Land Rover Repair: land rover no spark?, rovers north, autozone

Question
hi,
 my name is pete. i have a LAND ROVER 95 3.9L DISCOVERY.
THERE IS NO SPARK OUT OF THE COIL HT TOWER.I BOUGHT A USED COIL AND MODULE AND STILL CAR TRIES TO START BUT DOESNT KICK OVER.BATTERY POWER IS STRONG 12V. I EVEN JUMPED IT TO BE ABSOLUTELY SURE.IT ALL STARTED MONTHS AGO WITH INTERMITTEN START AND NO-START ONLY TO START LATER ON.NOW IT SIMPLY DOESNT WANT TO START.IT HAS STRONG TURNING POWER OUT OF STARTER BUT WITHOUT THE SPARK I'M STUMPED.SO,IS THERE A DEFINITE TEST TO BE SURE OF THE COIL AND/OR MODULE.OR WHAT SUGGESTIONS DO YOU HAVE.I TRIED TO TAKE MOD.TO LOCAL AUTOZONE CAUSE THEY DO TESTING BUT THEY DONT HAVE THE TESTDER ANYMORE.....THANK YOU PETE

Answer
There is a step by step procedure in the workshop manual that you can do at home with a regular multimeter.  You can buy a manual from Rovers North or Atlantic British online.  

You may need a whole distributor or you may have a power problem.  Those are pretty much the possibilities