my Ram 1500 DT (2019-Present) is shaking at idle what should I do

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, torque wrench, vacuum gauge, fuel pressure gauge
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the negative battery cable to avoid electrical shorts.

2. Inspect Engine Mounts

• Sub-steps:
  • Locate the engine mounts (usually at the front and rear of the engine).
  • Visually inspect for cracks, wear, or separation.
  • Use a floor jack to lift the engine slightly and check for excessive movement in the mounts.
• Replacement: If damaged, replace with OEM parts and torque to manufacturer's specifications.

3. Check for Vacuum Leaks

• Sub-steps:
  • Use a vacuum gauge to check the intake manifold vacuum.
  • Inspect hoses connected to the intake for cracks or disconnections.
  • Spray carburetor cleaner around the intake area and listen for changes in engine RPM to identify leaks.

4. Inspect and Replace Spark Plugs

• Sub-steps:
  • Remove the spark plug wires and unscrew the spark plugs using a socket wrench.
  • Inspect plugs for wear, carbon build-up, or damage.
  • Replace with OEM specifications and torque to proper values (typically 13-15 lb-ft).

5. Test Fuel Pressure

• Sub-steps:
  • Connect the fuel pressure gauge to the fuel rail.
  • Turn the ignition key to the ON position (do not start the engine) and check the pressure reading against manufacturer specifications.
  • If the pressure is low, inspect the fuel pump and filter for issues.

6. Inspect Ignition System

• Sub-steps:
  • Check the ignition coils for damage and ensure they are securely connected.
  • Inspect plug wires for cracks or poor connections.
  • Replace any faulty components with OEM parts.