My neighbor has a 2003 Jeep Liberty Sport. Problem having is around 30-40 MPH, starts acting like cutting out & jerking. OTC codes read P0725 Engine Speed Sensor Circuit Malfunction. Dealer says it takes 2 of the same sensors (one input & one output). Does this sound like the problem & if so does anyone know where I can see a diagram of where they go for removal & installation. Thanks.

A lot of information, including wiring diagrams,is on line through your local library which you can access from home once you have a library #.
A Haynes Manual may help as well.

The following sites should help:
http://www.wjjeeps.com/speed_sensors.htm

http://www.atsgmiami.com/articles/html/Jeep%2042RLE%20Supplement/Jeep%2042RLE%20Supplement.htm