The plate position at idle is set by the throttle return control (TRC) screw contacting the throttle lever arm. Do not adjust/tamper with this screw unless instructed to do so by the Powertrain Control/Emissions Diagnosis Manual.
Section 03-04C: Fuel Charging and Controls, 7.5L Engine | 1996 F-250, F-350 and F-Super Duty Vehicles Equipped with 7.5L MFI V-8 Engines Workshop Manual |
The throttle body (9E926) controls airflow to the engine (6007) through a double butterfly-type valve. The throttle position is controlled by a four-bar link, progressive opening, throttle linkage. The throttle body is a single-piece die casting made of aluminum.
Other features of the throttle body include:
A preset stop to locate the wide-open throttle (WOT) position.
A throttle body-mounted throttle position sensor (TP sensor) (9B989).
A sludge-resistant coating applied to the downstream side of the throttle plate and bore area to reduce the plate-to-bore leakage. The coating should NOT be removed or cleaned.
The plate position at idle is set by the throttle return control (TRC) screw contacting the throttle lever arm. Do not adjust/tamper with this screw unless instructed to do so by the Powertrain Control/Emissions Diagnosis Manual.