THE DIESEL ENGINE STARTS/RUNS OK FROM COLD BUT AS SOON AS IT WARMS UP IT LIKES MISSES BUT NOT ALL THE TIME AND ALSO LACKS POWER AT SAME TIME. HAD A COUPLE OF MECHANICS HAVE A LOOK, THEY SUGGESTED IT COULD BE EITHER PUMP OR INJECTOR PROBLEM SO IVE BEEN TOLD. CAN ANYONE GIVE ME ANY ADVICE. CHANGED FUEL FILTER AND AIR FILTER BUT STILL GOT THE SAME SYMPTOMS. THANKS

Mark, October 2009