My 2000 X with 125k miles on it slowly started to die middle December and would and would not start sometimes now it's just stuck in our driveway and won't start at all. I've tried jumping it first, then I began digging deeper. Fuel filter is good, fuel pump works better then ever and I fixed two blown fuses under the dash and it still won't start. It cranks but just won't start. Any ideas on what else to check. I know they say you should get new spark plugs at 100k and I doubt they have been replaced, I bought the truck used.

 

So it cranks and won't turn over?

When you bought it, did you do a whole maintenance on it? Oil, air filter, coolant, trans fluid?
You said not the spark plugs, but all of them go at once is not likely.

If all those were done, there is the CPS. IAC clean?

These are just a couple of things off the top of my head I can think of. Others could chime in and provide additional suggestions.

 

Are you sure the pump is fine - what is the fuel pressure at the test port?
Are you getting spark at the plugs while cranking - try spraying starter fluid.
What were the blown fuses - are there any others?
I say change spark plugs/boots/springs at 50k - I had one blow at 108K.
There are sensors the PCM gets data from to start the engine - crankshaft position, camshaft position, throttle position, MAF - are they all working?