how to fix Ram 1500 DT (2019-Present) if it won't shift into gear

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 shifting issues 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

•Disconnect battery before work

Symptoms

•Transmission warning light illuminated on the dashboard
•Difficulty shifting from park to drive or reverse
•Erratic shifting behavior occurring during driving
•Unusual noises such as grinding or clunking when attempting to shift
•Engine revs without corresponding vehicle movement

Diagnostic Steps

1
Scan the vehicle's onboard computer using an OBD-II scanner to check for any error codes related to the transmission.
2
Inspect the transmission fluid level and condition; look for signs of contamination or burnt smell.
3
Examine the transmission linkage for any physical obstructions or damage.
4
Check the battery voltage and the condition of the battery terminals, as low voltage can affect electronic shifting systems.
5
Inspect the transmission control module (TCM) for proper connections and signs of damage or corrosion.
6
Test the vehicle's brake switch operation, as a malfunctioning brake switch can prevent shifting from park.

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
•Fluid catch pan
•Socket set
•Wrench set
•Multimeter
•Screwdriver

Parts Required

•Transmission fluid
•Transmission filter (if applicable)
•Transmission pan gasket
•Transmission control module (if replacement is necessary)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Scan the vehicle's onboard computer using an OBD-II scanner to check for any error codes related to the transmission.
2
Inspect the transmission fluid level and condition; look for signs of contamination or burnt smell.
3
Examine the transmission linkage for any physical obstructions or damage.
4
Check the battery voltage and the condition of the battery terminals, as low voltage can affect electronic shifting systems.
5
Inspect the transmission control module (TCM) for proper connections and signs of damage or corrosion.
6
Test the vehicle's brake switch operation, as a malfunctioning brake switch can prevent shifting from park.

Solution

1. Preparation

Ensure the vehicle is on a level surface and turn off the ignition.
Disconnect the battery by removing the negative terminal to prevent electrical shorts.
Gather necessary tools and parts.

2. Check and Replace Transmission Fluid

Tools Required: Transmission fluid pump, fluid catch pan, funnel.
Remove the transmission fluid dipstick and check the fluid level.
- If low, add the manufacturer-recommended transmission fluid until the correct level is achieved.
- If the fluid is dark or has a burnt smell, proceed to drain and replace the fluid:
1. Place a fluid catch pan under the transmission pan.
2. Remove the transmission pan bolts and carefully drop the pan.
3. Allow the old fluid to fully drain.
4. Replace the transmission filter if applicable.
5. Clean the pan and reinstall it with a new gasket, torquing the bolts to the manufacturer's specifications.
6. Refill with the recommended transmission fluid type.

3. Inspect and Repair Transmission Linkage

Tools Required: Socket set, wrench set, screwdriver.
Locate the transmission linkage connecting to the transmission.
1. Inspect for any physical damage or misalignment.
2. Adjust or replace any worn or damaged linkage components.
3. Ensure proper connections are secure.

4. Test the Transmission Control Module (TCM)

Tools Required: OBD-II scanner, multimeter.
Reconnect the battery and start the vehicle.
1. Use the OBD-II scanner to check for any persistent error codes related to the TCM.
2. If codes are present, reset them and observe if they return after a test drive.
3. If necessary, inspect wiring and connections to the TCM for integrity and continuity using a multimeter.
4. Replace the TCM if it shows signs of failure.