Downshifting 2003 Elantra GT
 

Folks:

Need some help, my car is downshifting while driving, it stales when stopped. I had the transmission replaced at 110K now I have 119k when the problem stated after having the power steering pump replaced. Any suggestions? Dealership says they don't have any codes to diagnosis the problem adn will charge >$300 to find the issue.

Suggestion and thoughts are welcomed.

thanks

J-