OEM 2008 Ford F-350 Super Duty Throttle Body

2008 Ford F-350 Super Duty Throttle Body Parts Q&A

• Q: How to service and repair the throttle body on 2008 Ford F-350 Super Duty?

  A: The throttle body servicing process should begin with safety measures by keeping fuel-related components away from smoking or open flames because highly flammable mixtures exist. Start the process by taking off the air cleaner outlet tube and unplug the crankcase vent tube quick connect coupling from the air cleaner outlet pipe-to-throttle body (TB) adapter before disconnecting the vacuum hose and the wiring harness retainer attached to the adapter. After separating the four air cleaner outlet pipe-to-TB adapter bolts you can remove and separate the adapter piece. You must disconnect the electronic throttle control electrical connector along with the throttle position (TP) sensor electrical connector before removing the four bolts securing the TB assembly and discarding the TB O-ring seal. A new O-ring seal should be used when installing the TB while the four bolts require a two-step tightening process starting at 9 Nm (80 lb-in) and continuing until they reach 90 degrees (1/4 turn). After reattaching the TP sensor and electronic throttle control electrical connectors you should reinstall the air cleaner outlet pipe-to-TB adapter by tightly securing its four bolts at 10 Nm (89 lb-in). Wind up the installation by reconnecting the wiring harness retainer with the vacuum hose alongside the crankcase vent tube quick connect coupling and returning the air cleaner outlet tube.