FAULTBASE
Error CodesASKCars
© 2026 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
why does my Ram 1500 DT (2019-Present) check engine light keep coming on - Ram 1500
Home/Cars/Ram/1500/DT (2019-Present)/why does my Ram 1500 DT (2019-Present) check engine light keep coming on

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

Ram 1500 DT (2019-Present)

Error Codes
1-3 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
1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

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

Symptoms

  • •Check engine light illuminated
  • •Engine running rough or misfiring
  • •Decreased fuel efficiency
  • •Unusual exhaust odors or increased emissions
  • •Engine stalling during operation
  • •Poor acceleration or loss of power

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7

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
  • •Torque wrench
  • •Screwdriver set
  • •Spark plug socket

Parts Required

  • •Spark plugs (if needed)
  • •Ignition coils (if needed)
  • •Air filter (if needed)
  • •Gas cap (if needed)

Additional Information

Affected Component
Engine
Estimated Time
1-3 hours
Difficulty
medium
Severity
medium
Tools Required
5 items
Parts Required
4 items

Related Faults

Loading...

Share this solution

Comments

Sign in to share your thoughts

Sign In

No comments yet

Be the first to share your thoughts

Back to Generation
Solution
1. Preparation
  • Gather tools and parts.
  • Disconnect the battery to prevent electrical shorts.
  • Ensure the vehicle is parked on a flat surface and the engine is cool.
2. Replace Faulty Components

If DTCs indicate specific parts:

  • Ignition Coils/Spark Plugs:

    1. Remove engine cover if applicable.
    2. Disconnect electrical connectors from the ignition coils.
    3. Unbolt ignition coils and remove them from the spark plugs.
    4. Remove spark plugs using a spark plug socket.
    5. Install new spark plugs, torquing to manufacturer's specifications (typically 13-15 ft-lbs).
    6. Reinstall ignition coils and reconnect electrical connectors.
  • Gas Cap:

    1. Remove the old gas cap.
    2. Install a new gas cap, ensuring it clicks securely.
  • Air Filter:

    1. Release clips or screws securing the air filter housing.
    2. Remove the old air filter.
    3. Install the new air filter, ensuring it fits snugly.
3. Reset the Check Engine Light
  1. Reconnect the battery.
  2. Use the OBD-II scanner to clear any stored trouble codes.
  3. Start the engine and let it idle for a few minutes.