I have a 1999 discovery II that keeps running hot. New thermostat & cap on 1999 Land Rover Discovery

stays cool when idle but when I drive about 2 miles it runs hot and I hear some knocking and see smoke on the driver side of the engine.

by in Houston, TX on November 20, 2012
2 answers
ANSWER by on November 20, 2012
possibly bad head gasket
ANSWER by on November 20, 2012
how many miles poss rad blockage