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International Automotive Technicians Network
Re: 03 Chevy Suburban 5.3 L 53 k miles 8th VIN Z
Posted to Technical Discussion Forum on 8/1/2007

[...trimmed text...]

The intake seemed straight and the fuel trims stay below 10% for the most part. Still get no smoke out or when I propane/carb spray the base of the intake it has no effect on trims.

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