How do you Remove the Throttle Body on a 1999 Buick Park Avenue?

Answer 1

The fuel distribution systems on engines have gone through many changes over the years. Carburetors were used at first, then the manufacturers installed throttle bodies on engines and then came the fuel injectors. Carburetors and throttle bodies have a fuel line running to them, whereas injectors have a fuel rail; several injectors feed off the same rail. The 99 Buick Park Avenue vehicle uses a throttle body mechanism. Always clean the engine compartment with a pressure washer or garden hose to remove oil and dirt that might get into the engine before removing the throttle body. If it is heavily soiled, you may want to use a degreaser.

1. Step 1

   Raise the hood of the Buick and use the 8-mm wrench to loosen the battery cables. Turn the nuts on the battery posts counterclockwise. Once the cable ends are loosened, lift them off by hand.

2. Step 2

   Remove the dust cover shield from the top of the engine by removing its securing screw with the flat-head screwdriver.

3. Step 3

   Disconnect the throttle cable and the cruise control cable, if the vehicle is equipped with these components. Use the needle-nose pliers to squeeze the side of the cable mounts--this allows the cables to slide out of their mounts. Undo the ends from the throttle body.

4. Step 4

   Use the fuel line disconnect tool to disconnect the fuel line from the throttle body.

5. Step 5

   Remove the wire connectors from the throttle body and from the intake tube.

6. Step 6

   Use the flat-head screwdriver to loosen the clamps on the intake tube and remove the tube from the throttle body.

7. Step 7

   Use the 10-mm socket and ratchet to remove the four bolts that attach the throttle body to the intake manifold. Remove the throttle body when it drops.