Question about 1998 Cadillac DeVille

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My sister has a 98 STS and has had trouble with it dying on her. She took it to a mechanic and was told it's a bad EGR valve and was gonna cost her $500 to fix. I found the part for $150 and my son and I are going to attempt to change it ourselves. Do we need to reset the computer after the new valve is installed and if so, how do we do that? Is it a very involved job or require any special tools?

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It is not hard. It is located underneath the spark plug wire cover near the rear bank of the engine. You will have to move the spark plug wire cover, you
don't have to completely take it off. Just lift it up and lay it sideways on top of the engine. To clean the valve, simply spray carborator cleaner on and in the valve and wipe the dirt off with a cloth. Be very careful not to get it into
the canister, as the carb cleaner is a very powerful deturgent that will eat away the insulation on the windings in the sensor. I would try cleaning the EGR valve first. They can be cleaned for less than five dollars. :) PLEASE RATE THIS. JAMES BOOTH. Hope this helps.

Posted on May 21, 2011

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