1997 Mercury Grand Marquis: engine overheating

Filed Feb 9, 2015 · Engine, Transmission · 97,130 miles · NE

Coolant leak from crack in plastic intake manifold. This car only has 97,130 miles on it and well cared for. They should not be using plastic in this application - it should be iron or aluminum. This is a common problem I was told with the 4.6 v8 engine. Ford needs to recall these and replace at no cost to customer. I will be writing a letter to ford if the dealer doesn't cover this as a recall. Ridiculous to use plastic in this application.

Filed Mar 15, 2011 · Engine · 114,000 miles · OH

Tl*the contact owns a 1997 mercury grand marquis. The contact stated that while driving approximately 50 MPH, the vehicle suddenly overheated. The vehicle was taken to a local mechanic who replaced the intake manifold. The manufacturer was not notified. The current and failure mileages were approximately 114,000.

Filed Nov 7, 2007 · Engine · 79,640 miles · IN

Just left highway rest stop in kentucky, no signs of coolant leakage or any problems. Within 5-7 miles at 65mph, a beep, beep sound, then temperature gauge rose immediately to high , began to slow vehicle & turned heater on. Steam was scene from under the hood as we approached a construction area. We barely made it to a closed weigh station. Failure was sudden & catastrophic. Had we remained on the highway, an accident would have surely occurred, no shoulder was available. Two hours waiting for a tow truck, which finally took the vehicle to the nearest ford dealer. Being a sunday, we had to obtain overnight stay in a hotel. Monday the dealer diagnosed the problem as a cracked intake manifold. Dealer replaced the part, including thermostat & coolant. Dealer kept the old parts. Dealer said no recall was made for this part. I believe this was a manufacturer's defect which has very serious or deadly consequence & should be reimbursed/corrected by recall of all of these plastic manifolds. Please help. Thank you

Filed Aug 9, 2006 · Engine · IN

Dt*: the contact stated while driving at 65 MPH, the temperature gauge rose quickly and the vehicle overheated. Hot water leaked out from under the hood and the underside of the vehicle. The vehicle was taken to a private repair shop, who determined that the intake manifold had cracked. Updated 8/30/2006 -

Filed Aug 30, 2005 · Engine, Visibility · 81,000 miles · FL

Dt: the consumer owned a 1997 mercury grand marquis. The plastic intake manifold cracked which caused the vehicle to overheat. There was also some smoking. The consumer stopped and added antifreeze. The service engine light came on, and the temperature gauge went all the way to hot. Consumer was out of town and she had to find a local mechanic as there was no dealerships nearby. The vehicle had to be driven, and then stopped to cool and add water. There were no tow trucks in the area. The vehicle was fixed. It was replaced with a metal intake manifold. The consumer also stated that shortly after the vehicle was purchase both front windows needed new motors. *ak

Filed Jun 24, 2005 · Engine · 94,390 miles · IL

The consumer experienced a coolant leak from the intake manifold gasket on his/her 1997 mercury grand marquis. *jb

Filed Apr 27, 2005 · Engine · 58,000 miles · FL

4.6l engine leaked coolant from the intake manifold, and caused the engine to overheat while driving. Consumer has a concern that the intake manifold was made out of plastic. Dealer was notified, and informed the consumer that this part was not covered under a recall.

Filed Feb 24, 2005 · Engine · 59,995 miles · IN

Regular use of car on a 90 degree day. Engine would overheat show on dash. All coolant was lost. Rear intake had to be replaced and injector cleaned, coolant replaced.

Filed Feb 16, 2005 · Engine · NJ

1997 mercury grand marquis, coolant leakage at intake manifold cross-over.

Filed Jan 16, 2005 · Engine · 93,445 miles · LA

Failure of plastic intake manifold, along front edge. Allowing water to exit engine. Replacement metal manifold over $250.00 plus labor. Stranding my wife 30 miles from home with a vehicle that was overheated, and could not be filled with water.

Filed Dec 28, 2004 · Engine · TX

During travel on fm 1604 (outer loop road around san antonio, texas), I noticed engine overheating. I pulled over and took steps to delay major seizing of engine. Vehicle was spewing steam - looking like hose cracked or loosened. Taken to firestone facility. Firestone unable to repair due to damage being cracked intake manifold! Vehicle repaired at my expense (approximately $1,000.00). In my opinion, vehicle had insufficient mileage to justify such damage. Unable to obtain repair frequency information from ford motor company (fmc) or any other data, including information concerning possible recall efforts after repeated attempts. Unable to receive any response from fmc. In 2004, found out that firestone had issued repair kit to their facilities for cracked intake manifold repairs for various vehicles, including 1997 mercury grand marquis. Fmc continues to comment or respond to my queries.

Filed Nov 5, 2004 · Engine · FL

The intake manifold failed. Vehicle overheated. Consumer stated that they were some plastic pieces in the engine.