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2020 Cherokee 2.4L Stalling at Low Speeds - Loss of Power

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Mike T. · rep 0 · May 22, 3:22 AM · 1 replies · solved · Question

Vehicle: 2020 Jeep Cherokee Latitude

Hello, I'm having a really frustrating problem with my 2020 Jeep Cherokee Latitude, equipped with the 2.4L Tigershark engine. Lately, it's been stalling out completely when I'm coming to a stop or driving at very low speeds, like in a parking lot. It just cuts out, and I have to put it in park and restart it.

Sometimes, before it stalls, I notice a significant loss of power and hesitation when I try to accelerate from a stop. There's no consistent check engine light, but it did flicker once or twice. I'm at about 60,000 miles.

Has anyone else experienced this with their 2.4L Cherokee? What could be causing this intermittent stalling and power loss?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 3:22 AM

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ClearTheCode admin answer:

Intermittent stalling and loss of power, especially at low speeds, in your 2020 Jeep Cherokee 2.4L Tigershark engine can be concerning and points to several potential engine management or fuel system issues. Even if the Check Engine Light (CEL) isn't constantly on, there might be pending codes.

Common Causes for Stalling/Loss of Power:

  1. Crankshaft Position Sensor (CKP) or Camshaft Position Sensor (CMP) Failure: A failing CKP or CMP sensor can send incorrect signals to the engine control module (ECM), leading to incorrect ignition timing or fuel delivery, causing stalling or hesitation. These failures are often intermittent before complete failure.
  2. Fuel System Issues:
    • Failing Fuel Pump: A weak fuel pump might not deliver adequate fuel pressure, especially under load or during transitions, leading to stalling.
    • Clogged Fuel Filter: While less common on newer vehicles with 'lifetime' filters, a severely clogged filter can restrict fuel flow.
    • Faulty Fuel Pressure Sensor: An inaccurate reading can cause the ECM to mismanage fuel delivery.
  3. Throttle Body Problems: A dirty or failing electronic throttle body can cause erratic idle, stalling, and poor throttle response. Carbon buildup can restrict airflow at low RPMs.
  4. Vacuum Leaks: Leaks in the intake system can cause the engine to run lean, leading to rough idle and stalling.
  5. EGR Valve Malfunction: A stuck-open EGR valve can cause rough idle and stalling by introducing too much exhaust gas into the intake at inappropriate times.

What to Do:

  1. Scan for Codes: Even if the CEL isn't on, use an OBD-II scanner to check for any pending or stored codes. Codes like P0335 (CKP Sensor Circuit) or P0171 (System Too Lean) could be present.
  2. Inspect Air Intake: Check the air filter and look for any obvious disconnected or cracked vacuum hoses.

When to See a Shop:

  • Promptly: Stalling, especially in traffic, is a safety hazard. It's best to have a qualified mechanic diagnose this issue as soon as possible. They can perform diagnostic tests on the fuel system, sensors, and throttle body to pinpoint the exact cause.
  • If it becomes frequent: Do not delay. Intermittent issues can become constant, and you don't want to be stranded.
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