99 full size 4.3

[Ghetto Fab]

got a 99 silverado with  4.3  2wd  if i drive it every day it runs fine  if i let it set for 3 days it wont start..... wtf could this be??  fuel pump has 60lbs pressure with key on  however when the pump turns off it bleeds pressure to zero    good spark at all cylinders   i have had a evap code once  but that was a while back....WTF??? lol  any help is greatly appreciated
thanks

[J.C.]

bad battery?

[Ghetto Fab]

It cranks good just won't fire

[RIP_K52007]

It just feels left out..

[Ghetto Fab]

I already tried talkin nice lol

[RIP_K52007]

I already tried talkin nice lol

You should know better. Chevys like it rough call it some names and show it a hammer.

[Disturban]

FPR or leaky spider/injectors...common problem.

[Eroq]

FPR or leaky spider/injectors...common problem.

i was gonna say fuel pressure regulator as well.. theyre cheap and would be an easy thing to start with!

[Ghetto Fab]

I don't call 45 bucks cheap lol

[mariozoldos]

my 97 jimmy does the same thing when its low on gas it all most kills the battery... Sits with a full tank fires right up......

got a 99 silverado with  4.3  2wd  if i drive it every day it runs fine  if i let it set for 3 days it wont start..... wtf could this be??  fuel pump has 60lbs pressure with key on  however when the pump turns off it bleeds pressure to zero    good spark at all cylinders   i have had a evap code once  but that was a while back....WTF??? lol  any help is greatly appreciated
thanks

[Ghetto Fab]

3/4 tank in it currently

[Chevy Racer]

FPR or leaky spider/injectors...common problem.

Had a similiar issue with a Jimmy.  Pump takes a minute while cranking to build back up the 60+lbs of pressure to fire it so it takes a while to start it.  Pressure regulator or like in my case a cracked feed line going to the injector under the upper intake plenum are my guess.

[Ghetto Fab]

wel instead of pullin the intake(the last thing i wanted to do) this truck has EATEN caps and rotors for dinner ever since i got it so i thought id replace it since it had been over a year..... fired right up no hesitation.... wtf

[Colorado]

FPR or leaky spider/injectors...common problem.

i was gonna say fuel pressure regulator as well.. theyre cheap and would be an easy thing to start with!

I was thinkin...or a fuel line leak.

[J.C.]

well instead of pullin the intake(the last thing i wanted to do) this truck has EATEN caps and rotors for dinner ever since i got it so i thought id replace it since it had been over a year..... fired right up no hesitation.... wtf

now you should be asking why your truck is so hungry!?

[Ghetto Fab]

Haven't fed her in a while lol

[Crazymays77]

tear it apart and give me the motor problem solved lol

[72 Bogger]

wel instead of pullin the intake(the last thing i wanted to do) this truck has EATEN caps and rotors for dinner ever since i got it so i thought id replace it since it had been over a year..... fired right up no hesitation.... wtf

Was going to sugjest this

[old school truck dude]

If it does it again, try cycling the key off and on several times before you crank it, sounds like it was losin its prime due to a leak such as leakin injector, pinhole in the line, etc