I have a friend HonestOk an aquaintance (who is not on line therwise he would join the forum)who has a problem with his 2.7 2002 CRD Grand Cherokee (merc engine)The engine managment light is on and it occasionaly loses powerIf he stops and turns the ignition off and back on again it is ok for the next 20 miles.This happens when the jeep is ususally under load.ie towing.The jeep stealers reckon it might be (they still dont know) the injectors.The starting price for this is £500 Any ideas