I am having problems with the RPM. on 1999 Plymouth Breeze

My car shifts or knocks hard when driving normal on the streets and highway. Yesterday, while driving at 55 mph there is a howling, pitching sound/noise.

Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer
3 speed or 4 speed transmission? Big difference in operation. In either case, check your transmission fluid level. If ok, My suggestion is to take the vehicle to a reputable repair shop of dealership in your are for diagnosis. Here is a link to your local repair facilities. http://repairpal.com/directory?address=89128&car_brand_names=Plymouth