I had the same issue. I replaced the gas cap with a Stant locking gas cap and I had to replace the vapor canister valve located at the back of the engine bay on The passenger side. $76.00 for The part, and no more issues
_________________________
2004 Grand Marquis GS, 8500K HID's, Custom CAI with AEM Dryflow filter, Marauder corners, Niteshaded rear reflector. Sold.
2001 MGM GS. 124,000 miles and counting, custom intake / Gatorback
Copyright 2000-2015 by Crownvic.net and Steve Spaulding. All Rights Reserved.
The photographs, graphics and data contained in this Web site are the properties of the contributors, or Crownvic.net and may not be used without expressed written consent. Crownvic.net is not affiliated with the Ford motor company.
Previous Topic
Index
Your Privacy Choices