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There really is no "EGR solenoid" as such. The EGR valve is a digital electronically-operated assembly consisting of three motors ("solenoids") and three needle valves. It is replaced as needed as a unit (about $250.00). The valve assy is bolted to the intake mount by 2 10mm bolts. If you are getting a DTC (Diagnostic Trouble Code)such as "#3 EGR solenoid fault" it REALLY (generally) means that the very small orifice (port) for the exhaust to enter the intake is clogged up. To Repair: remove the EGR valve assy, spray liberally with INTAKE BODY CLEANER (NOT carb cleaner)and root out with small wire such as coat-hanger wire bent to fit. It will most likely re-clog within 1 year. I know of no permanent repair. Mark,,,Raleigh, NC

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Q: How do you change the EGR solenoid in a 95 Olds Achieva 3.1 V6?
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