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Actually, I have a 2001, 5.3l engine...replaced the PCV valve today. It is located toward the rear of the engine compartment...on the right...atop the valve covers. It is obscured by its rather large hose. I am pretty sure the Gen III 5.3L engine line has an internal PCV. There is no replacing required.
What else can I help you with?
Where is the pvc valve located on a 2001 suburban 5.3L?
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