99 Honda Accord EX V6 Cranks but won't start
 

I have had this problem with this car for about 2 months now. The car would sometimes crank but not start. However this time I haven't been able to get it started in a few days. It cranks strong and sounds good but doesnt start up. I checked the air filter and it was ok. It has a full tank of gas. The serpentine belt turns when cranking.. What else can I possibly do to find out and or fix the issue?
Thanks in advance

Turn keyswitch to On and listen carefully. You should hear the fuel pump in the fuel tank buzz for 2-3 secs and go off. If necessary get someone to remove fuel cap and listen to confirm whether it's running or not when keyswitch is first turned to On.

If no sound, the fuel pump is not being energized by the main fuel relay. Usual fix is a new relay. Autozone online manual has diagnostics to confirm Main Fuel Relay is the issue.

I looked but did not see where the relay is located. It may be near the under-dash fuse/relay panel. It is about 2x2x1 inches size and usually has a gray case. Most are Mitsuba relays.

If you hear the fuel pump every time, then fuel supply is probably not the problem and ignition is more likely. Post back for next diagnostic step.

good luck

good luck

main relay aka main fuel relay
 

when mine would not start I could tap on the main relay under the dash and it would start...got tired of doing that and just broke down and got a new relay...bout 60 bucks at honda dealer