Look, I'm NOT , by any means, mechanically inclined, so I apologize for this if it's a stupid question.
I have a 93 s-10 Blazer that works rather nicely once I get it started, but for some reason, after sitting overnight ( and only after sitting overnight) the engine has issues turning over. Why? I added fuel injector cleaner yesterday, and today it took a few more tries to turn it. It started w/ the engine just taking a second to turn, which I thought was a matter of it being a 15 year old vehicle, but as days go by, I need to turn the key more times to get it to fire up. What the hell is going on here?

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*Moving to 1st Gen Tech*

If you turn the key to the RUN position and wait until the fuel pump shuts off before moving to the START position, does that allow it to start right away?

How old is the battery?

Have you tested the fuel pressure?

Oh yeah, is this a TBI or CPI motor? The TBI motor will have a round air cleaner on top of the engine, the CPI motor will have a large aluminum plenum with a plastic cover reading VORTEC on it.