Ram 1500 DT (2019-Present) oil pressure warning light keeps coming on, what to do?

Ram 1500 DT (2019-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

4 min read

628 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix the oil pressure warning light issue in Ram 1500 DT (2019-Present). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Engine

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Allow engine to cool before opening the oil drain plug or working on engine components.

Symptoms

•Oil pressure warning light illuminated on the dashboard
•Engine noise, such as ticking or knocking
•Reduced engine performance or power
•Oil leaks visible under the vehicle
•Engine overheating
•Low oil level in the engine

Diagnostic Steps

1
Check the engine oil level using the dipstick to ensure it is within the recommended range.
2
Scan the vehicle’s computer using an OBD-II scanner for any fault codes related to the oil pressure system.
3
Inspect the oil pressure sending unit for any visible damage or leaks.
4
Use a mechanical oil pressure gauge to test the actual oil pressure while the engine is running.
5
Inspect for any oil leaks around the oil pan, oil filter, and associated seals.
6
Check the condition of the engine oil for contamination or degradation.

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
•Mechanical oil pressure gauge
•Oil drain pan

Parts Required

•Oil pressure sending unit
•Engine oil (correct type and grade)
•Oil filter

Related Faults

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Diagnostic Steps

1
Check the engine oil level using the dipstick to ensure it is within the recommended range.
2
Scan the vehicle’s computer using an OBD-II scanner for any fault codes related to the oil pressure system.
3
Inspect the oil pressure sending unit for any visible damage or leaks.
4
Use a mechanical oil pressure gauge to test the actual oil pressure while the engine is running.
5
Inspect for any oil leaks around the oil pan, oil filter, and associated seals.
6
Check the condition of the engine oil for contamination or degradation.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the battery to prevent any electrical shorts.

2. Check and Top Off Engine Oil

Remove the dipstick and wipe it clean.
Insert it back into the tube, then remove it again to check the oil level.
If low, add the appropriate type and grade of oil (consult owner's manual) until the level is correct.

3. Replace Oil Pressure Sending Unit

Locate the oil pressure sending unit (usually near the oil filter).
Disconnect the electrical connector from the sending unit.
Use a socket wrench to remove the sending unit.
Apply Teflon tape to the threads of the new sending unit and install it. Torque to manufacturer's specifications (usually around 15-20 ft-lbs).
Reconnect the electrical connector.

4. Inspect and Replace Oil Filter

Locate the oil filter and remove it using an oil filter wrench.
Ensure the rubber O-ring comes off with the filter.
Install a new oil filter, ensuring it is properly seated and tightened (usually hand-tight).
Check for any debris or metal shavings in the filter.

5. Change Engine Oil

Place an oil drain pan under the oil pan and remove the drain plug.
Allow old oil to drain completely.
Replace the drain plug and tighten to specifications (typically around 20 ft-lbs).
Add new oil through the oil fill cap.

6. Final Checks

Reconnect the battery.
Start the engine and check for oil leaks around the sending unit and oil filter.
Monitor the oil pressure warning light to ensure it does not illuminate again.