Problems with gearbox (lost even/odds gears). Need help

[Lobster]

A few days ago I got a problem. Yesterday it happend few times and I decided to go to a servise...
During an aceleration there is an impact in the transmission and next you loose some gears. So if you are one the 1st and you rise the speed of engine, there is no shift to 2nd, but when you rise it further there is a shift to 3rd (automatic mode). When you are braking, it goes from 3rd to 1st. In the manual mode you can't choose even-numbered gears by gearshift paddles, just 1-3-5-3-1. Sometimes you loose odd-numbered gears so you can shift just 2-4-6-4-2. When you turn off the engine, the problem disappears. You can drive normally some time, but during quick accelerations it could happen.
People from service said today that they found a leakage from the gearbox. They ordered some pipes that will be shipped in 1 month (!). They are not sure that these pipes are the reason of my problem, but they say that it is the best they can do now.
Any thoughts? May be some of you have encountered similar issues and resolved them?
Please help

[avlnch]

Someone else just posted a problem similar to yours. He was unable to shift into even number gears and he would get stuck in 1st. Problem would go away but only for short time after restarting the car.

His thread is in the general section (same section you posted). Maybe PM him. Looks like both of you are in the same boat.

[thebishman]

Sounds like a bad solenoid not allowing you to use the even numbered gears. This happened quite a few times with the early GT-Rs.

Hope you get it sorted soon.

Bish