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2017 Ford Explorer XLT - Harsh Shifting from 1st to 2nd Gear

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Mike T. · rep 0 · May 25, 1:31 AM · 1 replies · solved · Question

Vehicle: 2017 Ford Explorer XLT

I'm experiencing some really rough shifting in my 2017 Ford Explorer XLT, 3.5L V6, especially noticeable when going from 1st to 2nd gear. It feels like a hard jolt or a 'clunk' sometimes, and it's starting to get worse. It's most prominent when the engine is cold, but it still happens when warmed up, just less aggressively.

I haven't seen any check engine lights come on yet, and there are no codes when I run my basic OBD-II scanner. The car has about 70,000 miles on it. I'm worried this might be a transmission issue. Has anyone else with a similar Explorer experienced this? What could be causing this harsh shift?

Is there anything I can check myself before taking it to a transmission shop? I've heard about transmission fluid levels, but I'm not sure if that's something I can easily check on this model.

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 1:31 AM

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ClearTheCode admin answer:

Harsh shifting, particularly from 1st to 2nd gear, on your 2017 Ford Explorer XLT can be a concerning issue. While no check engine light or codes are present yet, this doesn't rule out a developing problem within the transmission.

Here's a breakdown of potential causes and what to check:

  1. Transmission Fluid Level and Condition:

    • Level: Low transmission fluid is a common cause of shifting issues. Many modern Ford transmissions are sealed units without a traditional dipstick, requiring a specific procedure (often involving a lift and temperature monitoring) to check the fluid level accurately. Consult your owner's manual or a service manual.
    • Condition: Even if the level is correct, old, dirty, or burnt transmission fluid can degrade its lubricating properties and lead to harsh shifts. If the fluid looks dark brown/black or smells burnt, it needs attention.

  2. Transmission Software/Adaptive Learning:

    • Modern transmissions use adaptive learning to adjust shift points and pressures based on driving style and wear. Sometimes, these adaptations can become incorrect, leading to poor shifting. A software update or a 'reset' of the adaptive learning values by a Ford dealer can often resolve this.

  3. Transmission Solenoids:

    • Solenoids control the flow of transmission fluid to engage different gears. A failing or sticking shift solenoid can cause erratic or harsh shifts. While these often trigger specific transmission codes (P07xx series), they might not always immediately if the issue is intermittent.

  4. Valve Body Issues:

    • The valve body is the 'brain' of the automatic transmission, directing fluid pressure to the clutches and bands. Wear or blockages within the valve body can lead to shifting problems. This is a more complex internal issue.

  5. Internal Transmission Wear:

    • Clutch packs or bands can wear over time, leading to slipping or harsh engagement. This is typically a more severe and costly repair.

When to See a Shop: Given the complexity of modern transmissions, it's highly recommended to have your Explorer inspected by a Ford dealership or a reputable transmission specialist. They have specialized diagnostic equipment to:

  • Check transmission fluid level and condition accurately.
  • Scan for pending or history codes that your basic scanner might miss.
  • Monitor live transmission data, including solenoid operation and pressure readings.
  • Perform transmission software updates or adaptive learning resets.
  • Conduct road tests and pinpoint the exact cause of the harsh shifting. Addressing this early can prevent more extensive and expensive damage.
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