my Ram 1500 DT (2019-Present) has a check engine light and low power, what’s wrong?

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Address Fault Codes

• Sub-step 1: Use the OBD-II scanner to read and record any trouble codes.
• Sub-step 2: Research the codes to understand the underlying issues (e.g., P0300 for misfires).

3. Replace Faulty Components

• Sub-step 1: If a faulty spark plug is identified, remove the ignition coils using a socket set.
• Sub-step 2: Replace the spark plugs with new ones, ensuring proper gap settings as specified by the manufacturer.
• Sub-step 3: Reinstall ignition coils and torque to the specified value (generally around 89 in-lbs).

4. Fuel System Inspection

• Sub-step 1: If low pressure is indicated, replace the fuel filter and check the fuel pump function.
• Sub-step 2: If the fuel pump is faulty, remove the fuel pump assembly from the tank, replace it, and reassemble.

5. Vacuum Leak Repair

• Sub-step 1: Inspect all vacuum lines visually; replace any that are cracked or damaged.
• Sub-step 2: Use a smoke machine to detect any hidden leaks if necessary.

6. Exhaust System Check

• Sub-step 1: Inspect the exhaust for any blockages or damage; replace any damaged sections of piping or the catalytic converter if needed.