Vacuum Assist

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For vacuum assist system diagnosis, see Fig 1 and Fig 2 .

Fig 1: Vacuum Assist Diagnosis (1 Of 2)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Vacuum Assist Diagnosis (2 Of 2)

Courtesy of GENERAL MOTORS CORP.