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Remove intake manifold to clean EGR ports?

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Old 02-10-2005, 08:53 PM
Join Date: Jun 2002
Location: Florida
Vehicle: 2000 Ford F-150
Posts: 72
Remove intake manifold to clean EGR ports?

Does the intake manifold have to be removed to clean the egr ports? Engine has 120.000 on it and i am going to have someone do this for me. I already had it done once but this guy has never done a 4.2L Ford. It runs rough when i brake torque it. Already had the plugs and wires replaced and checked for vacuum leaks. Is this carbon thing a problem with the 4.2L? Thanks for any tech help.

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Old 02-12-2005, 08:51 PM
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Join Date: Dec 2004
Location: poquoson virginia
Vehicle: 1981 ford bronco
Posts: 1,080
The upper intake has to be removed. The egr ports are located in every cylinder intake port. They have a 3/16 inch hole in them(that is the size drill bit that I use to clean them out with). Run the bit in the hole BY HAND ONLY! Then blow each hole out with compressed air and reassemble.

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