Intake Manifold Cleaning and Inspection - Upper

WARNING: This page is about a different car, the 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

Remove the accelerator control cable bracket bolts (1, 2) and the nut (3).
Remove the accelerator control cable bracket.

Fig 1: Removing Accelerator Control Cable Bracket & Bolts
Courtesy of GENERAL MOTORS CORP.
Remove the throttle body bolt and stud.
Remove the throttle body.
Remove the throttle body gasket.

Fig 2: Removing Throttle Body, Stud, Bolt & Gasket
Courtesy of GENERAL MOTORS CORP.
Clean the intake manifold gasket surfaces.
Clean the intake manifold bolts and studs.
Inspect the intake manifold mating surfaces for nicks or cracks.
Replace the intake manifold if damaged.

Fig 3: View Of Intake Manifold
Courtesy of GENERAL MOTORS CORP.
Install the throttle body gasket.
Install the throttle body.
NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
Install the throttle body bolt and stud.
Tighten

Tighten the throttle body bolt and stud to 25 N.m (18 lb ft).

Fig 4: Installing Throttle Body, Stud, Bolt & Gasket
Courtesy of GENERAL MOTORS CORP.
Install the accelerator control cable bracket.
Install the accelerator control cable bracket bolts and nut.
Tighten

Tighten the accelerator control cable bracket bolts in sequence (1, 2, 3) to 13 N.m (115 lb in).

Fig 5: Installing Accelerator Control Cable Bracket & Bolts
Courtesy of GENERAL MOTORS CORP.