OEM 2004 Buick Regal Throttle Body

2004 Buick Regal Throttle Body Parts and Q&A

• Q: How to replace the throttle body assembly on 2004 Buick Regal?

  A: Begin with partial draining of the cooling system in order to replace the Throttle Body assembly. Leave the fuel injector sight shield and intake air cleaner duct. Remove the idle air control (IAC), throttle position (TP), and mass air flow (MAF) sensor electrical connectors. Next, take off the accelerator controls cable bracket and take apart the electrical wiring harness from the accelerator controls cable bracket. Pull off the vacuum hoses from the Throttle Body, then remove Throttle Body support bracket bolts and the support bracket. Remove the throttle-body nuts and lift off the Throttle Body assembly. Clean out the surfaces of the gasket effectively without the use of solvents or sharp tools that will cause damage. For installation, set a new gasket and then tighten the Throttle Body assembly using Throttle Body nuts of 10 n.m (89 lb in). Reattach the Throttle Body support bracket and bolt it up to 16 n.m (12 lb ft). Reconnect vacuum hoses, accelerator control cable bracket, and electrical wiring harness back to the accelerator controls bracket. Connect the maf sensor, tp sensor, and nice valve electrical connectors, reinstall the air cleaner intake duct + the fuel injector sight shield. Finally, fill the cooling system.