2005 Malibu.normally when I let off gas the car glides smoothly ahead.today after I lightly backed into a parked car I parking lot.im driving and let off gas the car slows down instead off gliding.is it the transmission or electrical.

 

It could also be the brakes. Does it accelerate normally?

 

hi old chevy.it accelerated just fine.took the car out last night and there was npo problem.it glided as usally .don't why it acted up but it's fine now.if something comes up i'll post again.so thanks for your answer.i'll be closing this post now