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why does my Ram 1500 DT (2019-Present) engine light keep coming on - Ram 1500
Home/Cars/Ram/1500/DT (2019-Present)/why does my Ram 1500 DT (2019-Present) engine light keep coming on

why does my Ram 1500 DT (2019-Present) engine light keep coming on

Ram 1500 DT (2019-Present)

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
494 words

Problem Statement

Learn how to diagnose and fix the check engine light issue in Ram 1500 DT (2019-Present). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component
Engine
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect battery before working on electrical systems.
  • •Allow engine to cool before opening any components.

Symptoms

  • •Check engine light illuminated
  • •Rough idle or engine misfire
  • •Decreased fuel efficiency
  • •Unusual exhaust smoke or odor
  • •Engine stalling or hesitation during acceleration
  • •Increased emissions

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

  • ✓Test the affected component to ensure it functions correctly
  • ✓Check for any error codes or warning lights
  • ✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • •OBD-II scanner
  • •Socket set
  • •Multimeter
  • •Torque wrench
  • •Safety glasses

Parts Required

  • •Spark plugs
  • •Ignition coils (if faulty)
  • •Oxygen sensors (if indicated by error codes)

Additional Information

Affected Component
Engine
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
5 items
Parts Required
3 items

Related Faults

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Solution
1. Preparation
  • Tools Required: OBD-II scanner, socket set, multimeter, torque wrench, safety glasses.
  • Sub-steps:
    • Disconnect the battery to ensure safety while working on electrical components.
    • Gather all necessary tools and parts for the repair.
2. Address Fault Codes
  • Hook up the OBD-II scanner to retrieve error codes.
  • Analyze the codes to determine the specific faults. Common codes may relate to oxygen sensors, catalytic converter efficiency, or misfires.
3. Replace Faulty Components
  • If codes indicate faulty spark plugs:
    • Remove the ignition coil using a socket set.
    • Remove and replace the spark plugs, ensuring proper torque (typically 15-20 lb-ft).
  • If codes indicate oxygen sensor issues:
    • Locate the oxygen sensor (pre-catalytic converter or post-catalytic converter).
    • Disconnect the wiring harness and unscrew the sensor using an oxygen sensor socket.
    • Install the new oxygen sensor and reconnect the wiring harness.
4. Clear Codes and Test
  • Use the OBD-II scanner to clear the fault codes from the engine control unit (ECU).
  • Reconnect the battery and start the engine.
  • Monitor the check engine light status for reoccurrence.