what causes my Ram 1500 DT (2019-Present) to stall while driving

Solution

1. Preparation

• Gather required 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. Fuel System Inspection

• Sub-steps:
  1. Locate the fuel pump relay and remove it.
  2. Use a fuel pressure gauge to check the fuel pressure at the fuel rail. It should be within manufacturer specifications (typically 60-65 psi for the Ram 1500).
  3. If pressure is low, inspect the fuel pump and fuel filter for clogs or failure. Replace if necessary.
  4. Reinstall the fuel pump relay.

3. Ignition System Check

• Sub-steps:
  1. Remove spark plugs and inspect for signs of wear (e.g., carbon buildup or damage).
  2. Replace worn spark plugs with the manufacturer's specified plugs.
  3. Test ignition coils with a multimeter to ensure they are within resistance specifications.
  4. Replace any faulty ignition coils.

4. Air Intake System Examination

• Sub-steps:
  1. Inspect the air filter for dirt or blockage; replace if necessary.
  2. Check the intake manifold for leaks or cracks.
  3. Clean the throttle body using throttle body cleaner to ensure proper airflow.

5. Electrical System Test

• Sub-steps:
  1. Use a multimeter to check battery voltage; it should read around 12.6 volts (engine off) and 13.7-14.7 volts (engine running).
  2. Inspect and clean all ground connections to the engine and chassis.
  3. Test the alternator output; replace if it fails to maintain proper voltage.