Intake Plenum - Bolt Torque Revision

91pontiac03

Bulletin Number: 91-6-21
Reference Number: 116501
Publish Date: 2/91


Subject: SERVICE/MANUAL UPDATE - SECTION 6E3- C2-DRIVEABILITY AND EMISSIONS REVISED INTAKE PLENUM BOLT TORQUE

Models
Affected: 1991 6000, SUNBIRD AND GRAND PRIX MODELS WITH 3.1L, VIN T

Figure 1:

This bulletin updates the intake plenum bolt torque specification for the 1991 3.1L (VIN T) engines used in front wheel drive applications. The current specification, found on pages 6E3-C2-9 and 6E3-C2-18 in DRIVEABILITY AND EMISSIONS (Section 6E3-C2), "Fuel Metering System," of the Service Manual is incorrect. The correct intake plenum bolt torque is 10.0 N-m (88 lb.in.). The intake plenum is shown in Figure 1.