OEM 2000 GMC Savana 3500 Throttle Body

2000 GMC Savana 3500 Parts Questions & Experts Answers

• Q: How should you clean the throttle body and what precautions should you take on 2000 GMC Savana 3500?

  A: You should steer clear of immersion cleaners and strong solvents when cleaning the Throttle Body because these chemicals can damage the throttle position (TP) sensor and idle air control (IAC) valve along with sealed throttle shaft bearings while simultaneously hurting electric elements and destroying the non-serviceable bearing grease. Wire brushes and scrapers should not be used for cleaning purposes because cleaners using methyl ethyl ketone must be avoided. Use gm top engine cleaner (P/N 1052626) and either the ac-delco carburetor tune-up conditioner (P/N X66P) or an equivalent product to clean the Throttle Body bore alongside the throttle plate using a clean shop towel. Cleaning the Throttle Body requires disassembly when excessive deposits appear but a brush with parts cleaner should never be submerged in solvent. The actual Throttle Body exhaust section shows a unique 8-digit part identification number that helps determine service and replacement requirements. Before Throttle Body removal start by removing the negative Battery Cable followed by taking off the engine cover and air cleaner outlet duct and cruise control cable and accelerator cable along with the mounting bracket. Separate the iac valve and tp sensor connectors before removing the air cleaner adaptor stud and Throttle Body fasteners and pulling out the Throttle Body assembly. Discard the flange seal at this time. Installation of this component starts by cleaning the seal surface on the Intake Manifold followed by inserting a new flange seal before adding the Throttle Body assembly where you must tighten all fasteners to 25 n.m (18 lb ft) and the air cleaner adaptor stud to 8 n.m (72 lb in). Reinstall the tp sensor and iac valve harness connectors followed by accelerator and cruise control cable installation with their mounting bracket. Maintain proper cable orientation to stop the throttle plate from staying openwide. To finish installation add the air cleaner outlet duct and engine cover and reconnect the negative Battery Cable while testing the accelerator pedal by releasing and depressing it smoothly.