P2015 on 2007-2012 Dodge Caliber 2.4L: Intake Runner Causes and Fixes

What's Unique About the 2007-2012 Dodge Caliber

The 2.4L "World Engine" used in the Dodge Caliber and its platform-mates (Jeep Compass/Patriot, Dodge Avenger/Journey, Chrysler 200/Sebring) is notorious for this specific failure. Unlike many vehicles where P2015 could be an electrical sensor issue, on this platform, it almost always points to a mechanical failure inside the plastic intake manifold itself. The internal plastic flaps and, more specifically, the plastic bushings and linkage that move them, become brittle from constant heat cycles, get clogged with carbon and oil deposits from the PCV system, and ultimately break or stick. The sensor is usually working correctly; it is accurately reporting the mechanical failure of the flaps not moving as commanded.

Symptoms You May Notice

• Check Engine Light is on
• Reduced engine power and sluggish acceleration, especially at low RPMs
• Poor fuel economy
• Rough or unstable idle
• Engine may sound 'choppy' or different than usual
• Hesitation during acceleration

Most Likely Causes

1. Failed Intake Manifold Assembly 🔴 High Probability → Shop Engine Intake Manifold The 2.4L World Engine's plastic intake manifold has internal flaps and linkage that are known to become brittle, bind with carbon, and break over time due to engine heat cycles. The bushings for the runner flap shaft are a common wear point, leading to excess play or seizure.
   How to confirm: The most definitive test is to remove the intake manifold runner control actuator from the side of the manifold (typically held by three 8mm or 10mm bolts). Manually try to move the plastic linkage arm on the manifold. It should move smoothly through its range of motion with light spring tension. If it is stiff, gritty, stuck, or excessively loose, the manifold has failed internally. A video from Rust Belt Auto on a Jeep Patriot shows this exact diagnostic step.
   Typical fix: Replace the entire intake manifold assembly. This is the most common and reliable long-term repair as it addresses the root mechanical problem.
   Est. part cost: $120-$480
2. Failed Intake Manifold Runner Control (IMRC) Actuator 🟡 Medium Probability → Shop Engine Intake Manifold The actuator motor can fail electrically or mechanically. However, it's often replaced unnecessarily when the true fault is a seized manifold, which can overwork and burn out the motor.
   How to confirm: After removing the actuator, test the manifold linkage as described above. If the linkage moves freely with light spring tension, the actuator itself is the likely point of failure. You can also test for power, ground, and signal at the actuator's electrical connector with a multimeter.
   Typical fix: Replace the IMRC actuator motor. This part is mounted to the side of the intake manifold. This should only be done after confirming the manifold linkage is not seized.
   Est. part cost: $80-$150

Rare But Worth Checking

• Wiring Harness or Connector Issue: A damaged wire or corroded connector for the IMRC actuator can cause a loss of signal, triggering the P2015 code. This should be checked, especially if the manifold and actuator appear to be in good working order. Look for chafing or damage where the harness routes near the engine.

Diagnosis Steps

1. Confirm the P2015 code is present using an OBD-II scanner. Note any other codes like P2004 or P2017.
2. Visually inspect the wiring harness and connector going to the intake manifold runner control actuator for any signs of damage, corrosion, or loose connections.
3. Remove the IMRC actuator from the side of the intake manifold. It is typically held by three bolts with 8mm or 10mm heads.
4. CRITICAL STEP: With the actuator removed, attempt to manually move the plastic linkage on the manifold itself. It should move smoothly with some spring tension and return to its original position.
5. If the linkage is stuck, stiff, gritty, or has excessive play, the intake manifold assembly has failed and must be replaced.
6. If the linkage moves freely, the IMRC actuator is the most likely culprit. It should be replaced.
7. After replacing the necessary parts (manifold or actuator), clear the trouble codes with the scanner and perform a test drive, including varied RPMs, to ensure the fix was successful.

Parts You'll Likely Need

• Intake Manifold Assembly (OEM #4884495AK) — This is the most common failure point for code P2015 on this engine, as the internal plastic flaps and linkage break or seize. The OEM Mopar part often includes the actuator, MAP sensor, and gaskets.
  Trusted brands: Mopar, Dorman (615-282 is listed for the Patriot, check application), SKP, APDTY
  OEM price range: $460-$500
  Aftermarket price range: $120-$250
• Intake Manifold Runner Control Actuator (OEM #4884549AD) — This motor can fail, but it should only be replaced after confirming the manifold's internal linkage moves freely. It is often replaced in error.
  Trusted brands: Mopar, Dorman (911-902)
  OEM price range: $120-$160
  Aftermarket price range: $80-$120
• Intake Manifold Gasket Set (OEM #MS96840) — This gasket should always be replaced when the intake manifold is removed to ensure there are no vacuum leaks. Many aftermarket manifolds come with new gaskets.
  Trusted brands: Fel-Pro, Victor Reinz, Mahle
  OEM price range: $15-$25
  Aftermarket price range: $8-$15

Related Codes That Often Appear With This One

• P2004 — This code means 'Intake Manifold Runner Control Stuck Open'. It is extremely common to see with P2015 because the underlying mechanical issue—stuck flaps—can cause the system to be seized in the open position.
• P2006 — This code means 'Intake Manifold Runner Control Stuck Closed'. It can appear with P2015 if the flaps are seized in the closed position.
• P2017 — This code for 'Intake Manifold Runner Position Sensor/Switch Circuit High' points to an electrical fault in the sensor circuit, which is part of the same system. It often appears alongside P2004 and P2015 when the actuator or wiring is compromised.

