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if the code that's comming up is insufficent flow make sure that the opening in the intake where the egr sets ove is not blocked by carbon build up try sticking a piece of wire though the opening if it goes in and doesnt bind up its not clogged (opening goes from egr to tbody opening

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โˆ™ 2011-09-13 12:29:52
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Q: On a 1998 4x4 blazer the service engine light was scanned and came up with egr valve you replaced it and the light came on again what could be wrong?
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