Neighbor has a 94 v6 blazer they replaced fuel filter, injector, regulator and the pump pressure is good. If it sits over night it won't start. If you spray a little starter fluid in it starts up and will start all day, but once it sits for an extended period of time it won't. Any ideas?
LE61T PTE6262 Powered 
Fuel pump is on it's last leg. Trust me......
sounds like it is not holding pressure after it sits too long.
FU Tuning
A lot of fuel pumps work or they don't. Gm's will a lot of times just work when they want to right before they go out completely. Give it a week or so it won't start at all.
thats what we thought. but just wanted another opinion
LE61T PTE6262 Powered
Yep fuel pump, my s10 did the same thing.
