I drive a 2000 blazer 4x4, automatic tranny and it has started having a serious lag in power. I changed out the fuel filter, put in a new EGR valve and it is still lagging at times, usually when it is cold. I really don't know what to try next. Anyone have any ideas?

 

my 95 was having a serious lag also. I tried egr and fuel filter, with no result, also. Finally I changed the fuel injection spider and that woke it right up.

 

thanks, I will have to look into that for sure. I am just getting so sick of the lag, it annoys me so much.