Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Throttle Body Assembly
The throttle body assembly controls airflow to the engine through a single butterfly-type valve. The throttle position is controlled by multiple-link, progressive opening, throttle linkage. The body is a single piece die casting made of aluminum.
The throttle body assembly has a single bore with an air by-pass channel around the throttle plate. This by-pass channel controls both cold and warm engine idle airflow, regulated by an air by-pass valve assembly mounted directly to the throttle body. The valve assembly is an electro-mechanical device controlled by the EEC. It incorporates a linear actuator which positions a variable area metering valve.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.