ASKED BY: 2000marquis 0 0 1 0 4 4 33 ASK DATE: May. 11, 2008 CATEGORY: Electrical | Ignition Spark Duration Is Too Short Vehicle: 2000 Mercury Grand Marquis Engine: V8 4.6 L Transmission: Automatic Drivetrain: RWD Current Mileage: 134000 I JUST REPLACED THE SPARK PLUGS 5 DAYS AGO IN HOPE THAT THE MESSAGE ABOVE WILL DISAPPEAR BUT WITH NO LUCK I SCANNED THE VEHICLE A SECOND TIME AND THE REPORT SAY THAT THERE IS A PROBLEM WITH THE IGNITION.... HERE IS WHAT THE REPORT SAY.. SPARK DURATION IS TOO SHORT. PROBABLE CAUSE: PRIMARY RESISTANCE IS TOO HIGH. RECOMMENDATION: REPAIR/REPLACE: (IF NECESSARY) IGNITION MODULE. MODULE GROUND PATH. MODULE HARNESS ASSEMBLY. IF OKAY, CHECK: CRANKSHAFT POSITION SENSOR. IGNITION SWITCH AND PRIMARY WIRING. COMMENT BY: way2old 0 2 1 7 3 2 80 COMMENT DATE: May. 12, 6:36 PM QUALIFICATIONS: ASE Certified Site Rank: 2 What kind of scanner are you using? You should be reading a code number, not a print out. Post the EXACT code number so we can offer more help. Username: Password: Remember Me  Sign Up  Forgot Login? Month of July way2old Mech Rep: 80 Site Mileage: 21732 rschaefers Mech Rep: 73 Site Mileage: 6540 lking606 Mech Rep: 32 Site Mileage: 225 LLoydB Mech Rep: 32 Site Mileage: 216 antonz Mech Rep: 32 Site Mileage: 216 About Us | Contact Us | FAQ | Privacy Policy | Site Map Vehicle Aid © 2005-2008. All Rights Reserved.