Express 1500 AWD V8-5.3L VIN T (2004)
NOTE: In order to prevent damage to the sealing surfaces, carefully use sharp tools in cleaning the old gasket from the aluminum surfaces.
IMPORTANT:
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DO NOT soak the throttle body in a cold immersion type cleaner. The throttle plate has a factory applied sealing compound. The DAG material is
applied to the outside edge of the plate and the throttle bore to prevent air bypass at closed throttle. Strong solvents or brushing removes the
material. To clean the throttle body following disassembly, use a spray type cleaner such as GM X-66A or GM P/N 1052626. Use a shop towel to
remove heavy deposits.
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The TP sensor and the IAC valve are electrical components, and should NOT come in contact with solvent or cleaner in order to avoid damage.
1. Clean the gasket sealing surfaces.
INSTALLATION PROCEDURE
1. Install the throttle body with a new gasket.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the throttle body attaching nuts.
Tighten
Tighten the nuts to 10 N.m (89 lb in).
3. Connect the coolant hose to the throttle body.
