why is my Ram 1500 DT (2019-Present) transmission slipping when accelerating

Ram 1500 DT (2019-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

524 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 transmission slipping in Ram 1500 DT (2019-Present). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always allow the engine to cool before working on the transmission
•Disconnect the battery before working on electrical systems

Symptoms

•Transmission slips or delays when shifting gears
•Engine RPM increases without corresponding vehicle speed increase
•Harsh or erratic shifting
•Check engine light illuminated
•Fluid leaks under the vehicle
•Burning smell from the transmission area

Diagnostic Steps

1
Scan the vehicle’s computer for any error codes using an OBD-II scanner
2
Check the transmission fluid level and condition (color and smell)
3
Inspect the transmission fluid for contamination or burning
4
Verify if there are any visible leaks in the transmission lines or seals
5
Test the transmission solenoids using a multimeter for proper voltage and resistance
6
Perform a road test to observe shifting patterns and behaviors under various conditions

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
•Multimeter
•Transmission fluid pump
•Fluid catch pan

Parts Required

•Transmission filter
•Transmission fluid (ATF+4)
•Transmission pan gasket (if needed)

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Diagnostic Steps

1
Scan the vehicle’s computer for any error codes using an OBD-II scanner
2
Check the transmission fluid level and condition (color and smell)
3
Inspect the transmission fluid for contamination or burning
4
Verify if there are any visible leaks in the transmission lines or seals
5
Test the transmission solenoids using a multimeter for proper voltage and resistance
6
Perform a road test to observe shifting patterns and behaviors under various conditions

Solution

1. Preparation

Tools Required: OBD-II scanner, socket set, multimeter, transmission fluid pump, fluid catch pan.
Ensure the vehicle is on a level surface and secure with jack stands.
Disconnect the battery to prevent electrical shorts.

2. Fluid Inspection and Replacement

Check Fluid Level:
- Remove the dipstick and wipe it clean.
- Reinsert and remove again to check fluid level.
Change Fluid:
- Place a fluid catch pan under the transmission.
- Remove the transmission pan bolts and gently lower the pan.
- Allow old fluid to drain completely.
Replace Filter:
- Remove the old transmission filter and replace it with a new one.
- Ensure the filter is seated properly.

3. Transmission Fluid Replacement

Reinstall the transmission pan and torque the bolts to the manufacturer's specifications (typically around 10-12 ft-lbs).
Use a transmission fluid pump to fill the transmission with the recommended fluid (typically ATF+4 for Ram 1500).
Start the engine and cycle through the gears to circulate fluid.

4. Solenoid Inspection/Replacement

Locate the transmission solenoids based on service manual.
Disconnect the wiring harness and remove the solenoids.
Test each solenoid using a multimeter. Replace any solenoid that does not meet specifications.

5. Final Checks

Reconnect the battery.
Clear any error codes using the OBD-II scanner.
Take the vehicle for a test drive to ensure proper shifting and that the slipping issue is resolved.