FAULTBASE
Error CodesASKCars
© 2026 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
my Ram 1500 DT (2019-Present) runs rough after filling up with gas, what’s wrong? - Ram 1500
Home/Cars/Ram/1500/DT (2019-Present)/my Ram 1500 DT (2019-Present) runs rough after filling up with gas, what’s wrong?

my Ram 1500 DT (2019-Present) runs rough after filling up with gas, what’s wrong?

Ram 1500 DT (2019-Present)

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

Problem Statement

Learn how to diagnose and fix fuel system issues in 2019 Ram 1500 DT. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component
Fuel System
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect battery before working on electrical systems.
  • •Allow the engine to cool before performing repairs on fuel components.

Symptoms

  • •Engine misfires or runs unevenly
  • •Check engine light illuminated
  • •Rough idle when stationary
  • •Decreased fuel efficiency
  • •Difficulty starting after refueling
  • •Strong fuel smell around the vehicle

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
  • •Fuel pressure gauge
  • •Socket set
  • •Injector cleaning kit
  • •Smoke machine (optional for EVAP testing)

Parts Required

  • •New fuel cap (if defective)
  • •Fuel injectors (if clogged beyond cleaning)
  • •Fuel pump (if pressure is low)

Additional Information

Affected Component
Fuel System
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
  • Gather necessary tools and parts.
  • Ensure the vehicle is parked on a level surface and the engine is cool.
  • Disconnect the negative battery terminal to prevent electrical shorts.
2. Inspect and Replace Fuel Cap
  • Sub-steps:
    • Remove the fuel cap and inspect for any cracks or wear.
    • If defective, replace with a new, OEM fuel cap.
    • Reinstall the fuel cap and ensure it clicks securely.
3. Fuel System Inspection
  • Sub-steps:
    • Connect a fuel pressure gauge to the fuel rail.
    • Turn the ignition to the "ON" position (do not start the engine) and check the fuel pressure reading.
    • If pressure is low, inspect the fuel pump and replace if necessary.
4. Cleaning Fuel Injectors
  • Sub-steps:
    • Remove the intake manifold if needed to access the fuel injectors.
    • Disconnect the fuel lines and electrical connectors from the injectors.
    • Use an injector cleaning kit or ultrasonic cleaner to clean the injectors.
    • Reinstall the injectors, ensuring they are properly seated and connected.
5. EVAP System Check
  • Sub-steps:
    • Inspect the EVAP system for leaks by using a smoke machine or visual inspection.
    • Replace any faulty components such as the EVAP purge valve or charcoal canister.
    • Clear any trouble codes from the OBD-II scanner.