why does my Ram 1500 DT (2019-Present) transmission jerk when accelerating

Ram 1500 DT (2019-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

600 words

Problem Statement

Learn how to diagnose and fix transmission jerking issues in 2019 Ram 1500 DT. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always disconnect the battery before working on electrical systems.
•Allow the engine to cool before opening the transmission or working with fluids.

Symptoms

•Jerking sensation during acceleration
•Delayed engagement when shifting from park to drive
•Unusual noises (clunking or grinding) during gear shifts
•Inconsistent RPM fluctuations while accelerating
•Check engine light illuminated

Diagnostic Steps

1
Scan the vehicle's onboard diagnostics using an OBD-II scanner to check for error codes related to the transmission.
2
Inspect the transmission fluid level and condition; ensure it is at the correct level and not burnt or contaminated.
3
Check for any visible leaks under the vehicle, especially around the transmission pan and cooler lines.
4
Examine the transmission control module (TCM) wiring for any signs of damage or corrosion.
5
Test drive the vehicle to replicate the jerking issue and note specific conditions (speed, engine load) when it occurs.
6
Inspect engine mounts and transmission mounts for wear or damage that could affect shifting.

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
•Transmission fluid pump
•Fluid catch pan
•Multimeter

Parts Required

•Transmission fluid
•Transmission filter
•Gasket for transmission pan

Related Faults

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Diagnostic Steps

1
Scan the vehicle's onboard diagnostics using an OBD-II scanner to check for error codes related to the transmission.
2
Inspect the transmission fluid level and condition; ensure it is at the correct level and not burnt or contaminated.
3
Check for any visible leaks under the vehicle, especially around the transmission pan and cooler lines.
4
Examine the transmission control module (TCM) wiring for any signs of damage or corrosion.
5
Test drive the vehicle to replicate the jerking issue and note specific conditions (speed, engine load) when it occurs.
6
Inspect engine mounts and transmission mounts for wear or damage that could affect shifting.

Solution

1. Preparation

Tools Required: OBD-II scanner, socket set, transmission fluid pump, fluid catch pan, multimeter.
Gather necessary parts (transmission fluid, gasket, filter) if required.
Ensure the vehicle is parked on a level surface and the engine is off.

2. Transmission Fluid Inspection

Remove the transmission dipstick and check the fluid level.
If low, add the appropriate transmission fluid as specified in the owner's manual.
If the fluid appears dark or burnt, proceed to change the fluid and filter.

3. Fluid Change Procedure

Drain Fluid:
- Place a fluid catch pan under the transmission pan.
- Remove the transmission pan bolts and carefully lower the pan to drain the fluid.
Replace Filter:
- Remove the old transmission filter. Ensure all residues are cleaned from the mounting surface.
- Install the new filter, ensuring it is seated properly.
Install New Gasket:
- Clean the transmission pan thoroughly and apply a new gasket.
- Reinstall the transmission pan and torque the bolts to the manufacturer's specifications (usually around 10-12 ft-lbs).
Refill Transmission Fluid:
- Use a transmission fluid pump to add new fluid through the dipstick tube.
- Start the engine and let it idle; check the fluid level again and add as necessary.

4. TCM Inspection and Reprogramming

Inspect Wiring:
- Check for any damaged or corroded wires connected to the TCM.
- Repair or replace any damaged wiring as needed.
Reprogram TCM:
- If necessary, use an OBD-II scanner to reprogram the TCM or update software as per manufacturer recommendations.