transmission codes (e.g., P07xx series codes related to transmission range sensor, shift solenoid performance, or pressure control) and perform necessary software updates or deeper diagnostics.

Diagnostics: While a general OBD-II scanner might not show specific transmission codes for 'rough shifting' unless a component has failed, a professional scan tool can access the TCM and provide more detailed information, including pending codes or specific data stream values that indicate an issue.

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