OEM 2003 Chevrolet Impala Throttle Body

2003 Chevrolet Impala Throttle Body Parts Questions & Experts Answers

• Q: How to service and repair the Throttle Body on 2003 Chevrolet Impala?

  A: Repairing and servicing the Throttle Body requires the first step to be removal of the air cleaner intake duct. Check the surfaces of the throttle valve by opening it while you review the Throttle Body bore and throttle valve plate for buildup. The Throttle Body bore and throttle valve plate need cleaning using gm top engine cleaner with part number 1052626 (Canadian P/N 993026) or an equivalent product on a clean shop towel. Immersion cleaners and strong solvents must never contact assemblies that incorporate throttle position (TP) sensor and idle air control (IAC) valve and sealed throttle shaft bearings because damage to electric components and sensors and o-rings along with solvents' degradation of non-serviceable throttle shaft bearing grease may occur. The use of wire brushes or scrapers should be avoided because they can damage Throttle Body components while solvent cleaners containing methyl ethyl ketone threaten to damage unnecessary components. Disassemble the Throttle Body to clean it when deposits are too thick; use a parts cleaning brush that remains dry of all solvents. Reinstall the air cleaner intake duct following Throttle Body clean up and subsequent reassembly.