Question about 1991 Chevrolet S-10 Blazer
Will run as long as the throttle is open half way or more if you close throttle engine will spit, sputter and die. Have changed cap & rotor, plugs, and rebuilt fuel pressure regulator. Can't find any vacum leaks.
EGR valve is either faulty or most likely has a piece of carbon keeping it stuck open, causing your engine to run very rich (or lean I can't remember) and will not idle unless you keep your foot on the gas (and often the brake at the same time). Remove (you may need to replace gasket...easy to break) and see if you can dislodge the chunk or replace if you do not see any obstruction...
Posted on May 16, 2009
Try your coolant sensor i had the same problem and it was that
Posted on Mar 21, 2009
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Posted on Jan 02, 2017
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