99 grandam gt fuse box has been getting wet due to sunroofdrain hose now car wont start not getting fuel an when u turn key off, u hear an electronic sound from rear of car for 4 or5 seconds. i am hoping it is the fuse but would i hear the sound if the fuse was blown. how do i reset the fuel relay

Is there spark coming from plugs . Electronic ignition? Check fuse box for blown fuses .
Pull a wire out from spark plug and place it near the plug. Start engine while someone else watches if there is spark going ( do not handle wire when doing this ) if new pump it has to be primed before use .

Well, there are several basics your engine needs to start: Spark, fuel, compression, and correct valve timing. I am going to assume on good faith that your GT has the 3.4 liter V6. Here are a couple basics on checking fuel and spark:
GM usually puts a schraeder valve (looks like a tire air valve) on the fuel rail. This is where you connect a fuel pressure gauge to test the fuel pressure. It should be 52-59 PSI when you turn the key to run.
If your fuel pressure is good, remove a spark plug wire from one of the front 3 spark plugs. If you have a spark tester, connect it to the removed plug wire. If you don't have a spark tester, remove the spark plug. Plug the removed spark plug or tester into the plug wire. Touch the metal threads of the plug or tester to a good solid metal part of the engine using gloves or non-conducting (plastic) pliers. Have someone try to start the engine. Watch the gap at the end of the spark plug. You should see a bright blue/white spark and hear it snap every time it fires. If you don't, there may not be any spark getting to the engine. Diagnosis of the problem can be far trickier from here on out. You will need to be able to diagnose electrical problems in the fuel/ignition system to find the root cause of no fuel/no spark.

If you cannot hear the fuel pump run in the tank when you turn the key to run, try lightly rapping the bottom of the fuel tank with a hammer turned to its side (don't put a hole in your fuel tank!) while someone cranks the engine over. If the engine starts, most likely cause is a failed fuel pump. Don't expect the car to keep starting on a regular basis if it does start by hitting the tank. The fuel pump will need to be replaced.

Check your fuses. also check the fuel pump fuse if blown the car will not start. If the car turnes over but wont start this the problem ok. it could also be the fuel pump if it's electronic and u are in a quiet area and turn the key in to the on position u should hear the Pump getting power if u dont then the Fuel pump is not working ..Hope this Help's

Most likely the ignition coil assembly, in some cases the ignition module is faulty.

Fuel pump, fuel pump fuse, vacuum hose loose. Start with the simple things first. If you turn the key to the on position and you hear a slight humming sound that's the fuel pump sending fuel to the injectors. Means the pump is ok. Then you would check the fuel injector(s) to see if they are putting out fuel. If so look for loose,, broken, or cracked vacuum hoses. Also, check ignition fuse(s) under the hood.Hope this helps.
F >> FUEL
A >> AIR
S >> SPARK
T >> TIMING
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F >> Fuel
A >> Air
S >> Spark
T >> Timing
Have you checked to see if you're getting fuel? Bad injector
Bad Coil Pack(s)?
Are you getting a spark from your spark plugs?
Checked vacuum hoses?
Hope this helps

REMOVE FUEL PUMP RELAY.REPLACE FUSE IF STILL BLOWS SHORT IN PCM TO IGNITION CIRCUIT.IF FUSE DONT BLOW I AM LOOKING AT A BAD FUEL PUMP RELAY OR FAULTY FUEL PUMP.

if you are not hearing the pump turn on there's a good chance that its the fuel pump most gm's have a faulty wiring on the fuel pump harness id check the relay and wiring if theirs power to the pump but not crank that would be it id get a gm pump not a carter better to use oem

I CHANGE CAM AND CRANK SENSOR,FUEL PUMP,COMPUTER BRAIN BOX AND COIL PACK STILL GETTING NO FIRE UNLESS I JUMP A FIRE WIRE FROM BATTERY

you have a wire gounding out somewhere. Take out the dam# stereo and get with the times and just get a MP3 player.