1995 Mercury Grand Marquis mileage: 75,000. Check engine light code 332? The EGR valve not opening. I had this problem on another Mercury Marquis and dealer cleaned EGR with spray without removing and changed vacuum regulator. How can I tell if it is the vacuum regulator or carbon blocking the EGR valve?
have the same problem?
Friday, November 19th, 2010 AT 6:48 PM