GMC chervolet camaro 1999 Service Manual page 839

6-56 Engine Mechanical - 3.8 L
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Engine
31. Remove the fuel rail nuts (1).
Important: Olean any dirt out of the injector bores
with compressed air. (
32. Remove the fuel rail (2) from the upper intake
manifold.
33. Remove the throttle body bolt (1) and nuts (2).
34. Remove the throttle body (3) and gasket (4).
(
35. Remove the upper intake manifold bolts (1, 3, 4).
36. Remove the upper intake manifold (2).
(