ANSWERS: 2
  • cant reset it. you have to replace it. alldata or local parts store can give you a diagram of the wiring and location. easy fix.
  • If it is a Grand Marquis the car is a Mercury.The EGR valve usually does not go bad..most of the time the EGR solenoid is bad..You can purchase at Autozone for around $35.00..To test the EGR itself cut a short lenght of vacuum hose ( same size that's on the top of EGR) remove the hose that's on the valve and replace with Your cut piece..while engine is running suck real hard on the hose..if engine starts to stall the EGR vavle is good..

Copyright 2023, Wired Ivy, LLC

Answerbag | Terms of Service | Privacy Policy