my Ram 1500 DT (2019-Present) has a check engine light and no power, what should I do?

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, multimeter, fuel pressure gauge, safety goggles, gloves.
• Ensure the vehicle is parked on a flat surface and the engine is off. Disconnect the negative battery terminal for safety.

2. Address Fault Codes

• Reconnect the OBD-II scanner and retrieve the fault codes.
• Research the codes to determine the specific areas requiring attention (e.g., P0300 - Random Misfire, P0420 - Catalyst Efficiency).

3. Inspect and Repair High-Impact Areas

• Air Intake System:
  1. Remove the air intake duct and filter.
  2. Inspect for debris or damage; clean or replace as necessary.
• Fuel System:
  1. Connect the fuel pressure gauge to the fuel rail.
  2. Check the pressure against manufacturer specifications; replace the fuel filter or pump if necessary.
• Electrical System:
  1. Use a multimeter to check battery voltage (should be around 12.6V when off and 13.7-14.7V when running).
  2. Tighten or replace corroded battery terminals as needed.

4. Exhaust System Inspection

• Inspect the exhaust for any blockages, such as a clogged catalytic converter.
• If blockage is found, either replace the converter or consider cleaning it, depending on the severity.

5. Reassemble and Reset

• Reassemble any components that were removed during inspection.
• Reconnect the negative battery terminal.
• Clear any fault codes using the OBD-II scanner.