Where is the egr valve in a buick le sabre located?

The EGR Valve on this 3.8 L engine should be in front of the throttle body on the drivers side of the engine just to the right of the front valve cover. If you locate where the intake tube/duct attaches to the throttle body and then move just a few inches toward the front of the car it should sit right in that spot. It will have two bolts attaching it to the intake/tube. Hope you find it!!

Under hood, center, rear engine area, mounted top rear driver side of engine

http://www.autozone.com/autozone/catalog/parts/partsShelf.jsp?categoryDisplayName=External+Engine&fromType=parts&fromString=search&parentId=cat30063&currentPage=1&filterByKeyWord=egr+valve&isSearchByPartNumber=false&navValue=15300214&categoryNValue=15399999&fromWhere=&itemId=prod61728&displayName=EGR+Valve&searchText=egr+valve Click that link and you can see a picture of what it is you are looking for. Hope this helps. Thanks for rating my response and for using FixYa!

EGR is located beside the brake fluid reservoir and is over the top rt. rear corner of the engine.
Remember to try to clean the pipes out.into the EGR or replacement of this expensive part will be a waste of dollars.