One problem related to engine has been reported for the 1996 Mercury Grand Marquis. The most recently reported issues are listed below.
I too have recently suffered from the Ford defect - intake crack at approximately 85,000 miles as so many other have with the 4. 6 liter engine. The local dealers say their is currently no recall but their is an existing recall for police and taxi cabs. Purchased the "new style" intake for approximately $450. 00 and repaired myself. I will be holding on to the receipt when Ford realizes they better put a recall on this to regain the trust of loyal buyers! I will also be reporting a complaint to the NHTSA. A back up email address rhanna@rslusa. Net.