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Home >> Chevrolet >> 2017 >> Express 2500 LS, 2.8L Eng VIN 1 >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 2.8L (LWN) Diesel - Repair Instructions >> Repair Instructions >> Throttle Body Assembly Replacement

Throttle Body Assembly Replacement

Fig 1: Throttle Body Assembly
GM3355408Courtesy of GENERAL MOTORS COMPANY
Callout Component Name

Preliminary Procedures

  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (Single Battery) or Battery Negative Cable Disconnection and Connection (Dual Battery) .
  2. Disconnect the charge air cooler outlet duct from the throttle body. Refer to Charge Air Cooler Outlet Air Hose Replacement 
1 Throttle Body Bolt [4x]
CAUTION:

Refer to Fastener Caution .


tighten 
11 N.m. (97 lb in)
2 Throttle Body Assembly

Procedure

  1. Disconnect the throttle body electrical connector.
  2. Using a scan tool, perform the idle air control reset function.
3 Throttle Body Gasket
NOTE:

The throttle body gasket is one time use. A NEW gasket must installed whenever it is removed.