my Acura MDX YF3 (2022-Present) transmission fluid is leaking

Symptoms

• Visible transmission fluid puddle under the vehicle.
• Low transmission fluid warning light on the dashboard.
• Slipping gears or difficulty shifting.
• Rough or delayed engagement when shifting into drive or reverse.
• Unusual noises (grinding or whining) when the vehicle is in gear.

Diagnostic Steps

1. Visual Inspection:

   • Park the vehicle on a level surface and turn off the engine.
   • Inspect the ground under the transmission for any fluid puddles.
   • Check the transmission oil pan and surrounding areas for signs of wetness or fluid stains.

2. Check Fluid Level:

   • With the engine running and transmission in "Park," pull out the transmission dipstick (if equipped).
   • Wipe it clean and reinsert it, then check the fluid level. Low fluid levels can indicate a leak.

3. Inspect Transmission Components:

   • Look for leaks around the following components:
     • Transmission pan gasket.
     • Transmission cooler lines.
     • Seals around the transmission.
     • Torque converter.
   • Check for any damaged or worn components.

4. Use an OBD-II Scanner:

   • Scan the vehicle's computer for any transmission-related error codes that may indicate issues.

5. Pressure Test:

   • Use a pressure gauge to check for proper fluid pressure in the transmission system.

Repair Instructions

Tools Required

• Jack and jack stands or a hydraulic lift
• Socket set
• Torque wrench
• Transmission fluid (specific to Acura MDX specifications)
• OBD-II scanner
• Transmission fluid pressure gauge
• Rags for cleanup

Steps to Repair

1. Lift the Vehicle:

   • Safely lift the vehicle and support it with jack stands.

2. Identify the Leak Source:

   • Confirm the leak source identified during the diagnostic steps.

3. Replace Gasket/Seals:

   • If the leak is from the transmission pan gasket:
     • Remove the transmission pan by unbolting it using the socket set.
     • Clean the mating surfaces on the transmission and the pan.
     • Replace the old gasket with a new one and reattach the pan, torquing the bolts to specifications.
   • If the leak is from a seal (e.g., output shaft seal):
     • Remove the driveshaft or components as necessary to access the seal.
     • Replace the seal and reassemble.

4. Replace Fluid:

   • If the fluid level is low, refill the transmission with the correct type of fluid.
   • Use a funnel to avoid spills and fill to the recommended level.

5. Check for Leaks:

   • Start the engine and let it reach operating temperature.
   • Check the repaired areas for any signs of leakage.

Safety Warnings

• Always use jack stands when working under a vehicle.
• Wear gloves and safety glasses to protect against fluid exposure.
• Dispose of old transmission fluid properly, following local regulations.