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How to replace the speed sensor?

(1997 Chevrolet Astro)
in Abington, MA on August 11, 2010
the van only goes 20mph even when your foot is on the gas pedel,
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Popular Answer
Agree with Roy, clogged Cat Converter or insufficient fuel pressure or fuel pump volume!
on August 11, 2010
sounds like a clogged cat converter. go to a shop and have it checked.

Roy
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