My dad is trying to clean a throuttle body on his 205 gmc envoy and he whants to know how to do it.
Piece of cake. Turn off all HVAC first, then unhook the battery. Take the plastic resonator off the top of engine, remove the air ducting that goes to throttle body. Unhook the electrical connector on top of throttle body, then remove the 4 bolts that hold it in. Use a product like Seafoam spray (or sensor safe spray) to clean with rag or nylon brush to clean BOTH sides. Reinstall in reverse order. Most important part is HVAC off and Battery disconnected for the CPU to relearn the newly cleaned throttle body. By the way, reuse the hard plastic O-ring in there behind the throttle body, no need to get a new one unless broken.
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