I AI a CHEVY MALIBU AND MY SUDDEN RISES OF TRANSMISSION SOMETIMES AND AFTER HAVE WHILE IT REFINES? WHICH IS THE PROBLEM

I have a malibu chevy and does my sudden rises of transmission sometimes and after one moment refine? which is the problem when I lead my malibu the transmission increases only when the engine is at a normal temperature and the problem is him the fact sometimes not that all the DA times. After one moment I lead it that it does not do it more it does not act very well as it do not have any problem. which is the problem? The best answer for me have a malibu chevy and does my sudden rises of transmission sometimes and after one moment refine? what is the problem read more

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