General Motors — Throttle Body Assembly Replacement
Repair & overhaul
From a General Motors service manual — check it applies to your exact model before use.
Before you start
- Do not soak the throttle body in cold immersion type cleaner
- TP sensors and TAC motor are electrical components and must NOT come in contact with solvent or cleaner
Procedure
- Disconnect negative battery cable
- Remove flame arrestor
- Disconnect electrical connector from electronic throttle body
- Remove vacuum lines
- Disconnect throttle adjuster to throttle body cable
- Remove throttle body attaching bolts
- Remove throttle body assembly and flange gasket; discard gasket
- Install throttle body assembly with new flange gasket
- Install throttle body attaching bolts; torque to 15 N·m (11 lb.ft.)
- Connect throttle adjuster cable, vacuum lines, electrical connector and flame arrestor
- Connect negative battery cable
Specs & values
- Throttle Body Attaching Screws: 15 N·m (11 lb.ft.)
Source: General Motors service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.