My blazer boggs when given gas, NO POWER

Hi, Recommend you clean or change the radiator thermostat this should solve the problem. Please leave me feedback thanks, Malcolm Campbell.

bogging down no power

part of the efi system failing
fuel
spark plugs
timing


automatic tranny
check oil level
if it was a sensor or shift solenoid
the check engine light would be on

engine temp sensor or its connector is bad.

Idle air control valve. And/or gunked up throttle body, pcv port at throttle where mating to intake manifold.

check your fuel pressure sensor, that is located on your fuel rail. it would have a vacum hose to the top of it. cause it would cause it to give it plenty of gas upon start up (like a choke) but fails to stop feeding it so much fuel once it warms all the way up. just a suggestion.

2 things to try-
first- change fuel filter(maybe this- is cheap)

second-more likely given what you said- partial melted catalytic converter-
when it warms up- passage expands enough to let it run a little

before you spend anymore have it hooked up to a real time engine analyser like a bdm pro, or a snapon scanner, take it for a drive and snapshoot scanner when the problem arises, could be a sensor like tps or an actuator, but will not register a code, just a flag

try having the catalatic converter on the exaust tested it might be clogged

does itdo it all the time or just when you first start it up

Thermostats come in different heat opening temps. Try one that opens at a higher temp.