Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSDODGE AND RAM2024DURANGO SRT HELLCAT PLUSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 113 (8HP70 AUTOMATIC TRANSMISSION - PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE, TRANSMISSION VERIFICATION TEST, TCM PROGRAMMING PROCEDURE AND TCM ADAPTATION)STANDARD PROCEDURETRANSMISSION VERIFICATION TESTTRANSMISSION VERIFICATION TEST-8HP70
2024 Dodge and Ram Durango SRT Hellcat Plus
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.
- Reinstall any removed components.
- Reconnect any disconnected electrical connectors.
- With the scan tool, erase TCM DTCs.
- With the scan tool, erase ESM DTCs.
- With the scan tool, erase ABS DTCs.
- With the scan tool, erase PCM DTCs.CAUTION:
Apply the parking brake.
- With the scan tool, display the Transmission Temperature.
- Start the engine and allow the transmission fluid temperature to reach 43° C (110° F).
- Check for Transmission fluid leaks.
- If internal transmission components were repaired or replaced check the Transmission fluid level and adjust if necessary. Refer to FLUID AND FILTER, STANDARD PROCEDURE .
- 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 .
- Perform the ROAD TEST PROCEDURE ROAD TEST PROCEDURE
- Operate the vehicle in a manner that will allow 15-20 upshifts through all of the gears.
- 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.
- 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).
- With the scan tool, read TCM DTCs.
Did any TCM DTCs set?
Yes
- Repair TCM DTCs. Refer to 8HP70 AUTOMATIC TRANSMISSION, DIAGNOSTIC CODE INDEX .
No
- Test complete.
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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.