Platform-Specific Known Issues

• The 2.4L World Engine platform is widely documented across Dodge, Jeep, and Chrysler models to have a high failure rate for the plastic intake manifold's runner control system.
• A user on a Jeep forum noted that engineers made this 'plastic crap' that is notorious for cracking or getting gunked up with oil, causing the runners to stick.

Mechanic-Grade Diagnostic Values

• IMRC Position Sensor Live Data Voltage (Scan Tool) — expected: Should sweep smoothly from a low voltage (approx. 0.5V - 1.7V) at idle to a high voltage (approx. 3.8V - 4.5V) when the engine is revved past 3,000 RPM.. Failure: A voltage reading that is stuck, erratic, or does not change when engine RPM changes.
• IMRC Actuator Connector - 5V Reference — expected: 5.0 volts on the Yellow/Pink wire with key on, engine off.. Failure: Significantly lower or no voltage, indicating a PCM or wiring issue.
• IMRC Actuator Connector - Sensor Ground — expected: Less than 50 mV on the Dark Blue/Dark Green wire.. Failure: Higher voltage indicates a bad ground connection.
• IMRC Actuator Connector - Signal Wire Bias Voltage — expected: Approximately 5.0 volts on the Yellow/Dark Blue wire with the actuator connector unplugged and key on.. Failure: No voltage may indicate an open in the signal wire or a PCM issue. This is a bias voltage from the PCM to check circuit integrity.
• IMRC Actuator Motor Resistance — expected: Approximately 12.0-12.8 Ohms. Some generic sources suggest a wider range of 20-50 Ohms.. Failure: A reading of 'OL' (Over Limit) indicates an open circuit, while a reading near zero indicates a short circuit.

Scan Tool Commands That Help

• Professional Scan Tool (e.g., WiTech): Actuator Test / Bidirectional Control — To command the IMRC actuator open and closed while observing live data or listening for mechanical operation. This helps determine if the actuator motor is responding to PCM commands, isolating the issue to the actuator, wiring, or a mechanical jam in the manifold.

Wiring & Ground Locations

• IMRC Actuator Connector Pinout — On the IMRC actuator motor, located on the driver's side of the plastic intake manifold.. Knowing the pinout is critical for electrical testing. The pins are typically: Pin 1 (Black/White): Motor Ground, Pin 2 (Brown/Violet): Motor Power, Pin 3 (Yellow/Pink): 5V Reference, Pin 4 (Dark Blue/Dark Green): Sensor Ground, Pin 5 (Yellow/Dark Blue): Signal.
• G104 — A body ground point, likely in the engine bay near the driver's side.. A diagnostic video for a similar code (P2010) on a Caliber identified a bad G104 ground as the cause of the fault. The IMRC actuator motor receives its ground from this point, and high resistance here can prevent the motor from operating correctly.

OEM Part Supersession History

• 4884495AH, 4884495AI, 4884495AJ → 4884495AK — Revisions by the manufacturer to address the common failure of the internal runner flaps and linkage.
  Heads up: While older versions will physically fit, the latest revision (4884495AK) is recommended as it may contain durability improvements. Aftermarket parts from brands like Dorman and SKP are also widely available.

Diagnostic Flowchart

Other Known Issues on This Vehicle

Issues unrelated to this code that are worth knowing about as an owner of this generation:

• Front & Rear Subframe/Crossmember Corrosion 🔴 High — Very common, especially in salt-belt regions. Can occur under 100,000 miles. The rust can be severe enough to cause structural failure. (Ref: Chrysler issued an extended warranty (X69) for 10 years for this issue on some model years, but many owners report issues outside the warranty period.)
• CVT Transmission Failure 🔴 High — Common complaint. Symptoms include whining noises, overheating (transmission temperature light), slipping, and sudden loss of power or limp mode.
• Electronic Throttle Body Failure 🟠 Medium — Fairly common. Leads to a flashing 'red lightning bolt' on the dash, sudden loss of acceleration (limp mode), and rough running. Often caused by worn plastic gears inside the throttle body.
• Water Leaks into Cabin 🟡 Low — Often reported, typically from clogged sunroof drain tubes or poor seals around the doors or firewall, which can lead to wet carpets and potential electrical issues.

Used vs. New Parts: Buying Guide for This Vehicle

When a used part is the smart pick: For this specific repair, purchasing a used intake manifold from a junkyard is strongly discouraged. The failure is caused by the aging and embrittlement of internal plastic components due to heat and time. A used part, even from a lower-mileage vehicle, is likely to have the same underlying wear and will probably fail in a short amount of time.

What to inspect on the donor part:

• Not applicable, as a used manifold is not a recommended repair path for this P2015 code.

OEM-only on this vehicle (don't cheap out):

• While not strictly 'OEM-only', the complete intake manifold assembly is the required part. Simply replacing the external actuator or sensor is a common misdiagnosis that will not fix the internal mechanical failure.

Aftermarket brands forum-validated for this vehicle:

• Dorman (Part numbers like 615-282, 911-902 for the actuator)
• SKP
• APDTY (Autoparts Direct to You)
• MaXpeedingRods

Brands owners have reported issues with on this vehicle:

• No specific brands are consistently reported as problematic, but given the low cost of aftermarket manifolds ($120-$250), opting for a new aftermarket assembly is a much safer and more durable repair than a used OEM part.

Real Owner Stories

Aggregated from forums and TSBs cited above. Mileages and costs reflect what owners reported in those sources.

Related OBD-II Codes

• P2004 — Often appears alongside P2015 when the intake manifold runner control is stuck in the open position.
• P2017 — A companion code indicating the Intake Manifold Runner Position Circuit is High, frequently triggered by the same mechanical failure of the manifold flaps.
• P2008 — Related to the Intake Manifold Runner Control circuit/open bank 1, often seen during the same diagnostic process for runner failures.

Frequently Asked Questions