Two problems related to check engine light on have been reported for the 1998 Mercury Grand Marquis. The most recently reported issues are listed below.
The contact owns a 1998 Mercury Grand Marquis. Whenever the contact turned the vehicle on he noticed that the check engine light would appear on the dashboard. While examining the engine he also noticed that anti-freeze was leaking onto the engine. The vehicle has not been diagnosed by the dealer. The failure mileage was 100,000.
While driving about 25 mph passed over rubbler bars and engine check light came on. Upon passing a farmer's trailer, crossed over a railroad onto on coming traffic, the vehicle shut down, causing the consumer to coast off the road. This was the fifth time that the vehicle has shut down, and the consumer had to reset the switch to get the vehicle to start, and lost power steering.