I am having problems with my cars RPM on 1999 Plymouth Breeze

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

by in Las Vegas, NV on August 22, 2010
2 answers
ANSWER by on August 23, 2010
Hello, Mike from Allied Service Center here. The problems that you are describing can be caused by a few different things. The good news is that your symptoms are not uncommon, however, this is one of those types of concerns which require at least a road test. If you would like to schedule a free road test, please feel free to call us at 364-0566. Mike, Larry, or Sandy would be happy to help you. Thanks...
ANSWER by on June 02, 2013
have the transmission mounts checked
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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.