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Stalling of vehicle ,Slow pickup speed and bad mpg . lack of power and poor mpg.

(1990 Chevrolet S10 Blazer)
in Caldwell, ID on March 02, 2011
alway the same,popping through carburetor, lack of power on acceleration, slowly pickup speed if I let go of accelerator pedal out slowly. I get poor mpg about 10miles per gallon. are 4.3 bad on gas. thanks
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Popular Answer
on March 02, 2011
FYI - no carburetor here; you have fuel injection. I know what you are saying, though.

I'm wondering if you have a restriction in your exhaust, like with your catalytic converter. I would recommend having your exhaust checked for a restriction.

Either this or you could have a big vacuum leak somewhere at the engine - like an intake manifold gasket, or a vacuum line.
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on March 02, 2011
Hi, My friend and thank you. Anyhow, I checked for a for vacuum leak but not thoroughly . I was getting about 16-18 psig not quite close too normal at idle . I think it should have been 20 psig. I'll check my cat, okay and hopefully that will be the problem. I really thankful for your help. God bless you, man. some other people think an egr is the problem, map , coolant and oxygen sensors and that a little bit of money for a poor man.
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