Ram 1500 DT (2019-Present) check engine light on after oil change what to do

Ram 1500 DT (2019-Present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

524 words

Problem Statement

Learn how to diagnose and fix the check engine light issue after an oil change in Ram 1500 DT. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Engine

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Allow the engine to cool before working on the vehicle to prevent burns.
•Disconnect the battery before servicing electrical components.

Symptoms

•Check engine light illuminated
•Possible oil leak or low oil level
•Rough engine idle
•Engine misfire or reduced power
•Increased engine noise

Diagnostic Steps

1
Scan the vehicle's onboard computer using an OBD-II scanner to retrieve any error codes.
2
Check the oil level using the dipstick to ensure it is at the appropriate level.
3
Inspect for any visible oil leaks around the oil filter and drain plug.
4
Verify that the correct oil type and viscosity were used during the oil change.
5
Inspect the oil filter to ensure it was properly installed and is not clogged.
6
Clear any error codes and see if the check engine light returns after a short drive.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•OBD-II scanner
•Socket set
•Oil filter wrench
•Torque wrench
•Multimeter

Parts Required

•Engine oil (as per specifications)
•Oil filter (if defective)

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Diagnostic Steps

1
Scan the vehicle's onboard computer using an OBD-II scanner to retrieve any error codes.
2
Check the oil level using the dipstick to ensure it is at the appropriate level.
3
Inspect for any visible oil leaks around the oil filter and drain plug.
4
Verify that the correct oil type and viscosity were used during the oil change.
5
Inspect the oil filter to ensure it was properly installed and is not clogged.
6
Clear any error codes and see if the check engine light returns after a short drive.

Solution

1. Preparation

Tools Required: OBD-II scanner, socket set, oil filter wrench, torque wrench, multimeter (optional).
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the negative battery terminal to reset any electronic systems (if necessary).

2. Inspect and Correct Oil Level

Remove the dipstick and wipe it clean, reinsert, then remove it again to check the oil level.
If low, add oil of the specified type and viscosity as per manufacturer specifications.

3. Check for Leaks

Inspect the area around the oil filter and drain plug.
If any leaks are found, tighten the drain plug to the specified torque (typically 20-25 ft-lbs) and ensure the oil filter is seated properly.

4. Verify Oil Filter Installation

Using an oil filter wrench, remove the oil filter and inspect the rubber O-ring for damage.
Replace the filter with a new one if it is defective, ensuring it is lubricated with a little new oil before installation.
Reinstall the filter, hand-tighten it, and check for leaks.

5. Clear Error Codes and Test Drive

Reconnect the battery terminal (if disconnected) and use the OBD-II scanner to clear any error codes.
Take the vehicle for a short test drive to see if the check engine light returns.