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Is there a way to test the Throttle Position Sensor?

(2000 Chevrolet Blazer)
in Lester, WV on July 08, 2013
My Blazer shifts hard into third gear. Is there a way to test the Throttle Position Sensor or the Transmission control solenoid before replacement?
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Popular Answer
on July 08, 2013
Scanner needed, TPS knows nothing about which gear it's in or shifting into, although it will affect ALL gears and shifts!! Again scanner needed to check trans module!
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