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

why does my Ram 1500 DT (2019-Present) engine light come on after starting?

Ram 1500 DT (2019-Present)

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

Problem Statement

Learn how to diagnose and fix the engine light issue on your 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 hot components.

Symptoms

  • •Check engine light illuminated
  • •Rough idle upon engine start
  • •Decreased fuel efficiency
  • •Engine stalling shortly after starting
  • •Unusual engine noises (knocking, pinging)
  • •Increased emissions or failed emissions test

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
  • •Multimeter
  • •Basic hand tools

Parts Required

  • •Spark plugs (if necessary)
  • •Air filter (if necessary)
  • •Ignition coils (if necessary)

Additional Information

Affected Component
Engine
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
5 items
Parts Required
3 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
  • Tools Required: OBD-II scanner, socket set, torque wrench, multimeter, basic hand tools.
  • Safety Warnings: Disconnect the battery before working on electrical systems. Allow the engine to cool before inspecting hot components.
2. Retrieve and Analyze Diagnostic Codes
  • Connect the OBD-II scanner to the vehicle's diagnostic port.
  • Turn the ignition to the "On" position without starting the engine.
  • Read the stored trouble codes and note them for further investigation.
3. Inspect Gas Cap
  • Remove the gas cap and inspect for cracks or damage.
  • Clean the gas cap and the sealing surface on the filler neck.
  • Reinstall the gas cap securely and ensure it clicks into place.
4. Check Engine Oil
  • Remove the dipstick, wipe it clean, and reinsert it.
  • Check the oil level; if low, top off with the manufacturer's recommended oil type.
  • Inspect oil for signs of contamination (milky appearance, metallic particles).
5. Inspect Air Intake System
  • Visually inspect the air filter for dirt and debris; replace if necessary.
  • Check for any loose or damaged hoses in the intake system.
  • Ensure the mass airflow sensor (MAF) is clean and properly connected.
6. Test Ignition Components
  • Remove spark plugs and inspect for wear; replace if worn or fouled.
  • Test ignition coils with a multimeter according to manufacturer specifications.
  • Ensure all connections are secure and free of corrosion.
7. Test Battery and Alternator
  • Use a multimeter to check battery voltage; should be around 12.6 volts.
  • Start the engine and check voltage at the battery; it should be between 13.7-14.7 volts if the alternator is functioning properly.