why does my Ram 1500 DT (2019-Present) have a check engine light after oil change

Solution

1. Preparation

• Gather all necessary tools and parts.
• Ensure the vehicle is on a level surface and turn off the engine.
• Disconnect the battery to prevent any electrical issues during inspection.

2. Check Oil Level and Quality

• Remove the dipstick and wipe it clean.
• Reinsert the dipstick, then remove it again to check the oil level.
• If low, add the appropriate oil type as specified in the owner's manual.
• If the oil appears dirty or has metal particles, consider an oil change.

3. Inspect Oil Filter

• Locate the oil filter and ensure it is properly installed.
• If loose or not properly seated, tighten or replace the filter.
• Check for any leaks around the filter. If leaking, replace the filter.

4. Examine Engine Components

• Visually inspect wiring harnesses and sensors around the oil filter and engine for any disconnections or damage.
• Reconnect any loose connectors securely.

5. Reset Check Engine Light

• After addressing any issues found, reconnect the battery.
• Use the OBD-II scanner to clear the check engine light codes.
• Ensure the vehicle is running normally before concluding the repair.