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periodically hard starting engine

tzuptzup Member Posts: 2
edited March 2014 in Chevrolet
I HAVE A 1993 CHEVY S-10 BLAZER WITH A 4.3
6CYL.WITH 104,000 MILES. AT 103,300 I CLEANED THE
INJECTORS WITH THE 3M KIT THROUGH THE INTAKE
MANIFOLD, AS WELL AS THE GAS ADDITIVE AND THROTTLE
PLATE CLEANER. I ALSO CHANGED PLUGS AND FUEL
FILTER. THE PLUGS LOOKED GOOD. REG MAINT IS ALWAYS
DONE AS WELL AS OIL AT 3,000. AT 103,700 MILES IT
IS NOW BECOMING HARD TO START PERIODICALLY, AND THE
CHECK ENGINE LIGHT WENT ON BREIFLY. I PULLED THE
CODES AND NOTHING WAS STORED BEYOND THE STANDARD
#12. HARD STARTING CAN HAPPEN AT ANY TIME, AND
TEMP. A LOSS OF POWER ALSO SEEMS TO HAVE POPPED UP.
COULD SOMETHING BE LODGED IT A INJECTOR? ANY
IDEAS?

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    poisondartfrogpoisondartfrog Member Posts: 102
    You're in the ballpark... I would check your fuel pump pressure. The pump output may be marginal, and this usually results in a hard start. So all that you may need is a new pump.

    This same problem happened to my brother's '93 Safari last year, and it had 93K miles.
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