how to troubleshoot Ram 1500 DT (2019-Present) transmission slipping

Ram 1500 DT (2019-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

578 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 troubleshoot and fix transmission slipping in Ram 1500 DT (2019-Present). Step-by-step guide with diagnostic steps and repair instructions.

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine and transmission to cool before opening the pan to prevent burns.

Symptoms

•Transmission hesitation during acceleration
•Unusual engine revving without corresponding vehicle speed increase
•Difficulty shifting gears
•Check engine light illuminated
•Fluid leaks under the vehicle
•Increased RPMs during normal driving conditions

Diagnostic Steps

1
Scan the vehicle's OBD-II system for any error codes related to the transmission.
2
Inspect the transmission fluid level and condition; look for signs of contamination or burning.
3
Check for any external leaks around the transmission case, cooler lines, and seals.
4
Inspect the transmission wiring harness and connectors for damage or corrosion.
5
Test the transmission solenoids for proper function using a multimeter.
6
Evaluate the condition of the transmission filter and pan for debris or metal shavings.

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
•Multimeter
•Socket set
•Torque wrench
•Fluid catch pan
•Cleaning supplies

Parts Required

•Transmission fluid
•Transmission filter
•Gasket for transmission pan
•Transmission solenoids (if faulty)

Related Faults

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Diagnostic Steps

1
Scan the vehicle's OBD-II system for any error codes related to the transmission.
2
Inspect the transmission fluid level and condition; look for signs of contamination or burning.
3
Check for any external leaks around the transmission case, cooler lines, and seals.
4
Inspect the transmission wiring harness and connectors for damage or corrosion.
5
Test the transmission solenoids for proper function using a multimeter.
6
Evaluate the condition of the transmission filter and pan for debris or metal shavings.

Solution

1. Preparation

Gather tools: OBD-II scanner, multimeter, socket set, torque wrench, fluid catch pan, and cleaning supplies.
Ensure the vehicle is parked on a level surface and set the parking brake.
Disconnect the battery to prevent electrical shorts.

2. Fluid Replacement

Drain Old Fluid
- Position the fluid catch pan under the transmission pan.
- Remove the transmission pan bolts using the socket set and carefully lower the pan to drain the old fluid.
- Clean the pan thoroughly and inspect for any metal shavings or debris.
Replace Filter
- Remove the old transmission filter and inspect for clogs.
- Install a new transmission filter, ensuring it is seated correctly.
Install New Fluid
- Reattach the transmission pan using a new gasket.
- Tighten the bolts to the manufacturer’s specified torque settings.
- Refill the transmission with the recommended fluid type through the dipstick tube, following the service manual specifications.

3. Solenoid Inspection and Replacement

Access Solenoids
- If solenoids were found faulty in diagnostics, remove the transmission pan again to access the solenoids.
Remove Old Solenoids
- Disconnect the electrical connectors and remove the mounting bolts of the faulty solenoids.
Install New Solenoids
- Position the new solenoids and secure them with the mounting bolts.
- Reconnect the electrical connectors.

4. Final Checks

Reconnect Battery
- Reconnect the battery terminals securely.
Test Drive
- Start the vehicle and allow it to reach operating temperature.
- Test drive under various conditions to ensure the transmission shifts smoothly and does not slip.