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67ChevyRedneck · 07-07-2008, 11:54 AM

Some GM trucks with the 5.3L had problems with the PCV's causing blow by and smoke at start up. They would also use oil excessively. GM fixed this by coming up with a fixed orifice PCV. I installed one in my truck and excessive oil usage and smoke at start up went away.

www.mightyautoparts.com/pdf/articles/tt122.pdf

You may want to check, your truck may already have one.

I went to a GM dealer and ordered one. It was $8 or so, but you will never had to buy another PCV again (no movable parts to plug up, it's just a shell with a hole drilled in it.)

*This could be your problem*

07-07-2008, 11:54 AM	#2
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Could use a hand.... Some GM trucks with the 5.3L had problems with the PCV's causing blow by and smoke at start up. They would also use oil excessively. GM fixed this by coming up with a fixed orifice PCV. I installed one in my truck and excessive oil usage and smoke at start up went away. www.mightyautoparts.com/pdf/articles/tt122.pdf You may want to check, your truck may already have one. I went to a GM dealer and ordered one. It was $8 or so, but you will never had to buy another PCV again (no movable parts to plug up, it's just a shell with a hole drilled in it.) This could* be your problem* __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! Last edited by 67ChevyRedneck; 07-07-2008 at 11:58 AM.