ive had this 02 *-10 blazer 4x4 for almost to years...runs good..er ran good up until a week ago when i started it up and it was idling kinda rough..took it for a little drive and it acted like it didnt want to go when i pressed the accelerator and started smelling a rotten egg smell while i was sittin at a light..any ideas on where to start looking for the problem?/??

Rotten eggs....

try


catalytic converter

i thoguht about that but i dont think it would make it idle rough would it? some one else said FPR

if its plugged sure it would..

could be an o2 but i'm thinking cat

rotten eggs 9 times out of 10 will be your cat. i highly doubt its anything to do with the FPR.

well when i push on the gas it acts like its gonna die/stall out...then when i get up to speed and let off its not so rough..until i step on the gas again

flooring it will heat up the cat

letting off your not pushing a much exhaust ..