The largest online repair guide library for every car

About us
Contact support
FAQ
Sign up
Sign in

2018 Continental Transmission Jerking - Rough Shifts 1st to 2nd

0

Mike T. · rep 0 · May 25, 4:27 AM · 1 replies · solved · Question

Vehicle: 2018 Lincoln Continental Black Label 3.0L

Hello everyone,

I've got a 2018 Lincoln Continental Black Label with the 3.0L engine, and I've noticed a concerning issue with the transmission lately. It's been shifting very harshly, especially from 1st to 2nd gear. It feels like a significant jerk or clunk, and it's not smooth at all. This happens both when the engine is cold and after it's warmed up.

There's no check engine light on, which makes it harder to diagnose. I'm worried this could be a sign of a major transmission problem. Has anyone else experienced rough shifts like this with their Continental, and what did it turn out to be?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 4:27 AM

0

ClearTheCode admin answer:

Harsh or jerky shifts, particularly between specific gears, are definitely a cause for concern and can indicate several potential issues within the transmission system. Even without a check engine light, there could be pending codes or underlying mechanical problems.

  1. Potential Causes for Rough Shifting:

    • Low or Contaminated Transmission Fluid: Incorrect fluid levels or old, dirty fluid can severely impact shifting performance.
    • Faulty Transmission Solenoids: These electronic components control the flow of transmission fluid to engage different gears. A failing solenoid can cause delayed or harsh shifts.
    • Valve Body Issues: The valve body is the 'brain' of the automatic transmission, directing fluid pressure. Wear or blockages in the valve body can lead to erratic shifting.
    • Transmission Control Module (TCM) Problems: The TCM manages the transmission's operations. A software glitch or hardware failure in the TCM can cause shifting anomalies.
    • Internal Transmission Wear: Worn clutch packs, bands, or gears can also contribute to rough shifts, though this is often accompanied by other symptoms like slipping or noise.

  2. Initial Steps & Observations:

    • Check Fluid Level & Condition: If you're comfortable, check your transmission fluid level according to your owner's manual (some transmissions are sealed and require special tools). Note the fluid's color and smell; burnt smell or dark color indicates potential issues.
    • Note Specifics: Pay attention to when the harsh shifts occur (cold/hot, specific gears, under load). This information is valuable for a technician.

  3. When to See a Shop:

    • Immediate Action: Given that transmission issues can escalate quickly and lead to very expensive repairs, it's highly recommended to have your Continental inspected by a qualified transmission specialist or Lincoln dealership as soon as possible.
    • Professional Diagnosis: A professional will use a specialized scan tool to check for any stored or pending transmission-specific diagnostic trouble codes (DTCs), even if the check engine light isn't on. They can also perform:
      • A thorough transmission fluid inspection and potentially a flush/filter change.
      • Pressure tests to check for internal leaks.
      • Electrical tests on solenoids and the TCM.
      • A road test with diagnostic equipment to monitor real-time transmission performance.

Addressing rough shifting early can often prevent more severe and costly transmission failures.

Menu

Help & account