first off I need to replace the fuel filter...
but mainly when I just start up and go to take off accelerating normally, and gradually even to like 25 miles an hour
it's just nope, revs up to almost 3500-4000rpms and it should be accelerating accordingly but I wont go faster than 12-15mph...

maybe fuel pump? i dunno
never experienced it before...

and on a side note, when going to pass or actually having to accelerate i don't know if its a typical blazer thing for there to be so much lag in acceleration, rpms go but mphs dont.

I wish I could drive a perfect blazer to feel the difference

sorry for the book

 

Are you saying that you are at 3500 rpm to go 25mph? If so, then your problem is your transmission. Also what year?

 

i might have been exaggerating about how high it's reving...the engine just sounds like it's blowing really hard when accelerating, but at this point I honestly wanna say its the fuel pump going bad..

cuz now it just kinda sputters, but only after it's sat for a bit, I can't tell if it's bad when accelerating on the highway, but like after 50mph it just kinda dogs it.

its a 2000

 

https://blazerforum.com/forum/tech-articles-diy-29/96-fuel-system-diagnosis-23038/
That should help ya out. Do a fuel pressure and leakdown test

 

I had a similar problem with crazy hesitation under acceleration and I assumed it was fuel related. I played parts roulette and replaced the pump, filter, MAF, EGR, TPS, cap/rotor, plugs, wires... and finally it turned out to be the coil pack. GOOD LUCK!

 

I had the same problem with my 95. It ended up being a weak ignition coil. For some reason the MSD coil was cheaper than the stock one so I went with it instead.

 

I had the same issue on my 98. I changed the MAF sensor and it went away immediately. Good Luck.