2000 Jeep Grand Cherokee Laredo review from North America

My 2000 Jeep Grand Cherokee Laredo won't start... It cranks strong but won't turn over.. I can hear my Fuel Pump kick on from the back of the Vehicle but it won't kick on listeing from the engine compartment??I checked all fuses. I had a tune up a couple of months ago.. My check engine light was on before the tune up and my mechanic said that the tune up corrected the problem the car was codeing out...I've been told to check the ALARM by turning the alarm on and off and also unlocking the car Via the driver door.. This didn't help. And I've noticed my REAR hatch won't stay locked when my alarm is set...I've been told to check the Fuel cut off switch (RESET BUTTON) for my make and year but can't seem to locate it. It might be the crank position sensor to help start my vehicle but why won't my Rear hatch lock now... any help would be greatly appreciated... thanksHey I got spark... My friend says it's probably the crank position sensor... But I've also heard that it might be the ALARM cutting off the FUEL...I've noticed now my rear hatch won't lock when I set my alarm..I've tried disconneting the Negative on the Battery, and unlocking and locking the vehicle by the key in the driver side door.. NO LUCK...thanks..