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How will you know when the egr valve is bad on a 1994 Chevy blazer?
Wiki User
∙ 15y ago
There are several signs, My experience was a engine that ran very rich. My sparkplugs smelled of gas and rough Idle with no real power. The role of the valve is to re-use a portion of your own exaust for better engine performance, fuel economy, and emmisions output. Engine Rough idle and poor acceleration can be caused by a faulty EGR valve.
Wiki User
∙ 15y ago
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