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2018 Continental 3.0L - Loss of Power and Hesitation

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Mike T. · rep 0 · May 25, 4:28 AM · 1 replies · solved · Question

Vehicle: 2018 Lincoln Continental Reserve 3.0L Twin-Turbo

I own a 2018 Lincoln Continental Reserve with the 3.0L twin-turbo engine. Lately, I've been experiencing a noticeable loss of power, especially when trying to accelerate quickly or merge onto the highway. The car just feels sluggish.

There's also a hesitation or slight stumble when I press the accelerator, almost like it's struggling to get enough fuel or air. I haven't seen a check engine light yet, but the fuel economy seems to have dropped a bit too.

Could this be a fuel system issue, or something else with the turbos? Any ideas what to check first?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 4:28 AM

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ClearTheCode admin answer: Loss of power, hesitation, and reduced fuel economy on your 2018 Lincoln Continental 3.0L twin-turbo engine can stem from several engine and drivetrain components. Even without a check engine light, issues can be present.

Potential Causes:

  1. Fuel Delivery Problems:
    • Clogged Fuel Filter: Restricts fuel flow to the engine.
    • Weak Fuel Pump: Not delivering adequate fuel pressure.
    • Failing Fuel Injectors: Not spraying fuel efficiently or consistently.
  2. Air Intake Issues:
    • Dirty Air Filter: Restricts airflow.
    • Mass Airflow Sensor (MAF) Problems: Incorrectly measures incoming air, leading to improper fuel mixture.
    • Boost Leaks: On a twin-turbo engine, leaks in the intercooler piping or turbocharger system can reduce boost pressure, causing power loss.
  3. Ignition System: Worn spark plugs, even if not causing a full misfire, can lead to less efficient combustion and reduced power.
  4. Catalytic Converter Restriction: A partially clogged catalytic converter can create excessive back pressure, hindering engine performance.

Diagnostics:

  • OBD-II Codes: Even without a light, a pending code (like P0171/P0174 for lean condition or P0420/P0430 for catalytic converter) might be present.
  • Fuel Pressure Test: To check the health of the fuel pump and filter.
  • Boost Leak Test: For twin-turbo engines, this is critical.
  • MAF Sensor Cleaning/Testing: Check sensor readings with a scan tool.

When to See a Shop: Since this involves engine performance and potentially complex systems like the twin-turbos, it's highly recommended to have your Continental inspected by a professional mechanic. They have the specialized tools and diagnostic equipment to accurately pinpoint the cause. Addressing these issues promptly can prevent more serious damage, especially to the turbochargers or catalytic converters, which can be very costly to replace.

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