chk engine light is on.autozone quick test said it may be the egr valve on 2004 Chevrolet Impala

not sure where that is located

by in Sterling Heights, MI on July 30, 2012
2 answers 1 comment
ANSWER by on July 30, 2012
it could be the egr or the circuit the valve is located on the top of eng
ANSWER by on July 31, 2012
That is not a common problem on that car. I would take it to an experienced repair shop and have it properly diagnosed. Autozone only "reads" the codes. The problem still needs to be diagnosed.
COMMENT by on August 09, 2012
By coincidence they sell parts to , right? Take both of the other suggestions and get it diagnosed FIRST , before guessing on parts.

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