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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
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
554 words

Problem Statement

Learn how to diagnose and fix the check engine light issue on your 2019 Ram 1500 DT. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component
Engine
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical systems.
  • •Allow the engine to cool before inspecting under the hood.

Symptoms

  • •Check engine light illuminated
  • •Engine running roughly or misfiring
  • •Decreased fuel efficiency
  • •Unusual exhaust emissions (e.g., increased smoke)
  • •Loss of power during acceleration
  • •Engine stalling intermittently

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
  • •Torque wrench
  • •Screwdrivers
  • •Multimeter

Parts Required

  • •Spark plugs
  • •Ignition coils (if necessary)
  • •Air filter
  • •Gas cap (if necessary)
  • •Catalytic converter (if necessary)

Additional Information

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

Related Faults

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Solution
1. Preparation
  • Gather necessary tools and parts.
  • Ensure the vehicle is parked on a level surface and the engine is cool.
  • Disconnect the battery by removing the negative terminal to prevent electrical shock.
2. Scan for Error Codes
  • Use an OBD-II scanner to retrieve diagnostic trouble codes (DTCs).
  • Note the codes for reference and research their meanings.
3. Inspect and Replace Faulty Components

a. Gas Cap Inspection

  • Check the gas cap for cracks or wear.
  • If damaged, replace it with a new gas cap of the same specifications.

b. Ignition System Repair

  • Remove the engine cover (if applicable).
  • Replace faulty spark plugs with new ones, ensuring to torque them to manufacturer specifications (usually around 15 ft-lbs).
  • Inspect and replace ignition coils if they show signs of failure.

c. Air Intake System Check

  • Remove the air intake duct and inspect for leaks or cracks.
  • Clean or replace the air filter as needed.
4. Exhaust System Examination
  • Visually inspect the exhaust system for any holes or signs of rust.
  • If the catalytic converter is damaged, replace it following manufacturer guidelines.
5. Reconnect Battery and Clear Codes
  • Reconnect the battery terminal and ensure it is secure.
  • Use the OBD-II scanner to clear any error codes and reset the check engine light.