The Predictive Location Based Quality of service Routing protocol (PLBQR) is based on the prediction of the location of nodes in ad hoc wireless networks. The two types of update messages are sent type1 and type 2. In establishing the connection to the destination, the source S first has to predict the geographic location of node D. PLBQR protocol uses location and delay prediction schemes which reduce to some extent the problem arising due to the presence of stale routing information. It estimates the path breaks from the quality of service session and finds the alternate path to reroute the session quickly.