Throttle Body Chevrolet Uplander 3.5L 2005-2009 Location and Replacement

Searching for the exact location of the Electronic Throttle Body assembly on a 2005–2009 Chevrolet Uplander 3.5L? In this video, I focus entirely on pointing out its precise position along the engine’s air intake induction system, saving you the major headache of hunting around blindly through a crowded engine compartment or unbolting the wrong components.

If you are gearing up for a DIY throttle body cleaning, replacing a failed unit, or troubleshooting an accelerator pedal response issue on your Chevy Uplander minivan, getting a clear visual on the exact layout beforehand is half the battle. Knowing precisely where the throttle body lives allows you to map out your approach under the cowl, see how the air ducting, coolant lines, and electrical harnesses connect, saves you valuable time, and keeps you from getting frustrated before you even begin working.

⚠️ Symptoms of a Dirty or Faulty Throttle Body:

You are likely inspecting or searching for this component if your 3.5L V6 engine is showing any of these common air management, electronic throttle control, or drivability failure signs:

• An active Check Engine Light or a “Reduced Engine Power” message displaying on your driver information center
• Active diagnostic trouble codes related to the throttle position sensor or actuator circuit (commonly throwing codes like P0121, P0221, or P2135)
• A rough, surging, or unstable engine idle that fluctuates up and down erratically when stopped at a red light
• Stumbling, hesitation, or a delayed engine response when you press down on the gas pedal to accelerate
• The engine stalling out completely when coming to a stop or while running the air conditioning system

🛠️ Safety First!

Working around automotive induction systems, electronic controls, and cooling lines requires extreme caution. Please prioritize your safety before performing any hands-on inspection or work. Always disconnect the negative battery cable first to protect the vehicle’s sensitive computer modules and prevent the electronic throttle blade from cycling unexpectedly. Never stick your fingers inside the throttle body bore while the electrical connector is attached, as the internal motor operates with enough force to cause severe injury. Wear high-quality safety glasses and durable mechanic gloves to protect your eyes and hands from sharp hose clamps, tight engine spaces, and hot engine grime. Stay alert, be attentive, and keep your workspace safe!

💬 Expert Help in the Comments Below!

I am an experienced mechanic with years of professional field experience in vehicle diagnostics and repairs. If you are dealing with a stubborn “Reduced Engine Power” warning, need advice on performing the throttle position relearn procedure, or have questions about your project, leave a comment below! Drop your questions in the comments section, and I will gladly help you figure out your vehicle’s breakdown.