Hey guys I have a full size 94 blazer 5.7 tbi automatic 4x4. Had an egr code, installed a new egr and selinoid. Truck still stumbles at low rpm but my check engine light has stayed off. Any ideas? Also new fuel filter cap ,rotor ,wires, plugs,PCv valve and air filter. Runs great after 2000rpm. Thanks

 

Did you ever find out what this problem was? My 94 Blazer is doing something similar. I just posted about it. I realize your post is 10 yrs old.

Thanks.,