EGR Systems
Oldsmobile Achieva
Ford Expedition XLT
1995-2005 Chevy Cavaliers

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


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2015-07-15 21:16:48
2015-07-15 21:16:48

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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Yes, the Diamante has an EGR solenoid. On any Mitsubishi, if the car has an egr valve, it has a solenoid to operate the valve. Just follow the vacuum line from the valve and it will go to the solenoid. There may be another one way valve between the valve and the solenoid, though. The solenoid is electronic.

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