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What are the symptoms of a bad throttle?

(2002 Chevrolet Trailblazer)
in Collierville, TN on October 29, 2012
Whitout warning, my '02 trailblazer showed a "check engine" light as well as a "reduced speed" light....the car will not rev up above idle, but I ran it for enough to get to repair shop. The repair shop just called to say I needed a new throttle body. does this sound right for the symptoms I just described?
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Popular Answer
of Greg's Orange Auto on October 29, 2012
yes it does most likely the throttle body electronics has gone bad
on October 29, 2012
actually ANYTHING would sound right...bad transmission solenoid, stuck P/S switch, low vacuum reading, lost cam or crank synchronization, low charging voltage, take your pick...or add to the list.
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