Need the GURUs - Starting issues and gas smell

[jsbihn]

Ed, and the other Gurus'

Ok let me ask you this....

I am now noticing that the gas smell is still present at the rear of the truck even after the truck is turned off for some time. Again no signs of a gas leak, so I am curious if maybe the reason why I am having a starting issue is because it is a sealed system and somehow the seal somewhere is bad and letting out the gas vapor smell while also not allowing the system to pressurize until 2-3 cycles of the key

(I havent gotten a fuel pressure gauge yet, but I am asking because this just came to mind as the possible problem)

Also I saw where to hook up to check the FPR, but where is it located to replace it on our rigs?