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Great article !!!! Have a question as to trying to clean the carbon gunk in EGR bore in the intake manifold. Just finished doing a minor cleaning operation of the valve itself by using brush and gently scraping carbon deposits & looks pretty good. Can't say the same for area around bore in manifold where valve is seated. Needs to be cleaned but only way I think might work is with very small fabricated crevice tool on vacumn and a small tool to dislodge carbon so vacumn can capture it. Any thoughts from anyone else on this?? Yes, I know ...... hand my mechanic my wallet so he can remove intake manifold to clean it. There has to be a better way to deal with a spot area. Also, NYC .... is there any info out there as to exactly how valve is designed to operate?? This is the first time for me and I could do a better job if I understood the operation of the device. Thanks in advance all !!!!
You can clean some of the intake with a scraper and vacuum, but you won't be able to get a good cleaning of the intake runners. To clean spotless, you would need to remove the intake.
This link will take you to the coffee table books, click on the '03 book. Scroll down to the EGR function.
2004 F350 CC DRW King Ranch
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