OEM 2003 Chevrolet Astro Throttle Body

2003 Chevrolet Astro Throttle Body Parts Questions & Experts Answers

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

  A: Start your Throttle Body repair and servicing work by taking out the air cleaner outlet duct. Thoroughly inspect both the Throttle Body bore and throttle valve plate and open the throttle valve to completely visualize all surfaces. Use gm top engine cleaner (P/N 1052626) or a similar product to clean the Throttle Body bore and throttle valve plate with a clean shop towel. When deposits exceed acceptable levels you should disassemble the Throttle Body before cleaning all parts using a brush that avoids contact with cleaning solvents. The installation of Throttle Body follows cleaning procedures. Devices containing throttle position (TP) sensors and idle air control (IAC) valves and sealed throttle shaft bearings must be avoided from immersion cleaners and strong solvents because such chemicals could damage electrical parts, seals, and o-rings as well as deteriorate non-serviceable throttle shaft bearing grease. Wires scrapers must be avoided because they will destroy Throttle Body parts while methyl ethyl ketone cleaners must be kept from use because they potentially cause unnecessary damage to components. Close the procedure by putting back the duct that connects to the air cleaner.