Transmission Verification Test-8HP70

2024 Dodge and Ram Durango SRT Hellcat PlusSECTION Transmission Verification Test-8HP70
WARNING: This page is about a different variant/trim than selected.
  1. Reinstall any removed components.
  2. Reconnect any disconnected electrical connectors.
  3. With the scan tool, erase TCM DTCs.
  4. With the scan tool, erase ESM DTCs.
  5. With the scan tool, erase ABS DTCs.
  6. With the scan tool, erase PCM DTCs.
    CAUTION:

    Apply the parking brake.

  7. With the scan tool, display the Transmission Temperature.
  8. Start the engine and allow the transmission fluid temperature to reach 43° C (110° F).
  9. Check for Transmission fluid leaks.
  10. If internal transmission components were repaired or replaced check the Transmission fluid level and adjust if necessary. Refer to FLUID AND FILTER, STANDARD PROCEDURE .
  11. If any internal transmission repairs were performed or the Transmission Control Module (TCM) was replaced, perform the TCM ADAPTATION procedure. Refer to TRANSMISSION CONTROL MODULE (TCM) ADAPTATION  .
  12. Perform the ROAD TEST PROCEDURE ROAD TEST PROCEDURE 
  13. Operate the vehicle in a manner that will allow 15-20 upshifts through all of the gears.
  14. Allow these shifts to occur from 0 kPh (0 mph) to 72 kPh (45 mph) with a constant throttle opening of 20 to 25 degrees.
  15. Operate the vehicle below 40 kPh (25 mph) and then perform a throttle kick-down maneuver to 1st gear. Do this several times from below 40 kPh (25 mph).
  16. With the scan tool, read TCM DTCs.
  17. Did any TCM DTCs set?

    Yes 

No 

  • Test complete.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.