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my Ram 1500 DT (2019-Present) gets poor fuel economy, what's causing it? - Ram 1500
Home/Cars/Ram/1500/DT (2019-Present)/my Ram 1500 DT (2019-Present) gets poor fuel economy, what's causing it?

my Ram 1500 DT (2019-Present) gets poor fuel economy, what's causing it?

Ram 1500 DT (2019-Present)

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

Problem Statement

Discover how to diagnose and resolve poor fuel economy issues in Ram 1500 DT (2019-Present). Step-by-step guide with diagnostic and repair instructions.

Affected Component
Fuel System
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 opening any components

Symptoms

  • •Check engine light illuminated
  • •Rough engine idle
  • •Decreased acceleration
  • •Unusual engine noises
  • •Increased exhaust emissions
  • •Poor throttle response

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
  • •Torque wrench
  • •Tire pressure gauge

Parts Required

  • •Air filter
  • •Fuel filter (if applicable)
  • •Fuel injectors (if cleaning is ineffective)
  • •Spark plugs

Additional Information

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

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Solution
1. Preparation
  • Gather all necessary tools and parts.
  • Park the vehicle on a flat surface and engage the parking brake.
  • Disconnect the battery before working on electrical systems.
2. Replace Air Filter
  • Locate the air filter housing.
  • Remove the clips or screws holding the housing lid and lift it off.
  • Take out the old air filter and inspect the housing for debris.
  • Install a new air filter, ensuring it fits snugly.
  • Reassemble the housing and secure it.
3. Fuel Pressure Test
  • Connect the fuel pressure gauge to the fuel rail test port.
  • Turn the ignition to the "On" position to pressurize the system without starting the engine.
  • Compare the reading to the manufacturer’s specifications. If it’s low, proceed to check the fuel pump and filter.
  • If necessary, replace the fuel filter and/or fuel pump.
4. Inspect and Clean Fuel Injectors
  • Remove the fuel injectors from the intake manifold.
  • Use a professional fuel injector cleaner kit to clean the injectors.
  • Reinstall the cleaned injectors ensuring proper seating and connections.
5. Replace Spark Plugs
  • Remove the ignition coil for each spark plug.
  • Use a socket and ratchet to unscrew the old spark plugs.
  • Check the gap on new spark plugs and adjust if necessary.
  • Install the new spark plugs and reconnect the ignition coils.
6. Tire Pressure Check
  • Use a tire pressure gauge to check the pressure of each tire.
  • Inflate or deflate tires as needed to match the manufacturer’s recommended pressure.
  • Inspect tires for uneven wear or damage and replace if necessary.