i cant figure this truck out.i've had it tested n changed the part,parts they said were bad..full tune up,new fuel pump,wires,cap,rotor,water pump,battery,terminals,i cleaned the throtle body new air filter.what could be causing it to dog out when trying to accelerate i had the motor mounts replaced also

please help me ty matt t.

hi y'all, thanks to this chevy forum i was able to figure out what was wrong with my blazer....it ended up being the mass air flow and fuel pressure regulator.....i saved alot of money just from reading the posts on here.....

Glad you got it fixed using the information in other threads. I must have missed your initial post. Do try to post your vehicle information if/when you post another thread requesting help. A lot of people don't respond when there isn't any vehicle information.

i will n thanks again for the info..saved my wife n i quite a few bucks just by reading....awesome

I don't see a fuel filter in ur list of tuneup stuff, did u replace it? Sounds like u either have a plugged fuel filter or a bad/clogged cat converter..

hi, oops...i changed the fuel pump,fuel filter,plugs,wires,cap,rotor,fuel pressure regulator,mass air flow,all new vacuum hoses,plentum gaskets,water pump,thermostat,battery,terminals...so far our daughter is happy...she named it till bear hehe.....there all new parts no junk yard items...