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Okay, so i bought this car about 6 months ago from my brothers friends. Now heres the problem...

At first the engine was shifting heavy and idleing high and low. My Brother fixed the idleing problem, and my mom drove the car home... After that I went to start the vehicle and my d4 light flashes it has never done that before. I looked in the book it said it has to do with the Transmission. We checked fluids and all are fine...

Now heres my question...

Could there possibly be a vaccum leak that would cause this or is this signs my Transmission might be going out??

Hope someone can help me... im kind of money tight so hoping there is an easy fix.

Thanks for your time and advice

Michelle