blazer hesatate if I give it too much gas
 

Bought it 3 months ago and I've done new shocks, pitmen idler arms ,cat and muffler , fuel filter ,fuel pump ,checked for vaccume leaks with a whole can of break cleaner found two fixed them (money pit so far ) ... I'm throwing a evap code but I don't know what else to check shifts great idles great starts great but ......say I floor it from a stop sign if feels like it bogs down and gets crap for power and then 2-3 seconds in it has power ...or I'm pulling out of a parking spot and even give it half throttle it feels like it does it but corrects its self faster than when I floor it ...PLEASE IM OPEN FOR ANY SUGGESTIONS

Try the MAF sensor, that would be my first thought. Otherwise maybe check the plugs, wires & distributor.

O do u know if I can pop the maf off and take it to auto zone

I have no idea, sorry. I had the luxury of 2 running trucks and 1 parts truck so I just swapped it out to confirm it was the MAF.

OK thanks for ur help ....I'll still post when I get it fixed just for when any one else has this problem even if I gotta go pay 100 bucks for diagnostic

your local parts store sell cans of MAF sensor cleaner, cheap easy. Good luck

misfireing 99 LS blazer
 

I feel a misfire every now and then (or what I think to be a misfire ) but no CHECK ENGINE LIGHT is that possible ?

Ok Thanks

Check the MAF sensor and clean it.

Is the throttle body dirty black inside? Trying cleaning it.

Use specific cleaner for the MAF sensor and the Throttle body. They have their own DIFFERENT cleaners.

Yup, had that today and changed the ICM and it fixed that. Do not buy aftermarket on these. I tried that and they just don't work as well. I just went to a salvage yard and bought 3 of them and had them tested at O'reillys.

Take your ICM to have it checked at O'reillys for free. You're going to need to take it off.

Also, check the stuff you were advised in your other thread.