How much is a throttle body for a Trailblazer?

The average cost for a Chevrolet Trailblazer throttle body replacement is between $395 and $596. Labor costs are estimated between $45 and $57 while parts are priced between $350 and $539. via

What does a throttle body do on a trailblazer?

The throttle body is an air metering device mounted between the air filter and snorkel, and the intake plenum. Within the throttle body is a movable throttle plate whose position controls the amount of air that enters the engine to determine engine speed. via

What does the code p1516 mean? (video)

What is code P2101?

The diagnostic trouble code (DTC) P2101 means that your car's powertrain control module (PCM) has detected a discrepancy between where the throttle is positioned and where it should be positioned. The role of DTCs is to identify issues within a car's engine and to notify you via an engine code. via

How strong is the Vortec 4200?

The Vortec 4200's Racing Career

It produced roughly 600 horsepower at 7,500 rpm and 450 pound-feet of torque at 6,000 rpm, but shared almost no parts with the production engine. via

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