REMOVAL & INSTALLATION
See Figures 1 through 15
Remove the air cleaner.
Perform the fuel system pressure release.
Disconnect the negative battery cable.
Fig. Fig. 1: A common dual point throttle body prior to removal-1990 3.9L engine shown
Fig. Fig. 2: You may wish to clamp the fuel lines to prevent any dripping
Fig. Fig. 3: Disconnect the barrel end of the throttle cable and position it out of the way
Fig. Fig. 4: Remove the return spring from the throttle body-1990 3.9L engine shown
Fig. Fig. 5: Be careful not to lose any small parts such as this washer and retaining clip
Fig. Fig. 6: Remove the transmission kickdown rod link, if equipped-1990 3.9L engine shown
Fig. Fig. 7: Disconnect the fuel hoses and set them aside. If mix-up is possible, tag them first
Fig. Fig. 8: Unbolt the throttle body from the manifold
Fig. Fig. 9: Remove the bolts and set them in a safe place with the other related hardware
Fig. Fig. 10: Remove the throttle body and set it in a clean, safe location
Fig. Fig. 11: Remove the old gasket and discard it
Fig. Fig. 12: Stuff a clean rag into the manifold to prevent the entry of dirt or other foreign material
Fig. Fig. 13: Common V6 engine throttle body components
Fig. Fig. 14: Exploded view of throttle body mounting-V6 engine shown; others similar
Fig. Fig. 15: Common V8 engine throttle body components
Disconnect the vacuum hoses and electrical connectors. Tag as necessary any hoses/connectors to ease installation.
Disconnect the throttle cable and, if so equipped, speed control and kickdown cables/rod.
Remove the return spring, if applicable.
Disconnect the fuel intake and return hoses.
Remove the throttle body mounting bolts and lift the throttle body from the engine.
When installing the throttle body, use a new gasket. Position the throttle body and tighten the mounting screws to 15 ft. lbs. (20 Nm).
Connect the fuel intake and return hoses using new original equipment type clamps.
Install the return spring.
Attach the throttle cable and, if so equipped, attach the kickdown and speed control cables.
Engage the wiring connectors and vacuum hoses.
Install the air cleaner.
Reconnect the negative battery cable.