I have a 99 ford e 150 it gets gas and fire but wont start

try this link... Troubleshooting Car That Won Start dummies .or this one... Problem 5 Engine Cranks But won Start

See if your getting spark,If not its probably the crank or cam sensor.

need more info is it getting fire getting gas remove he air filter and drop some gas down the carb if it starts then it is in the fuelsystem if not check your plugs that they aer fireing rember gas fire timeing and compreshion

sounds like the fuel pump thats how they go try bangging on the gas tank it may have a rust buld up

check fuel pump filter

Is there any problem with it as well besides it wont crack back again?

i had a van do this same thing to a tee turned out to be a broken key pin in the harmonic balencer causing the timing to ****** replaced balencer and ran like a dream there is a crank sensor grid on the balencer when the key pin broke it trew the timing off

Hi,
Since you're sure that you are getting gas and fire and timing is right... (also check firing order), has anything been done recently that could help you locate the problem? Such as removed distributor (could be 180 degrees out)? New plug wires (maybe crossed)?
All else I could recommend is checking cylinder compression (In case the valves are the problem)... The engine timing chain could need replacing...
Hope this helps... Good luck!

check your eec wires on driver side under hood for shorts

def sounds like a timing issue