How to use Sea Foam Spray in a Chevy 5.3 engine [SOLVED]

I have a 2007 Chevy with a 5.3 engine and 112,000 miles. The engine has port injection. Where should I apply Sea Foam Spray? Is this the same place as a GDI engine or different?


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Jim D.
Jim D.
4 years ago

Love the question Jared, thank you! Regardless of whether a gasoline engine is port-injection or GDI (gasoline direct injection), how and where you apply Sea Foam Spray is exactly the same: directly in front of the throttle plate/throttle valve!  All Chevy 5.3L throttle bodies, port or GDI, are very straightforward and easy to access!