M30 Trans seems like it is starting in 2nd?

General discussion forum for J30 and M30 owners!
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prts4days
Posts: 9
Joined: Wed Apr 04, 2007 5:25 am
Car: 1990 M30

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I have a 1990 m30 that sat for little while but drove and shifted fine before it sat now it doesn't shift quite right. I can manually shift it to first and then it seems better but if I just put in gear and go it feels like something is hanging up or holding it back. Any ideas? Also is this transmission a basic rebuild or is there any tricks to the assembly? Thanks


chitownq45
Posts: 1
Joined: Fri Apr 06, 2007 3:17 pm
Car: Q45

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Can you let me know if you found out the problem.....I'm having the same problem...seems like when the car is cold the trans shifts fine....but once the car warms up I have the shifting problems as you do and also it seems as if my overdrive doesnt engage either. you can note me here or email me at [email protected]

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elwesso
Posts: 30810
Joined: Sun Feb 23, 2003 4:52 pm
Car: 94 Infiniti Q45t 5 spd
2007 BMW M Coupe
2007 Infiniti G35 S 6MT
Location: Indiana
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It seems as if maybe its in fail-safe. When taht happens it locks in 3rd gear.. I dont have an M30 service manual so I cant give you any procedure how to check the AT codes... Maybe someone else will chime in.



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