A 2000 Firebird with a 3.8-liter engine cranking for several seconds before starting could be due to several factors. Possible causes include a weak or failing fuel pump that struggles to build pressure, a clogged fuel filter, or issues with the ignition system, such as worn spark plugs or ignition coils. Additionally, a malfunctioning sensor, like the crankshaft or camshaft position sensor, could also delay the starting process. Diagnosing the issue may require checking fuel pressure, spark, and sensor functionality.
If the engine cranks & cranks & cranks before it starts even though it's warmed up already.
Check for codes(possible cam sensor), check fuel pressure bleed down(possible fuel pump).
crankshaft
The fuse box under the hood. It is the #9 relay and when it starts to go bad there is a delay before engine cranks over.
Give more info on what you have tried.. Go to question/answer # 19 on the Firebird faq's list, "If a 95 firebird starts right up..." Maybe this will help?!
Crankshaft position sensor.
My car starts but it shuts off it says ck engine
If the check engine light is or has illuminated, check for codes.
Sign of fuel pump going bad. Had the same problem. Good luck
check the egr valve,and you emission control system
i would say you have an injector problem. usually a cloged one can cause that.
You need a battery. There's a very small chance it could be something else, but from the symptoms you describe it is more than likely a bad battery.