1986 Chevy Suburban knocks and pings

1986 CHEVROLET SUBURBAN
93,000 MILES • V8 • 4WD • AUTOMATIC
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KWSTINE86
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  • 3 POSTS
my 86 chevy K20 is knocking and pinging and I have never had a problem with it doing this befor on 87 octane I recently rebuilt the carb could it be running to lean or timing advanced to far?
Jun 11, 2010 at 2:54 PM
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