04 G35 3 different transmissions all slipping in 5th.
04 G35 3 different transmissions all slipping in 5th.
Got this car about 8 months ago. It started leaking transmission fluid and slipping in 5th gear after about 4 or 5 months. Bought used tranny and had a transmission shop replace it. The new onewas doing the exact same thing. Got a claim on the tranny and they sent another, 3rd tranny doing the exact same thing. Starting to think it's not the transmission. They scanned it and i scanned it and there are no codes. This has a z1 intake and exhaust and is flame tuned. HELP.
Last edited by FRANKNBEANS127; Feb 14, 2023 at 09:46 AM. Reason: More info
Makes me think you have a bad TCM, is your TCM located in the passenger footwell below the glove box?
If so that's your likely culprit. 2003-2004.5 had an external TCM, 2004.5+ the TCM was inside the transmission.
If so that's your likely culprit. 2003-2004.5 had an external TCM, 2004.5+ the TCM was inside the transmission.
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