I have a 98 tahoe 4x4. I have recently had problems starting my tahoe (only every few days). When it would act up it would crank but not turn over on the first try (like usual). I let it sit for alomost a week and it would just keep cranking but wouldn't start. I replaced the Battery (it was bad). Still the same problem. I hear the fuel pump. Spark plugs and wires about a year old. And I also smell fuel after trying to start. Im thinking the spark is the problem but I dont know all I should check. Any suggestions?

 

did you check the coil for spark

 

sounds like you're not getting fuel to the motor. those were my first thoughts before you even mentioned that you smell fuel...so my next guess is theres a fuel leak somewhere. also check your fuel filter. it should be along the inside of the frame. be careful if your going to check the spark if there is a fuel leak because you might start a fire

might sound stupid but are you almost on E and are you parked on a hill?