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

Ram 1500 DT (2019-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

593 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 jerking 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 battery before working on electrical systems.
•Allow the engine to cool before opening the transmission pan to avoid burns.

Symptoms

•Jerking or harsh shifting between gears
•Delayed engagement when shifting from park to drive
•Unusual noises during shifting (clunking or grinding)
•Check engine light illuminated
•Decreased fuel efficiency
•Transmission fluid leaking under the vehicle

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related trouble codes.
2
Check the transmission fluid level and condition; ensure it's within the recommended range and not burnt or contaminated.
3
Inspect the transmission fluid lines and seals for any signs of leaks or damage.
4
Test the transmission control module (TCM) for proper operation using a diagnostic tool.
5
Visually inspect the wiring harness connected to the TCM and transmission for damage or corrosion.
6
Perform a road test to replicate the jerking issue while monitoring transmission performance.

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
•Transmission fluid pump
•Socket set
•Multimeter
•Electrical contact cleaner

Parts Required

•Transmission fluid (ATF+4)
•Transmission filter
•Transmission pan gasket
•Transmission control module (if replacement is necessary)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related trouble codes.
2
Check the transmission fluid level and condition; ensure it's within the recommended range and not burnt or contaminated.
3
Inspect the transmission fluid lines and seals for any signs of leaks or damage.
4
Test the transmission control module (TCM) for proper operation using a diagnostic tool.
5
Visually inspect the wiring harness connected to the TCM and transmission for damage or corrosion.
6
Perform a road test to replicate the jerking issue while monitoring transmission performance.

Solution

1. Preparation

Gather all necessary tools and safety gear.
Ensure the vehicle is on a flat surface and the engine is turned off.
Disconnect the battery to prevent electrical shorts during repairs.

2. Check and Replace Transmission Fluid

Tools Required: Transmission fluid pump, funnel, catch pan, socket set.
Steps:
1. Remove the transmission pan using a socket set.
2. Allow any remaining fluid to drain into the catch pan.
3. Inspect the transmission filter; replace if clogged.
4. Reinstall the pan with a new gasket and torque to manufacturer specifications (usually around 10-12 ft-lbs).
5. Refill the transmission with the correct type of fluid (e.g., ATF+4) using a funnel and transmission fluid pump.

3. Inspect and Repair Wiring and Connectors

Tools Required: Multimeter, electrical contact cleaner, wire strippers.
Steps:
1. Inspect the wiring harness for any signs of fraying or damage.
2. Use a multimeter to test for continuity in the wiring.
3. Clean any corroded connectors with electrical contact cleaner and ensure a secure connection.
4. Repair or replace damaged wiring as necessary.

4. Reprogram or Replace TCM (if necessary)

Tools Required: OBD-II scanner with programming capability.
Steps:
1. Use the OBD-II scanner to attempt a reprogramming of the TCM if error codes suggest a software issue.
2. If reprogramming does not resolve the issue, remove the TCM from its mounting bracket.
3. Install the new TCM following the manufacturer’s instructions and reconnect all wiring.
4. Clear any trouble codes and perform a relearn procedure if necessary.