Nissan Repair: Transmission, mazda 626 1987, mazda 626

Question
Hi,
Its a Mazda 626 1987 Automatic drive.

Well, when i start from 0 km/hr and go around 50 km/hr, the rpm suddenly raises from 3 to 6 with a huge sound everytime. So ya, to answer to your question, I'M PICKING UP THE SPEED when it happens. But its not once of those rash stepping on the gas sort of a thing. Even though the speed is increased smoothly, the problem occurs.

I greatly appreciate your time and help.
thanks
Ranga  

Answer
Ranga,
It sounds like the belts are slipping or are to loose.  

You'll have to take it to a shop because the belts are inside the tranny and the tranny needs to be taken apart to be visible.

When the belts are loose it won't hold the gear for a certain amount of time.

Hope this helps,
Good luck
Darrel