Throttle Body Install

1. Disconnect negative battery cable.
2. Remove the 2 10mm Bolts that hold the resonator to the cam cover.  Remove the S-tube from the resonator by loosening the hose clamps that attach the tube to the resonator body.
   • Figure #1
3. Remove the throttle shield.  This is done by pushing up on the 2 tab heads with a small screwdriver and then pulling the tab out with pliers.  Disconnect all vacuum hoses and sensor wires.
   • Figure #2
4. Remove the 4 10mm bolts that attach the throttle body to the intake manifold.  TIP: the 4 bolts are not the same length.  You can arrange them on a sheet of paper (by location - see Figure 3) to keep them straight.
   • Figure #3
5. Lift the throttle body up slightly off of the manifold.  Disconnect the throttle (and cruise control if so equipped) cables.
   • Figure #4
   TIP: to provide slack in the cables, open the throttle blade and insert the handle of a small screwdriver into the throttle bore.  When you release the blade, the screwdriver will hold the throttle arm (bellcrank) back enough to keep the cables loose.
   1. To remove the throttle cable,  pull it straight up out of the bellcrank slot retainer until it is only being held by the cable barrel at the end of the bellcrank.  Then push the cable barrel to the side to free the cable.
      • Figure #5
      • Figure #6
   2. To remove the cruise control cable, simply push the cable end forward on the bellcrank.  The cable end has an opening that should 'pop' off the bellcrank stud.
   3. Pull the throttle body away from the engine.
6. Depending on your application, your new throttle body may need to have its Throttle Position Sensor (TPS) unit replaced with the original one from your car.  If so, remove the TPS by unscrewing the 2 T-20 Torx screws on the throttle body.
   • Figure #7
   • Figure #8
7. Reassembly is the reverse of removal.  Make sure to tighten the throttle body bolts in a crosswise pattern and use no more than 16 lb/ft or torque on them.  The brass inserts in the intake manifold are notorious for stripping out when over tightened.  Also, get in the habit of checking these bolts often.

• 10mm Socket
• Slot Screwdriver
• Pliers
• T-20 Torx Driver

• Trevor Corbett
• Visit The Hammerspeed Website

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