how to fix Ram 1500 DT (2019-Present) delayed shifting issues

Ram 1500 DT (2019-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

592 words

Problem Statement

Learn how to diagnose and fix delayed shifting issues in the 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

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before working on the transmission system.

Symptoms

•Delayed or sluggish gear changes
•Engine revs higher than normal before shifting
•Harsh or abrupt shifts when transitioning between gears
•Check engine light may be illuminated
•Poor fuel economy
•Transmission overheating warnings

Diagnostic Steps

1
Scan the vehicle's onboard computer for Diagnostic Trouble Codes (DTCs) using an OBD-II scanner.
2
Check transmission fluid levels and condition, looking for discoloration or burnt smell.
3
Inspect the transmission range sensor for proper operation.
4
Test the throttle position sensor (TPS) for accurate readings with a multimeter.
5
Evaluate the condition of the transmission control module (TCM) wiring and connections for any signs of wear or damage.
6
Perform a road test to replicate the delayed shifting issue and observe any abnormal behavior.

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
•Transmission fluid pump
•10mm socket
•Torque wrench
•Screwdriver set

Parts Required

•ATF+4 transmission fluid
•Transmission range sensor
•Throttle position sensor (if needed)

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 for Diagnostic Trouble Codes (DTCs) using an OBD-II scanner.
2
Check transmission fluid levels and condition, looking for discoloration or burnt smell.
3
Inspect the transmission range sensor for proper operation.
4
Test the throttle position sensor (TPS) for accurate readings with a multimeter.
5
Evaluate the condition of the transmission control module (TCM) wiring and connections for any signs of wear or damage.
6
Perform a road test to replicate the delayed shifting issue and observe any abnormal behavior.

Solution

1. Preparation

Gather tools and parts required for the repair.
Ensure the vehicle is parked on a flat surface and the engine is off.
Disconnect the battery to prevent any electrical shorts.

2. Check and Replace Transmission Fluid

Sub-steps:
1. Locate the transmission dipstick, remove it, and wipe it clean.
2. Insert the dipstick back into the tube and remove it again to check the fluid level.
3. If low, add the recommended ATF+4 transmission fluid slowly until the correct level is achieved.
4. If the fluid is discolored or smells burnt, proceed to drain and replace it.
Tools Required: Transmission fluid pump, 10mm socket, fluid catch pan.

3. Inspect and Replace Transmission Range Sensor

Sub-steps:
1. Remove the engine cover if necessary to access the transmission range sensor.
2. Disconnect the electrical connector from the sensor.
3. Remove the mounting bolts and carefully take out the sensor.
4. Install the new sensor and secure it with bolts, then reconnect the electrical connector.
Tools Required: 10mm socket, ratchet, torque wrench (for torque specifications).

4. Test and Replace Throttle Position Sensor (if necessary)

Sub-steps:
1. Disconnect the TPS connector.
2. Using a multimeter, check the resistance and voltage output according to the manufacturer's specifications.
3. If readings are out of range, remove the TPS from the throttle body.
4. Install the new TPS and reconnect the connector.
Tools Required: Multimeter, screwdriver set.

5. Reconnect Battery and Clear DTCs

Sub-steps:
1. Reconnect the battery terminals securely.
2. Use the OBD-II scanner to clear any stored error codes from the system.
3. Start the vehicle and allow it to idle for a few minutes.